Python os.TMP_MAX() Examples

The following are code examples for showing how to use os.TMP_MAX(). They are extracted from open source Python projects. You can vote up the examples you like or vote down the ones you don't like. You can also save this page to your account.

Example 1
Project: kinect-2-libras   Author: inessadl   File: tempfile.py    (Apache License 2.0) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 2
Project: hostapd-mana   Author: adde88   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if _os.name == 'nt' and e.errno == _errno.EACCES:
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 3
Project: zippy   Author: securesystemslab   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError as e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError(_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 4
Project: sslstrip-hsts-openwrt   Author: adde88   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if _os.name == 'nt' and e.errno == _errno.EACCES:
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 5
Project: pefile.pypy   Author: cloudtracer   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if _os.name == 'nt' and e.errno == _errno.EACCES:
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 6
Project: ndk-python   Author: gittor   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 7
Project: pmatic   Author: LarsMichelsen   File: tempfile.py    (license) View Source Project 6 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 8
Project: python-   Author: secondtonone1   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 9
Project: python-   Author: secondtonone1   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 10
Project: python-   Author: secondtonone1   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

    THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 11
Project: kinect-2-libras   Author: inessadl   File: tempfile.py    (Apache License 2.0) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 12
Project: kinect-2-libras   Author: inessadl   File: tempfile.py    (Apache License 2.0) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 13
Project: hostapd-mana   Author: adde88   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 14
Project: hostapd-mana   Author: adde88   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 15
Project: ivaochdoc   Author: ivaoch   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 16
Project: ivaochdoc   Author: ivaoch   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 17
Project: ivaochdoc   Author: ivaoch   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

    THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 18
Project: Intranet-Penetration   Author: yuxiaokui   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 19
Project: Intranet-Penetration   Author: yuxiaokui   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 20
Project: Intranet-Penetration   Author: yuxiaokui   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 21
Project: MKFQ   Author: maojingios   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 22
Project: MKFQ   Author: maojingios   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 23
Project: MKFQ   Author: maojingios   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 24
Project: zippy   Author: securesystemslab   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
            return file
        except OSError as e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError(_errno.EEXIST, "No usable temporary directory name found") 
Example 25
Project: zippy   Author: securesystemslab   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError(_errno.EEXIST, "No usable temporary filename found") 
Example 26
Project: news-for-good   Author: thecodinghub   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 27
Project: news-for-good   Author: thecodinghub   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 28
Project: news-for-good   Author: thecodinghub   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

    THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 29
Project: Tencent_Cartoon_Download   Author: Fretice   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 30
Project: Tencent_Cartoon_Download   Author: Fretice   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 31
Project: Tencent_Cartoon_Download   Author: Fretice   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

    THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 32
Project: oil   Author: oilshell   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 33
Project: oil   Author: oilshell   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 34
Project: oil   Author: oilshell   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 35
Project: python2-tracer   Author: extremecoders-re   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 36
Project: python2-tracer   Author: extremecoders-re   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 37
Project: python2-tracer   Author: extremecoders-re   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 38
Project: fieldsight-kobocat   Author: awemulya   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 39
Project: fieldsight-kobocat   Author: awemulya   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 40
Project: fieldsight-kobocat   Author: awemulya   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

    THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 41
Project: sslstrip-hsts-openwrt   Author: adde88   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 42
Project: sslstrip-hsts-openwrt   Author: adde88   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 43
Project: web_ctp   Author: molebot   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if _os.name == 'nt':
                continue
            else:
                raise

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 44
Project: web_ctp   Author: molebot   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
            return file
        except FileExistsError:
            continue    # try again

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found") 
Example 45
Project: web_ctp   Author: molebot   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found") 
Example 46
Project: xxNet   Author: drzorm   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0600)
            _set_cloexec(fd)
            return (fd, _os.path.abspath(file))
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary file name found")


# User visible interfaces. 
Example 47
Project: xxNet   Author: drzorm   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix="", prefix=template, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()

    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0700)
            return file
        except OSError, e:
            if e.errno == _errno.EEXIST:
                continue # try again
            if (_os.name == 'nt' and e.errno == _errno.EACCES and
                _os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
                # On windows, when a directory with the chosen name already
                # exists, EACCES error code is returned instead of EEXIST.
                continue
            raise

    raise IOError, (_errno.EEXIST, "No usable temporary directory name found") 
Example 48
Project: xxNet   Author: drzorm   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    This function is unsafe and should not be used.  The file name
    refers to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

    if dir is None:
        dir = gettempdir()

    names = _get_candidate_names()
    for seq in xrange(TMP_MAX):
        name = names.next()
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

    raise IOError, (_errno.EEXIST, "No usable temporary filename found") 
Example 49
Project: CloudPrint   Author: William-An   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")


# User visible interfaces. 
Example 50
Project: CloudPrint   Author: William-An   File: tempfile.py    (license) View Source Project 5 votes vote down vote up
def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

    Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

    The directory is readable, writable, and searchable only by the
    creating user.

    Caller is responsible for deleting the directory when done with it.
    """

    prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

    names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

    raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found")