Python tempfile._get_default_tempdir() Examples

def upx_unpack(self, seed=None):
        # dump bytez to a temporary file
        tmpfilename = os.path.join(
            tempfile._get_default_tempdir(), next(tempfile._get_candidate_names()))

        with open(tmpfilename, 'wb') as outfile:
            outfile.write(self.bytez)

        with open(os.devnull, 'w') as DEVNULL:
            retcode = subprocess.call(
                ['upx', tmpfilename, '-d', '-o', tmpfilename + '_unpacked'], stdout=DEVNULL, stderr=DEVNULL)

        os.unlink(tmpfilename)

        if retcode == 0:  # sucessfully unpacked
            with open(tmpfilename + '_unpacked', 'rb') as result:
                self.bytez = result.read()

            os.unlink(tmpfilename + '_unpacked')

        return self.bytez 

def test_barracuda_converter():
    path_prefix = os.path.dirname(os.path.abspath(__file__))
    tmpfile = os.path.join(
        tempfile._get_default_tempdir(), next(tempfile._get_candidate_names()) + ".nn"
    )

    # make sure there are no left-over files
    if os.path.isfile(tmpfile):
        os.remove(tmpfile)

    tf2bc.convert(path_prefix + "/BasicLearning.pb", tmpfile)

    # test if file exists after conversion
    assert os.path.isfile(tmpfile)
    # currently converter produces small output file even if input file is empty
    # 100 bytes is high enough to prove that conversion was successful
    assert os.path.getsize(tmpfile) > 100

    # cleanup
    os.remove(tmpfile) 

def wfuzz_me_test_generator_previous_session(prev_session_cli, next_session_cli, expected_list):
    def test(self):
        temp_name = next(tempfile._get_candidate_names())
        defult_tmp_dir = tempfile._get_default_tempdir()

        filename = os.path.join(defult_tmp_dir, temp_name)

        # first session
        with wfuzz.get_session(prev_session_cli) as s:
            ret_list = [x.eval(x._description) if x._description else x.description for x in s.fuzz(save=filename)]

        # second session wfuzzp as payload
        with wfuzz.get_session(next_session_cli.replace("$$PREVFILE$$", filename)) as s:
            ret_list = [x.eval(x._description) if x._description else x.description for x in s.fuzz()]

        self.assertEqual(sorted(ret_list), sorted(expected_list))

    return test 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def upx_pack(self, seed=None):
        # tested with UPX 3.91
        random.seed(seed)
        tmpfilename = os.path.join(
            tempfile._get_default_tempdir(), next(tempfile._get_candidate_names()))

        # dump bytez to a temporary file
        with open(tmpfilename, 'wb') as outfile:
            outfile.write(self.bytez)

        options = ['--force', '--overlay=copy']
        compression_level = random.randint(1, 9)
        options += ['-{}'.format(compression_level)]
        # --exact
        # compression levels -1 to -9
        # --overlay=copy [default]

        # optional things:
        # --compress-exports=0/1
        # --compress-icons=0/1/2/3
        # --compress-resources=0/1
        # --strip-relocs=0/1
        options += ['--compress-exports={}'.format(random.randint(0, 1))]
        options += ['--compress-icons={}'.format(random.randint(0, 3))]
        options += ['--compress-resources={}'.format(random.randint(0, 1))]
        options += ['--strip-relocs={}'.format(random.randint(0, 1))]

        with open(os.devnull, 'w') as DEVNULL:
            retcode = subprocess.call(
                ['upx'] + options + [tmpfilename, '-o', tmpfilename + '_packed'], stdout=DEVNULL, stderr=DEVNULL)

        os.unlink(tmpfilename)

        if retcode == 0:  # successfully packed

            with open(tmpfilename + '_packed', 'rb') as infile:
                self.bytez = infile.read()

            os.unlink(tmpfilename + '_packed')

        return self.bytez 

def generate(self):
      
      import codecs
            
      if self.settings.html_file:
         html_file = self.settings.html_file
      else:
         html_file = "elf_diff_" + self.getReportBasename() + ".html"
         
      print("Writing html file " + html_file)
      with codecs.open(html_file, "w", "utf-8") as f:
         self.writeHTML(f)
         
      if self.settings.pdf_file:
         
         import tempfile
         
         tmp_html_file = tempfile._get_default_tempdir() + \
            "/" + next(tempfile._get_candidate_names()) + ".html"
                
         with codecs.open(tmp_html_file, "w", "utf-8") as f:
            self.writeHTML(f, skip_details = True)
         
         import pdfkit
         pdfkit.from_url(tmp_html_file, self.settings.pdf_file)
         
         import os
         os.remove(tmp_html_file) 

def test_no_files_left_behind(self):
        # use a private empty directory
        with tempfile.TemporaryDirectory() as our_temp_directory:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError()

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), [])

                def bad_writer(*args, **kwargs):
                    fp = orig_open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer) as orig_open:
                    # test again with failing write()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), []) 

def test_wanted_dirs(self):
        # _candidate_tempdir_list contains the expected directories

        # Make sure the interesting environment variables are all set.
        with support.EnvironmentVarGuard() as env:
            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname:
                    env[envname] = os.path.abspath(envname)

            cand = tempfile._candidate_tempdir_list()

            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname: raise ValueError
                self.assertIn(dirname, cand)

            try:
                dirname = os.getcwd()
            except (AttributeError, OSError):
                dirname = os.curdir

            self.assertIn(dirname, cand)

            # Not practical to try to verify the presence of OS-specific
            # paths in this list.


# We test _get_default_tempdir some more by testing gettempdir. 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def generate_temp_filename(temp_dir=None, prefix="", suffix=""):
    '''Function to generate path to temporary filenames (does not create the)
    files). The input arguments can be used to customize the temporary
    filename. If no temporary directory is specified then the default temprary
    directory will be used.'''

    # If temp_dir not set then get default directory.
    if not temp_dir:
        temp_dir = tempfile._get_default_tempdir()

    return(join(temp_dir, prefix +
                next(tempfile._get_candidate_names()) + suffix)) 

def test_no_files_left_behind(self):
        # use a private empty directory
        with tempfile.TemporaryDirectory() as our_temp_directory:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError()

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), [])

                def bad_writer(*args, **kwargs):
                    fp = orig_open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer) as orig_open:
                    # test again with failing write()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), []) 

def test_wanted_dirs(self):
        # _candidate_tempdir_list contains the expected directories

        # Make sure the interesting environment variables are all set.
        with support.EnvironmentVarGuard() as env:
            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname:
                    env[envname] = os.path.abspath(envname)

            cand = tempfile._candidate_tempdir_list()

            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname: raise ValueError
                self.assertIn(dirname, cand)

            try:
                dirname = os.getcwd()
            except (AttributeError, OSError):
                dirname = os.curdir

            self.assertIn(dirname, cand)

            # Not practical to try to verify the presence of OS-specific
            # paths in this list.


# We test _get_default_tempdir some more by testing gettempdir. 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def wfuzz_me_test_generator_recipe(url, payloads, params, expected_list):
    def test(self):
        temp_name = next(tempfile._get_candidate_names())
        defult_tmp_dir = tempfile._get_default_tempdir()

        filename = os.path.join(defult_tmp_dir, temp_name)

        # Wfuzz results
        with wfuzz.FuzzSession(url=url, **params) as s:
            s.export_to_file(filename)

            if payloads is None:
                fuzzed = s.fuzz()
            else:
                fuzzed = s.get_payloads(payloads).fuzz()

            ret_list = [(x.code, x.history.urlparse.path) for x in fuzzed]

        # repeat test with recipe as only parameter
        with wfuzz.FuzzSession(recipe=[filename]) as s:
            if payloads is None:
                same_list = [(x.code, x.history.urlparse.path) for x in s.fuzz()]
            else:
                same_list = [(x.code, x.history.urlparse.path) for x in s.get_payloads(payloads).fuzz()]

        self.assertEqual(sorted(ret_list), sorted(same_list))

    return test 

def wfuzz_me_test_generator_saveres(url, payloads, params, expected_list):
    def test(self):
        if not expected_list:
            return
        temp_name = next(tempfile._get_candidate_names())
        defult_tmp_dir = tempfile._get_default_tempdir()

        filename = os.path.join(defult_tmp_dir, temp_name)

        # Wfuzz results
        with wfuzz.FuzzSession(url=url, **dict(list(params.items()) + list(dict(save=filename).items()))) as s:
            if payloads is None:
                fuzzed = s.fuzz()
            else:
                fuzzed = s.get_payloads(payloads).fuzz()

            ret_list = [(x.code, x.history.urlparse.path) for x in fuzzed]

        # repeat test with performaing same saved request
        with wfuzz.FuzzSession(payloads=[("wfuzzp", dict(fn=filename))], url="FUZZ") as s:
            same_list = [(x.code, x.history.urlparse.path) for x in s.fuzz()]

        self.assertEqual(sorted(ret_list), sorted(same_list))

        # repeat test with performaing FUZZ[url] saved request
        with wfuzz.FuzzSession(payloads=[("wfuzzp", dict(fn=filename))], url="FUZZ[url]") as s:
            same_list = [(x.code, x.history.urlparse.path) for x in s.fuzz()]

        self.assertEqual(sorted(ret_list), sorted(same_list))

    return test 

def process(self, fuzzresult):
        temp_name = next(tempfile._get_candidate_names())
        defult_tmp_dir = tempfile._get_default_tempdir()

        filename = os.path.join(defult_tmp_dir, temp_name + ".png")

        subprocess.call(['cutycapt', '--url=%s' % pipes.quote(fuzzresult.url), '--out=%s' % filename])
        self.add_result("Screnshot taken, output at %s" % filename) 

def test_file_loading2(self):
        data = self.data[:1000]
        directory = tempfile._get_default_tempdir()
        filename = next(tempfile._get_candidate_names())
        filename = directory + os.sep + filename + ".npy"
        np.save(filename, data)
        consumer = ChainConsumer()
        consumer.add_chain(filename)
        summary = consumer.analysis.get_summary()
        actual = np.array(list(summary.values())[0])
        assert np.abs(actual[1] - 5.0) < 0.5 

def test_file_loading1(self):
        data = self.data[:1000]
        directory = tempfile._get_default_tempdir()
        filename = next(tempfile._get_candidate_names())
        filename = directory + os.sep + filename + ".txt"
        np.savetxt(filename, data)
        consumer = ChainConsumer()
        consumer.add_chain(filename)
        summary = consumer.analysis.get_summary()
        actual = np.array(list(summary.values())[0])
        assert np.abs(actual[1] - 5.0) < 0.5 

def test_no_files_left_behind(self):
        # use a private empty directory
        with tempfile.TemporaryDirectory() as our_temp_directory:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError()

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), []) 

def test_wanted_dirs(self):
        # _candidate_tempdir_list contains the expected directories

        # Make sure the interesting environment variables are all set.
        with support.EnvironmentVarGuard() as env:
            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname:
                    env[envname] = os.path.abspath(envname)

            cand = tempfile._candidate_tempdir_list()

            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname: raise ValueError
                self.assertIn(dirname, cand)

            try:
                dirname = os.getcwd()
            except (AttributeError, OSError):
                dirname = os.curdir

            self.assertIn(dirname, cand)

            # Not practical to try to verify the presence of OS-specific
            # paths in this list.


# We test _get_default_tempdir some more by testing gettempdir. 

def mktemppath():
    try:
        path = os.path.join(
            tempfile._get_default_tempdir(), next(tempfile._get_candidate_names())
        )
        yield path
    finally:
        try:
            os.unlink(path)
        except OSError as e:
            current_app.logger.debug("No file {0}".format(path)) 

def test_no_files_left_behind(self):
        # use a private empty directory
        with tempfile.TemporaryDirectory() as our_temp_directory:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError()

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(FileNotFoundError):
                        tempfile._get_default_tempdir()
                    self.assertEqual(os.listdir(our_temp_directory), []) 

def test_wanted_dirs(self):
        # _candidate_tempdir_list contains the expected directories

        # Make sure the interesting environment variables are all set.
        with support.EnvironmentVarGuard() as env:
            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname:
                    env[envname] = os.path.abspath(envname)

            cand = tempfile._candidate_tempdir_list()

            for envname in 'TMPDIR', 'TEMP', 'TMP':
                dirname = os.getenv(envname)
                if not dirname: raise ValueError
                self.assertIn(dirname, cand)

            try:
                dirname = os.getcwd()
            except (AttributeError, OSError):
                dirname = os.curdir

            self.assertIn(dirname, cand)

            # Not practical to try to verify the presence of OS-specific
            # paths in this list.


# We test _get_default_tempdir some more by testing gettempdir. 

def generate_tmp_filename(extension):
    return tempfile._get_default_tempdir() + "/" + next(tempfile._get_candidate_names()) + "." + extension 

def render_point_cloud(point_cloud, cfg):
    """
    Wraps the call to blender to render the image
    """
    cfg = edict(cfg)
    temp_dir = tempfile._get_default_tempdir()

    temp_name = next(tempfile._get_candidate_names())
    in_file = f"{temp_dir}/{temp_name}.npz"
    point_cloud_save = np.reshape(point_cloud, (1, -1, 3))
    np.savez(in_file, point_cloud_save)

    temp_name = next(tempfile._get_candidate_names())
    out_file = f"{temp_dir}/{temp_name}.png"

    args = build_command_line_args([["in_file", in_file],
                                    ["out_file", out_file],
                                    ["vis_azimuth", cfg.vis_azimuth],
                                    ["vis_elevation", cfg.vis_elevation],
                                    ["vis_dist", cfg.vis_dist],
                                    ["cycles_samples", cfg.render_cycles_samples],
                                    ["like_train_data", True],
                                    ["voxels", False],
                                    ["colored_subsets", False],
                                    ["image_size", cfg.render_image_size]],
                                   as_string=False)

    full_args = [blender_exec, "--background", "-P", python_script, "--"] + args
    subprocess.check_call(full_args, stdout=subprocess.DEVNULL, stderr=subprocess.STDOUT)

    image = imageio.imread(out_file)
    os.remove(in_file)
    os.remove(out_file)

    return image 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                open = io.open
                def bad_writer(*args, **kwargs):
                    fp = open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer):
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def test_no_files_left_behind(self):
        # use a private empty directory
        our_temp_directory = tempfile.mkdtemp()
        try:
            # force _get_default_tempdir() to consider our empty directory
            def our_candidate_list():
                return [our_temp_directory]

            with support.swap_attr(tempfile, "_candidate_tempdir_list",
                                   our_candidate_list):
                # verify our directory is empty after _get_default_tempdir()
                tempfile._get_default_tempdir()
                self.assertEqual(os.listdir(our_temp_directory), [])

                def raise_OSError(*args, **kwargs):
                    raise OSError(-1)

                with support.swap_attr(io, "open", raise_OSError):
                    # test again with failing io.open()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])

                def bad_writer(*args, **kwargs):
                    fp = orig_open(*args, **kwargs)
                    fp.write = raise_OSError
                    return fp

                with support.swap_attr(io, "open", bad_writer) as orig_open:
                    # test again with failing write()
                    with self.assertRaises(IOError) as cm:
                        tempfile._get_default_tempdir()
                    self.assertEqual(cm.exception.errno, errno.ENOENT)
                    self.assertEqual(os.listdir(our_temp_directory), [])
        finally:
            shutil.rmtree(our_temp_directory) 

def get_new_temp_file_path(extension):
    tmp_dir = tempfile._get_default_tempdir()
    tmp_name = next(tempfile._get_candidate_names())
    tmp_file = os.path.join(tmp_dir, tmp_name + "." + extension)
    return tmp_file