Python _socket.error() Examples

def _udp_socket(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    # backlog argument for compat with tcp_listener
    # pylint:disable=unused-argument

    # we want gevent.socket.socket here
    sock = socket(family=family, type=_socket.SOCK_DGRAM)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    return sock 

def test_makefile_refcount(self):
        "Ensures that the _socket stays open while there's still a file associated"

        def echoer(port):
            s = socket.socket()
            s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # prevents an "Address already in use" error when the socket is in a TIME_WAIT state
            s.bind(('localhost', port))
            s.listen(5)
            (s2, ignore) = s.accept()
            s2.send(s2.recv(10))

        port = 50008

        _thread.start_new_thread(echoer, (port, ))
        time.sleep(1)
        s = socket.socket()
        s.connect(('localhost', port))
        f1 = s.makefile('r')
        f2 = s.makefile('w')
        s.close()
        test_msg = 'abc\n'
        f2.write(test_msg)
        f2.flush()
        str = f1.readline()
        self.assertEqual(str, test_msg) 

def systemcall(meth):
    """Decorator to make system call methods safe from EINTR."""
    # have to import this way to avoid a circular import
    from _socket import error as SocketError
    def systemcallmeth(*args, **kwargs):
        while 1:
            try:
                rv = meth(*args, **kwargs)
            except EnvironmentError as why:
                if why.args and why.args[0] == EINTR:
                    continue
                else:
                    raise
            except SocketError as why:
                if why.args and why.args[0] == EINTR:
                    continue
                else:
                    raise
            else:
                break
        return rv
    return systemcallmeth 

def __call__(self, source):
        self.count -= 1
        if source.exception is None:
            self.values.append(source.value)
        else:
            self.error = source.exception
        if self.count <= 0:
            self.waiter.switch() 

def get(self):
        self.waiter.get()
        if self.values:
            return self.values
        else:
            assert error is not None
            raise self.error # pylint:disable=raising-bad-type 

def _resolve_special(hostname, family):
    if hostname == '':
        result = getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE)
        if len(result) != 1:
            raise error('wildcard resolved to multiple address')
        return result[0][4][0]
    return hostname 

def _formatinfo(self):
        if hasattr(self, 'socket'):
            try:
                fileno = self.socket.fileno()
            except Exception as ex:
                fileno = str(ex)
            result = 'fileno=%s ' % fileno
        else:
            result = ''
        try:
            if isinstance(self.address, tuple) and len(self.address) == 2:
                result += 'address=%s:%s' % self.address
            else:
                result += 'address=%s' % (self.address, )
        except Exception as ex:
            result += str(ex) or '<error>'

        handle = self.__dict__.get('handle')
        if handle is not None:
            fself = getattr(handle, '__self__', None)
            try:
                if fself is self:
                    # Checks the __self__ of the handle in case it is a bound
                    # method of self to prevent recursivly defined reprs.
                    handle_repr = '<bound method %s.%s of self>' % (
                        self.__class__.__name__,
                        handle.__name__,
                    )
                else:
                    handle_repr = repr(handle)

                result += ' handle=' + handle_repr
            except Exception as ex:
                result += str(ex) or '<error>'

        return result 

def do_read(self):
            try:
                client_socket, address = self.socket.accept()
            except _socket.error as err:
                if err.args[0] == EWOULDBLOCK:
                    return
                raise
            sockobj = socket(_sock=client_socket)
            if PYPY:
                client_socket._drop()
            return sockobj, address 

def do_read(self):
        try:
            data, address = self._socket.recvfrom(8192)
        except _socket.error as err:
            if err.args[0] == EWOULDBLOCK:
                return
            raise
        return data, address 

def _tcp_listener(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    """A shortcut to create a TCP socket, bind it and put it into listening state."""
    sock = socket(family=family)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    sock.listen(backlog)
    sock.setblocking(0)
    return sock 

def _udp_socket(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    # we want gevent.socket.socket here
    sock = socket(family=family, type=_socket.SOCK_DGRAM)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    return sock 

def __init__(self, hub, count):
        self.count = count
        self.values = []
        self.error = None
        self.waiter = Waiter(hub) 

def __call__(self, source):
        self.count -= 1
        if source.exception is None:
            self.values.append(source.value)
        else:
            self.error = source.exception
        if self.count <= 0:
            self.waiter.switch() 

def _resolve_special(hostname, family):
    if hostname == '':
        result = getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE)
        if len(result) != 1:
            raise error('wildcard resolved to multiple address')
        return result[0][4][0]
    return hostname 

def _formatinfo(self):
        if hasattr(self, 'socket'):
            try:
                fileno = self.socket.fileno()
            except Exception as ex:
                fileno = str(ex)
            result = 'fileno=%s ' % fileno
        else:
            result = ''
        try:
            if isinstance(self.address, tuple) and len(self.address) == 2:
                result += 'address=%s:%s' % self.address
            else:
                result += 'address=%s' % (self.address, )
        except Exception as ex:
            result += str(ex) or '<error>'

        handle = self.__dict__.get('handle')
        if handle is not None:
            fself = getattr(handle, '__self__', None)
            try:
                if fself is self:
                    # Checks the __self__ of the handle in case it is a bound
                    # method of self to prevent recursivly defined reprs.
                    handle_repr = '<bound method %s.%s of self>' % (
                        self.__class__.__name__,
                        handle.__name__,
                    )
                else:
                    handle_repr = repr(handle)

                result += ' handle=' + handle_repr
            except Exception as ex:
                result += str(ex) or '<error>'

        return result 

def is_fatal_error(self, ex):
        return isinstance(ex, _socket.error) and ex.args[0] in self.fatal_errors 

def do_read(self):
        try:
            data, address = self._socket.recvfrom(8192)
        except _socket.error as err:
            if err.args[0] == EWOULDBLOCK:
                return
            raise
        return data, address 

def _tcp_listener(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    """A shortcut to create a TCP socket, bind it and put it into listening state."""
    sock = socket(family=family)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    sock.listen(backlog)
    sock.setblocking(0)
    return sock 

def _udp_socket(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    # we want gevent.socket.socket here
    sock = socket(family=family, type=_socket.SOCK_DGRAM)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    return sock 

def _getnameinfo(self, sockaddr, flags):
        if not isinstance(flags, int):
            raise TypeError('an integer is required')
        if not isinstance(sockaddr, tuple):
            raise TypeError('getnameinfo() argument 1 must be a tuple')

        address = sockaddr[0]
        if not PY3 and isinstance(address, text_type):
            address = address.encode('ascii')

        if not isinstance(address, string_types):
            raise TypeError('sockaddr[0] must be a string, not %s' % type(address).__name__)

        port = sockaddr[1]
        if not isinstance(port, int):
            raise TypeError('port must be an integer, not %s' % type(port))

        waiter = Waiter(self.hub)
        result = self._getaddrinfo(address, str(sockaddr[1]), family=AF_UNSPEC, socktype=SOCK_DGRAM)
        if not result:
            reraise(*sys.exc_info())
        elif len(result) != 1:
            raise error('sockaddr resolved to multiple addresses')
        family, socktype, proto, name, address = result[0]

        if family == AF_INET:
            if len(sockaddr) != 2:
                raise error("IPv4 sockaddr must be 2 tuple")
        elif family == AF_INET6:
            address = address[:2] + sockaddr[2:]

        self.ares.getnameinfo(waiter, address, flags)
        node, service = waiter.get()
        if service is None:
            service = '0'
        return node, service 

def __call__(self, source):
        self.count -= 1
        if source.exception is None:
            self.values.append(source.value)
        else:
            self.error = source.exception
        if self.count <= 0:
            self.waiter.switch() 

def _resolve_special(hostname, family):
    if hostname == '':
        result = getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE)
        if len(result) != 1:
            raise error('wildcard resolved to multiple address')
        return result[0][4][0]
    return hostname 

def _formatinfo(self):
        if hasattr(self, 'socket'):
            try:
                fileno = self.socket.fileno()
            except Exception as ex:
                fileno = str(ex)
            result = 'fileno=%s ' % fileno
        else:
            result = ''
        try:
            if isinstance(self.address, tuple) and len(self.address) == 2:
                result += 'address=%s:%s' % self.address
            else:
                result += 'address=%s' % (self.address, )
        except Exception as ex:
            result += str(ex) or '<error>'

        handle = self.__dict__.get('handle')
        if handle is not None:
            fself = getattr(handle, '__self__', None)
            try:
                if fself is self:
                    # Checks the __self__ of the handle in case it is a bound
                    # method of self to prevent recursivly defined reprs.
                    handle_repr = '<bound method %s.%s of self>' % (
                        self.__class__.__name__,
                        handle.__name__,
                    )
                else:
                    handle_repr = repr(handle)

                result += ' handle=' + handle_repr
            except Exception as ex:
                result += str(ex) or '<error>'

        return result 

def is_fatal_error(self, ex):
        return isinstance(ex, _socket.error) and ex.args[0] in self.fatal_errors 

def _resolve_special(hostname, family):
    if hostname == '':
        result = getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE)
        if len(result) != 1:
            raise error('wildcard resolved to multiple address')
        return result[0][4][0]
    return hostname 

def test_inet_ntop(self):
        '''Tests _socket.inet_ntop'''
        
        #negative
        self.assertRaises(_socket.error, _socket.inet_ntop, _socket.AF_INET, "garbage dkfjdkfjdkfj") 

def test_inet_pton(self):
        '''Tests _socket.inet_pton'''
       
        #sanity
        _socket.inet_pton(_socket.AF_INET, "127.0.0.1")
            
        #negative
        self.assertRaises(_socket.error, _socket.inet_pton, _socket.AF_INET, "garbage dkfjdkfjdkfj") 

def do_read(self):
            try:
                client_socket, address = self.socket.accept()
            except _socket.error as err:
                if err.args[0] == EWOULDBLOCK:
                    return
                raise
            sockobj = socket(_sock=client_socket)
            if PYPY:
                client_socket._drop()
            return sockobj, address 

def do_read(self):
        try:
            data, address = self._socket.recvfrom(8192)
        except _socket.error as err:
            if err.args[0] == EWOULDBLOCK:
                return
            raise
        return data, address 

def _tcp_listener(address, backlog=50, reuse_addr=None, family=_socket.AF_INET):
    """A shortcut to create a TCP socket, bind it and put it into listening state."""
    sock = socket(family=family)
    if reuse_addr is not None:
        sock.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, reuse_addr)
    try:
        sock.bind(address)
    except _socket.error as ex:
        strerror = getattr(ex, 'strerror', None)
        if strerror is not None:
            ex.strerror = strerror + ': ' + repr(address)
        raise
    sock.listen(backlog)
    sock.setblocking(0)
    return sock