THRIFT-3596 Better conformance to PEP8

This closes #832
diff --git a/lib/py/src/transport/TSocket.py b/lib/py/src/transport/TSocket.py
index cb204a4..a8ed4b7 100644
--- a/lib/py/src/transport/TSocket.py
+++ b/lib/py/src/transport/TSocket.py
@@ -22,159 +22,159 @@
 import socket
 import sys
 
-from .TTransport import *
+from .TTransport import TTransportBase, TTransportException, TServerTransportBase
 
 
 class TSocketBase(TTransportBase):
-  def _resolveAddr(self):
-    if self._unix_socket is not None:
-      return [(socket.AF_UNIX, socket.SOCK_STREAM, None, None,
-               self._unix_socket)]
-    else:
-      return socket.getaddrinfo(self.host,
-                                self.port,
-                                self._socket_family,
-                                socket.SOCK_STREAM,
-                                0,
-                                socket.AI_PASSIVE | socket.AI_ADDRCONFIG)
+    def _resolveAddr(self):
+        if self._unix_socket is not None:
+            return [(socket.AF_UNIX, socket.SOCK_STREAM, None, None,
+                     self._unix_socket)]
+        else:
+            return socket.getaddrinfo(self.host,
+                                      self.port,
+                                      self._socket_family,
+                                      socket.SOCK_STREAM,
+                                      0,
+                                      socket.AI_PASSIVE | socket.AI_ADDRCONFIG)
 
-  def close(self):
-    if self.handle:
-      self.handle.close()
-      self.handle = None
+    def close(self):
+        if self.handle:
+            self.handle.close()
+            self.handle = None
 
 
 class TSocket(TSocketBase):
-  """Socket implementation of TTransport base."""
+    """Socket implementation of TTransport base."""
 
-  def __init__(self, host='localhost', port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
-    """Initialize a TSocket
+    def __init__(self, host='localhost', port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
+        """Initialize a TSocket
 
-    @param host(str)  The host to connect to.
-    @param port(int)  The (TCP) port to connect to.
-    @param unix_socket(str)  The filename of a unix socket to connect to.
-                             (host and port will be ignored.)
-    @param socket_family(int)  The socket family to use with this socket.
-    """
-    self.host = host
-    self.port = port
-    self.handle = None
-    self._unix_socket = unix_socket
-    self._timeout = None
-    self._socket_family = socket_family
+        @param host(str)  The host to connect to.
+        @param port(int)  The (TCP) port to connect to.
+        @param unix_socket(str)  The filename of a unix socket to connect to.
+                                 (host and port will be ignored.)
+        @param socket_family(int)  The socket family to use with this socket.
+        """
+        self.host = host
+        self.port = port
+        self.handle = None
+        self._unix_socket = unix_socket
+        self._timeout = None
+        self._socket_family = socket_family
 
-  def setHandle(self, h):
-    self.handle = h
+    def setHandle(self, h):
+        self.handle = h
 
-  def isOpen(self):
-    return self.handle is not None
+    def isOpen(self):
+        return self.handle is not None
 
-  def setTimeout(self, ms):
-    if ms is None:
-      self._timeout = None
-    else:
-      self._timeout = ms / 1000.0
+    def setTimeout(self, ms):
+        if ms is None:
+            self._timeout = None
+        else:
+            self._timeout = ms / 1000.0
 
-    if self.handle is not None:
-      self.handle.settimeout(self._timeout)
+        if self.handle is not None:
+            self.handle.settimeout(self._timeout)
 
-  def open(self):
-    try:
-      res0 = self._resolveAddr()
-      for res in res0:
-        self.handle = socket.socket(res[0], res[1])
-        self.handle.settimeout(self._timeout)
+    def open(self):
         try:
-          self.handle.connect(res[4])
+            res0 = self._resolveAddr()
+            for res in res0:
+                self.handle = socket.socket(res[0], res[1])
+                self.handle.settimeout(self._timeout)
+                try:
+                    self.handle.connect(res[4])
+                except socket.error as e:
+                    if res is not res0[-1]:
+                        continue
+                    else:
+                        raise e
+                break
         except socket.error as e:
-          if res is not res0[-1]:
-            continue
-          else:
-            raise e
-        break
-    except socket.error as e:
-      if self._unix_socket:
-        message = 'Could not connect to socket %s' % self._unix_socket
-      else:
-        message = 'Could not connect to %s:%d' % (self.host, self.port)
-      raise TTransportException(type=TTransportException.NOT_OPEN,
-                                message=message)
+            if self._unix_socket:
+                message = 'Could not connect to socket %s' % self._unix_socket
+            else:
+                message = 'Could not connect to %s:%d' % (self.host, self.port)
+            raise TTransportException(type=TTransportException.NOT_OPEN,
+                                      message=message)
 
-  def read(self, sz):
-    try:
-      buff = self.handle.recv(sz)
-    except socket.error as e:
-      if (e.args[0] == errno.ECONNRESET and
-          (sys.platform == 'darwin' or sys.platform.startswith('freebsd'))):
-        # freebsd and Mach don't follow POSIX semantic of recv
-        # and fail with ECONNRESET if peer performed shutdown.
-        # See corresponding comment and code in TSocket::read()
-        # in lib/cpp/src/transport/TSocket.cpp.
-        self.close()
-        # Trigger the check to raise the END_OF_FILE exception below.
-        buff = ''
-      else:
-        raise
-    if len(buff) == 0:
-      raise TTransportException(type=TTransportException.END_OF_FILE,
-                                message='TSocket read 0 bytes')
-    return buff
+    def read(self, sz):
+        try:
+            buff = self.handle.recv(sz)
+        except socket.error as e:
+            if (e.args[0] == errno.ECONNRESET and
+                    (sys.platform == 'darwin' or sys.platform.startswith('freebsd'))):
+                # freebsd and Mach don't follow POSIX semantic of recv
+                # and fail with ECONNRESET if peer performed shutdown.
+                # See corresponding comment and code in TSocket::read()
+                # in lib/cpp/src/transport/TSocket.cpp.
+                self.close()
+                # Trigger the check to raise the END_OF_FILE exception below.
+                buff = ''
+            else:
+                raise
+        if len(buff) == 0:
+            raise TTransportException(type=TTransportException.END_OF_FILE,
+                                      message='TSocket read 0 bytes')
+        return buff
 
-  def write(self, buff):
-    if not self.handle:
-      raise TTransportException(type=TTransportException.NOT_OPEN,
-                                message='Transport not open')
-    sent = 0
-    have = len(buff)
-    while sent < have:
-      plus = self.handle.send(buff)
-      if plus == 0:
-        raise TTransportException(type=TTransportException.END_OF_FILE,
-                                  message='TSocket sent 0 bytes')
-      sent += plus
-      buff = buff[plus:]
+    def write(self, buff):
+        if not self.handle:
+            raise TTransportException(type=TTransportException.NOT_OPEN,
+                                      message='Transport not open')
+        sent = 0
+        have = len(buff)
+        while sent < have:
+            plus = self.handle.send(buff)
+            if plus == 0:
+                raise TTransportException(type=TTransportException.END_OF_FILE,
+                                          message='TSocket sent 0 bytes')
+            sent += plus
+            buff = buff[plus:]
 
-  def flush(self):
-    pass
+    def flush(self):
+        pass
 
 
 class TServerSocket(TSocketBase, TServerTransportBase):
-  """Socket implementation of TServerTransport base."""
+    """Socket implementation of TServerTransport base."""
 
-  def __init__(self, host=None, port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
-    self.host = host
-    self.port = port
-    self._unix_socket = unix_socket
-    self._socket_family = socket_family
-    self.handle = None
+    def __init__(self, host=None, port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
+        self.host = host
+        self.port = port
+        self._unix_socket = unix_socket
+        self._socket_family = socket_family
+        self.handle = None
 
-  def listen(self):
-    res0 = self._resolveAddr()
-    socket_family = self._socket_family == socket.AF_UNSPEC and socket.AF_INET6 or self._socket_family
-    for res in res0:
-      if res[0] is socket_family or res is res0[-1]:
-        break
+    def listen(self):
+        res0 = self._resolveAddr()
+        socket_family = self._socket_family == socket.AF_UNSPEC and socket.AF_INET6 or self._socket_family
+        for res in res0:
+            if res[0] is socket_family or res is res0[-1]:
+                break
 
-    # We need remove the old unix socket if the file exists and
-    # nobody is listening on it.
-    if self._unix_socket:
-      tmp = socket.socket(res[0], res[1])
-      try:
-        tmp.connect(res[4])
-      except socket.error as err:
-        eno, message = err.args
-        if eno == errno.ECONNREFUSED:
-          os.unlink(res[4])
+        # We need remove the old unix socket if the file exists and
+        # nobody is listening on it.
+        if self._unix_socket:
+            tmp = socket.socket(res[0], res[1])
+            try:
+                tmp.connect(res[4])
+            except socket.error as err:
+                eno, message = err.args
+                if eno == errno.ECONNREFUSED:
+                    os.unlink(res[4])
 
-    self.handle = socket.socket(res[0], res[1])
-    self.handle.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-    if hasattr(self.handle, 'settimeout'):
-      self.handle.settimeout(None)
-    self.handle.bind(res[4])
-    self.handle.listen(128)
+        self.handle = socket.socket(res[0], res[1])
+        self.handle.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        if hasattr(self.handle, 'settimeout'):
+            self.handle.settimeout(None)
+        self.handle.bind(res[4])
+        self.handle.listen(128)
 
-  def accept(self):
-    client, addr = self.handle.accept()
-    result = TSocket()
-    result.setHandle(client)
-    return result
+    def accept(self):
+        client, addr = self.handle.accept()
+        result = TSocket()
+        result.setHandle(client)
+        return result