Removing all calls to sys.exc_clear(). This is only necessary in very rare...

Removing all calls to sys.exc_clear(). This is only necessary in very rare circumstances, and if there is such a circumstance, it should be clearly documented in code.

src/common/xmpp/dispatcher_nb.py

@@ -135,7 +135,6 @@ class Dispatcher(PlugIn):
 				self._owner.Connection.disconnect()
 				return 0
 		except ExpatError:
-			sys.exc_clear()
 			self.DEBUG('Invalid XML received from server. Forcing disconnect.', 'error')
 			self._owner.Connection.pollend()
 			return 0

src/common/xmpp/transports_nb.py

@@ -249,7 +249,6 @@ class NonBlockingTcp(PlugIn, IdleObject):
 			self._sock.setblocking(False)
 		except:
 			traceback.print_exc()
-			sys.exc_clear()
 			if self.on_connect_failure:
 				self.on_connect_failure()
 			return False
@@ -303,7 +302,6 @@ class NonBlockingTcp(PlugIn, IdleObject):
 		except:
 			traceback.print_exc()
 			# socket is already closed
-			sys.exc_clear()
 		# socket descriptor cannot be (un)plugged anymore
 		self.fd = -1
 		if self.on_disconnect:
@@ -432,7 +430,6 @@ class NonBlockingTcp(PlugIn, IdleObject):
 				self._on_send()
 		except socket.error, e:
 			traceback.print_exc()
-			sys.exc_clear()
 			if e[0] == socket.SSL_ERROR_WANT_WRITE:
 				return True		
 			if self.state < 0:
@@ -453,7 +450,6 @@ class NonBlockingTcp(PlugIn, IdleObject):
 		except socket.error, e:
 			traceback.print_exc()
 			errnum = e[0]
-			sys.exc_clear()
 		# in progress, or would block
 		if errnum in (errno.EINPROGRESS, errno.EALREADY, errno.EWOULDBLOCK): 
 			return

src/common/zeroconf/client_zeroconf.py

@@ -377,7 +377,6 @@ class P2PConnection(IdleObject, PlugIn):
 		except Exception, e:
 			if len(e.args)  > 0 and isinstance(e.args[0], int):
 				errnum = e[0]
-			sys.exc_clear()
 			# "received" will be empty anyhow 
 		if errnum == socket.SSL_ERROR_WANT_READ:
 			pass
@@ -457,7 +456,6 @@ class P2PConnection(IdleObject, PlugIn):
 				self._on_send()
 
 		except socket.error, e:
-			sys.exc_clear()
 			if e[0] == socket.SSL_ERROR_WANT_WRITE:
 				return True		
 			if self.state < 0:

src/gajim-remote.py

@@ -27,7 +27,6 @@ from common import i18n
 try:
 	PREFERRED_ENCODING = locale.getpreferredencoding()
 except:
-	sys.exc_clear()
 	PREFERRED_ENCODING = 'UTF-8'
 
 def send_error(error_message):