upstream/ipython Files · IPython/quarantine/ipy_server.py

Backport PR : Unicode content crashes the pager (console)...

Backport PR : Unicode content crashes the pager (console) We've run into an interesting bug in the astropy project. https://github.com/astropy/astropy/issues/600 When displaying a docstring that contains Unicode and is also long enough that it gets sent to the pager it fails since the docstring can't be sent to the pager as ascii. This crashes in the middle of sending content to the pager, so the shell ends up in an inconsistent state and stops echoing the keyboard etc. The fix (attached) is merely to encode the content sent to the pager in the same encoding as the terminal (`sys.stdout.encoding`). Strictly speaking, this isn't always the right thing to do, since the pager may be configured to expect a different encoding than the terminal, but that is sort of an irrational way to configure a machine... ;) For example, `less`, in the absence of any special environment variables to tell it otherwise, uses the standard `LC*` environment variables to determine what to do, which should be the same mechanism the terminal also uses by default. If anyone can suggest a better fix, I'm all for it. Perhaps it should be configurable, defaulting to `sys.stdout.encoding`?

Bernardo B. Marques - - Load All Authors

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      """ Simple TCP socket server that executes statements in IPython instance.

      Usage:

      import ipy_server

      ipy_server.serve_thread(16455)

      Now, to execute the statements in this ipython instance, open a TCP socket

      (port 16455), write out the statements, and close the socket.

      You can use e.g. "telnet localhost 16455" or a script to do this.

      This is a bit like 'M-x server-start" or gnuserv in the emacs world.

      """

      from IPython.core import ipapi

      ip = ipapi.get()

      import SocketServer

      # user-accessible port

      PORT = 8099

      class IPythonRequestHandler(SocketServer.StreamRequestHandler):

          def handle(self):

              #print "connection from", self.client_address

              inp = self.rfile.read().replace('\r\n','\n')

              #print "Execute",inp

              ip.runlines(inp)

      def serve(port = PORT):

          server = SocketServer.TCPServer(("", port), IPythonRequestHandler)

          print "ipy_server on TCP port", port

          server.serve_forever()

      def serve_thread(port = PORT):

          import thread

          thread.start_new_thread(serve, (port,))

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				""" Simple TCP socket server that executes statements in IPython instance.

				Usage:

				import ipy_server
				ipy_server.serve_thread(16455)

				Now, to execute the statements in this ipython instance, open a TCP socket
				(port 16455), write out the statements, and close the socket.
				You can use e.g. "telnet localhost 16455" or a script to do this.

				This is a bit like 'M-x server-start" or gnuserv in the emacs world.

				"""

				from IPython.core import ipapi
				ip = ipapi.get()

				import SocketServer

				# user-accessible port
				PORT = 8099

				class IPythonRequestHandler(SocketServer.StreamRequestHandler):
				def handle(self):
				#print "connection from", self.client_address
				inp = self.rfile.read().replace('\r\n','\n')
				#print "Execute",inp
				ip.runlines(inp)

				def serve(port = PORT):
				server = SocketServer.TCPServer(("", port), IPythonRequestHandler)
				print "ipy_server on TCP port", port
				server.serve_forever()

				def serve_thread(port = PORT):
				import thread
				thread.start_new_thread(serve, (port,))