upstream/ipython Files · examples/utils/cwd_prompt.py

FIX: bare functions in callback registry on bogus unregister...

FIX: bare functions in callback registry on bogus unregister added checking for the case where the callback was wrapped by backcall, however if there are un-wrapped functions registered and a non-registered function is attempted to be unregistered then this fails by raise an uncaught AttributeError.

Matthias Bussonnier - - Load All Authors

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             cwd_prompt.py
        
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      """This is an example that shows how to create new prompts for IPython

      """

      from IPython.terminal.prompts import Prompts, Token

      import os

      class MyPrompt(Prompts):

           def in_prompt_tokens(self, cli=None):

               return [(Token, os.getcwd()),

                       (Token.Prompt, '>>>')]

      def load_ipython_extension(shell):

          new_prompts = MyPrompt(shell)

          new_prompts.old_prompts = shell.prompts

          shell.prompts = new_prompts

      def unload_ipython_extension(shell):

          if not hasattr(shell.prompts, 'old_prompts'):

              print("cannot unload")

          else:

              shell.prompts = shell.prompts.old_prompts

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				"""This is an example that shows how to create new prompts for IPython
				"""

				from IPython.terminal.prompts import Prompts, Token
				import os

				class MyPrompt(Prompts):

				def in_prompt_tokens(self, cli=None):
				return [(Token, os.getcwd()),
				(Token.Prompt, '>>>')]

				def load_ipython_extension(shell):
				new_prompts = MyPrompt(shell)
				new_prompts.old_prompts = shell.prompts
				shell.prompts = new_prompts

				def unload_ipython_extension(shell):
				if not hasattr(shell.prompts, 'old_prompts'):
				print("cannot unload")
				else:
				shell.prompts = shell.prompts.old_prompts