upstream/ipython Files · IPython/core/payload.py

Store timestamps for modules to autoreload...

Store timestamps for modules to autoreload Closes gh-4127 At present, autoreload compares the timestamps on .py and .pyc files. However, this can fail in a couple of ways (see gh-4127). With this change, it caches the mtime of the .py file when we loaded it. Some extra complexity is needed to store the mtime as soon as possible - we scan sys.modules when autoreload is loaded, and register a post_execute hook to check for newly imported modules after each cell.

Pablo de Oliveira - - Load All Authors

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      # -*- coding: utf-8 -*-

      """Payload system for IPython.

      Authors:

      * Fernando Perez

      * Brian Granger

      """

      #-----------------------------------------------------------------------------

      #       Copyright (C) 2008-2011 The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      from IPython.config.configurable import Configurable

      from IPython.utils.traitlets import List

      #-----------------------------------------------------------------------------

      # Main payload class

      #-----------------------------------------------------------------------------

      class PayloadManager(Configurable):

          _payload = List([])

          def write_payload(self, data, single=True):

              """Include or update the specified `data` payload in the PayloadManager.

              If a previous payload with the same source exists and `single` is True,

              it will be overwritten with the new one.

              """

              if not isinstance(data, dict):

                  raise TypeError('Each payload write must be a dict, got: %r' % data)

              if single and 'source' in data:

                  source = data['source']

                  for i, pl in enumerate(self._payload):

                      if 'source' in pl and pl['source'] == source:

                          self._payload[i] = data

                          return

              self._payload.append(data)

          def read_payload(self):

              return self._payload

          def clear_payload(self):

              self._payload = []

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				# -- coding: utf-8 --
				"""Payload system for IPython.

				Authors:

				* Fernando Perez
				* Brian Granger
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2011 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				from IPython.config.configurable import Configurable
				from IPython.utils.traitlets import List

				#-----------------------------------------------------------------------------
				# Main payload class
				#-----------------------------------------------------------------------------

				class PayloadManager(Configurable):

				_payload = List([])

				def write_payload(self, data, single=True):
				"""Include or update the specified `data` payload in the PayloadManager.

				If a previous payload with the same source exists and `single` is True,
				it will be overwritten with the new one.
				"""

				if not isinstance(data, dict):
				raise TypeError('Each payload write must be a dict, got: %r' % data)

				if single and 'source' in data:
				source = data['source']
				for i, pl in enumerate(self._payload):
				if 'source' in pl and pl['source'] == source:
				self._payload[i] = data
				return

				self._payload.append(data)

				def read_payload(self):
				return self._payload

				def clear_payload(self):
				self._payload = []