upstream/ipython Files · IPython/utils/ulinecache.py

Remove the "autoedit_syntax" feature....

Remove the "autoedit_syntax" feature. IPython used to (a long time ago, in a galaxy far far away) have the ability to automatically open an editor in case a wild syntax error appears. The configuration option to enable that was not working for a few years, and apparently we by mistake re enabled it, to discover that the feature is actually broken. So this plainly remove the code to support this feature, at the exception of the `fix_error_editor` hook. Indeed it is public API, so for now as it seem to be used only for this feature, we'll just raise a UserWarning (there is roughly 0 chance of this being tested as it's used mostly interactively, so DeprecationWarnings would be unseen). We'll remove later if no complaints Closes

Thomas Kluyver - - Load All Authors

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             ulinecache.py
        
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      """Wrapper around linecache which decodes files to unicode according to PEP 263.

      This is only needed for Python 2 - linecache in Python 3 does the same thing

      itself.

      """

      import functools

      import linecache

      import sys

      from IPython.utils import py3compat

      from IPython.utils import openpy

      if py3compat.PY3:

          getline = linecache.getline

          # getlines has to be looked up at runtime, because doctests monkeypatch it.

          @functools.wraps(linecache.getlines)

          def getlines(filename, module_globals=None):

              return linecache.getlines(filename, module_globals=module_globals)

      else:

          def getlines(filename, module_globals=None):

              """Get the lines (as unicode) for a file from the cache.

              Update the cache if it doesn't contain an entry for this file already."""

              filename = py3compat.cast_bytes(filename, sys.getfilesystemencoding())

              lines = linecache.getlines(filename, module_globals=module_globals)

              # The bits we cache ourselves can be unicode.

              if (not lines) or isinstance(lines[0], py3compat.unicode_type):

                  return lines

              readline = openpy._list_readline(lines)

              try:

                  encoding, _ = openpy.detect_encoding(readline)

              except SyntaxError:

                  encoding = 'ascii'

              return [l.decode(encoding, 'replace') for l in lines]

          # This is a straight copy of linecache.getline

          def getline(filename, lineno, module_globals=None):

              lines = getlines(filename, module_globals)

              if 1 <= lineno <= len(lines):

                  return lines[lineno-1]

              else:

                  return ''

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				"""Wrapper around linecache which decodes files to unicode according to PEP 263.

				This is only needed for Python 2 - linecache in Python 3 does the same thing
				itself.
				"""
				import functools
				import linecache
				import sys

				from IPython.utils import py3compat
				from IPython.utils import openpy

				if py3compat.PY3:
				getline = linecache.getline

				# getlines has to be looked up at runtime, because doctests monkeypatch it.
				@functools.wraps(linecache.getlines)
				def getlines(filename, module_globals=None):
				return linecache.getlines(filename, module_globals=module_globals)

				else:
				def getlines(filename, module_globals=None):
				"""Get the lines (as unicode) for a file from the cache.
				Update the cache if it doesn't contain an entry for this file already."""
				filename = py3compat.cast_bytes(filename, sys.getfilesystemencoding())
				lines = linecache.getlines(filename, module_globals=module_globals)

				# The bits we cache ourselves can be unicode.
				if (not lines) or isinstance(lines[0], py3compat.unicode_type):
				return lines

				readline = openpy._list_readline(lines)
				try:
				encoding, _ = openpy.detect_encoding(readline)
				except SyntaxError:
				encoding = 'ascii'
				return [l.decode(encoding, 'replace') for l in lines]

				# This is a straight copy of linecache.getline
				def getline(filename, lineno, module_globals=None):
				lines = getlines(filename, module_globals)
				if 1 <= lineno <= len(lines):
				return lines[lineno-1]
				else:
				return ''