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

Use environment variable to identify conda / mamba (#14515)...

Use environment variable to identify conda / mamba (#14515) Conda and mamba both set an environment variable which refers to the base environment's executable path, use that in preference to less reliable methods, but fall back on the other approaches if unable to locate the executable this way. Additionally, change the search to look for the bare command name rather than the command within the top level of the active environment, I'm dubious this approach works with any current conda / mamba version which usually place their executable links in a `condabin` directory or elsewhere not at the same level as the Python executable. I believe this will also address https://github.com/ipython/ipython/issues/14350, which I'm also seeing in a Windows context where the regex fails to parse and causes a traceback.

Srinivas Reddy Thatiparthy - - Load All Authors

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      """Support for interactive macros in IPython"""

      #*****************************************************************************

      #       Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>

      #

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

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

      #*****************************************************************************

      import re

      from IPython.utils.encoding import DEFAULT_ENCODING

      coding_declaration = re.compile(r"#\s*coding[:=]\s*([-\w.]+)")

      class Macro(object):

          """Simple class to store the value of macros as strings.

          Macro is just a callable that executes a string of IPython

          input when called.

          """

          def __init__(self,code):

              """store the macro value, as a single string which can be executed"""

              lines = []

              enc = None

              for line in code.splitlines():

                  coding_match = coding_declaration.match(line)

                  if coding_match:

                      enc = coding_match.group(1)

                  else:

                      lines.append(line)

              code = "\n".join(lines)

              if isinstance(code, bytes):

                  code = code.decode(enc or DEFAULT_ENCODING)

              self.value = code + '\n'

          def __str__(self):

              return self.value

          def __repr__(self):

              return 'IPython.macro.Macro(%s)' % repr(self.value)

          def __getstate__(self):

              """ needed for safe pickling via %store """

              return {'value': self.value}

          def __add__(self, other):

              if isinstance(other, Macro):

                  return Macro(self.value + other.value)

              elif isinstance(other, str):

                  return Macro(self.value + other)

              raise TypeError

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				"""Support for interactive macros in IPython"""

				#*****************************************************************************
				# Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#*****************************************************************************

				import re

				from IPython.utils.encoding import DEFAULT_ENCODING

				coding_declaration = re.compile(r"#\scoding[:=]\s([-\w.]+)")

				class Macro(object):
				"""Simple class to store the value of macros as strings.

				Macro is just a callable that executes a string of IPython
				input when called.
				"""

				def __init__(self,code):
				"""store the macro value, as a single string which can be executed"""
				lines = []
				enc = None
				for line in code.splitlines():
				coding_match = coding_declaration.match(line)
				if coding_match:
				enc = coding_match.group(1)
				else:
				lines.append(line)
				code = "\n".join(lines)
				if isinstance(code, bytes):
				code = code.decode(enc or DEFAULT_ENCODING)
				self.value = code + '\n'

				def __str__(self):
				return self.value

				def __repr__(self):
				return 'IPython.macro.Macro(%s)' % repr(self.value)

				def __getstate__(self):
				""" needed for safe pickling via %store """
				return {'value': self.value}

				def __add__(self, other):
				if isinstance(other, Macro):
				return Macro(self.value + other.value)
				elif isinstance(other, str):
				return Macro(self.value + other)
				raise TypeError