upstream/ipython Files · examples/IPython Kernel/ipython-get-history.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.

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      #!/usr/bin/env python

      """Extract a session from the IPython input history.

      Usage:

        ipython-get-history.py sessionnumber [outputfile]

      If outputfile is not given, the relevant history is written to stdout. If

      outputfile has a .py extension, the translated history (without IPython's

      special syntax) will be extracted.

      Example:

        ./ipython-get-history.py 57 record.ipy

      This script is a simple demonstration of HistoryAccessor. It should be possible

      to build much more flexible and powerful tools to browse and pull from the

      history database.

      """

      import sys

      from pathlib import Path

      from IPython.core.history import HistoryAccessor

      session_number = int(sys.argv[1])

      if len(sys.argv) > 2:

          filepath = Path(sys.argv[2])

          dest = open(filepath, "w", encoding="utf-8")

          raw = not filepath.name.endswith(".py")

      else:

          dest = sys.stdout

          raw = True

      with dest:

          dest.write("# coding: utf-8\n")

          # Profiles other than 'default' can be specified here with a profile= argument:

          hist = HistoryAccessor()

          for session, lineno, cell in hist.get_range(session=session_number, raw=raw):

            dest.write(cell + '\n')

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				#!/usr/bin/env python
				"""Extract a session from the IPython input history.

				Usage:
				ipython-get-history.py sessionnumber [outputfile]

				If outputfile is not given, the relevant history is written to stdout. If
				outputfile has a .py extension, the translated history (without IPython's
				special syntax) will be extracted.

				Example:
				./ipython-get-history.py 57 record.ipy


				This script is a simple demonstration of HistoryAccessor. It should be possible
				to build much more flexible and powerful tools to browse and pull from the
				history database.
				"""
				import sys
				from pathlib import Path

				from IPython.core.history import HistoryAccessor

				session_number = int(sys.argv[1])
				if len(sys.argv) > 2:
				filepath = Path(sys.argv[2])
				dest = open(filepath, "w", encoding="utf-8")
				raw = not filepath.name.endswith(".py")
				else:
				dest = sys.stdout
				raw = True

				with dest:
				dest.write("# coding: utf-8\n")

				# Profiles other than 'default' can be specified here with a profile= argument:
				hist = HistoryAccessor()

				for session, lineno, cell in hist.get_range(session=session_number, raw=raw):
				dest.write(cell + '\n')