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gh-52161: Enhance Cmd support for docstrings #110987

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Merged
merged 4 commits into from
Jan 3, 2024
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gh-52161: Enhance Cmd support for docstrings #110987

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e7ff2e9
Enhance Cmd support for docstrings
fipachu Oct 17, 2023
a7e3480
📜🤖 Added by blurb_it.
blurb-it[bot] Oct 17, 2023
4b4ed77
Reformat whitespace to comply with PEP 8
fipachu Jan 2, 2024
cf2fee1
Undo formatting changes in preexisting code
fipachu Jan 3, 2024
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8 changes: 6 additions & 2 deletions Lib/cmd.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,13 +42,16 @@
functions respectively.
"""

import string, sys
import inspect
import string
import sys

__all__ = ["Cmd"]

PROMPT = '(Cmd) '
IDENTCHARS = string.ascii_letters + string.digits + '_'


class Cmd:
"""A simple framework for writing line-oriented command interpreters.

Expand Down Expand Up @@ -297,7 +300,8 @@ def do_help(self, arg):
func = getattr(self, 'help_' + arg)
except AttributeError:
try:
doc=getattr(self, 'do_' + arg).__doc__
doc = getattr(self, 'do_' + arg).__doc__
doc = inspect.cleandoc(doc)
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@skirpichev skirpichev Jan 3, 2024

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IIUIC, this line is the actual patch

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@fipachu fipachu Jan 3, 2024

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Yeah, this and, obviously, the additional import

if doc:
self.stdout.write("%s\n"%str(doc))
return
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2023-10-17-16-11-03.gh-issue-52161.WBYyCJ.rst
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@@ -0,0 +1,2 @@
:meth:`cmd.Cmd.do_help` now cleans docstrings with :func:`inspect.cleandoc`
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@fipachu fipachu Oct 17, 2023

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I don't know if ":meth:cmd.Cmd.do_help" is correct, there definitely is no cmd.Cmd.do_help anchor in the documentation. Maybe I'd need to update the documentation to give do_help a separate section. I'm open to feedback here and in general.

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@gvanrossum gvanrossum Jan 3, 2024

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It seems to work. Let's not worry about it.

before writing them. Patch by Filip Łapkiewicz.