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Python3.11: invalid help query raises an ImportError #98374

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qexat opened this issue Oct 18, 2022 · 3 comments
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Python3.11: invalid help query raises an ImportError #98374

qexat opened this issue Oct 18, 2022 · 3 comments
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3.11 only security fixes 3.12 bugs and security fixes stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error

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@qexat
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qexat commented Oct 18, 2022 •
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Bug report

Running this on Python 3.11 REPL:

>>> help("invalid query")

Raises the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen _sitebuiltins>", line 103, in __call__
  File "/usr/lib/python3.11/pydoc.py", line 2001, in __call__
    self.help(request)
  File "/usr/lib/python3.11/pydoc.py", line 2057, in help
    elif request: doc(request, 'Help on %s:', output=self._output)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/pydoc.py", line 1784, in doc
    pager(render_doc(thing, title, forceload))
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/pydoc.py", line 1758, in render_doc
    object, name = resolve(thing, forceload)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/pydoc.py", line 1744, in resolve
    raise ImportError('''\
ImportError: No Python documentation found for 'invalid query'.
Use help() to get the interactive help utility.
Use help(str) for help on the str class.

Python 3.10.8 (and most probably any 3.10.*) simply prints this:

No Python documentation found for 'invalid query'.
Use help() to get the interactive help utility.
Use help(str) for help on the str class.

Your environment

  • CPython versions tested on: 3.11.0, 3.10.8
  • Operating system and architecture: EndeavourOS, kernel: 6.0.1-arch2-1 (64-bit)

Apparently, this is due to commit 8868d48712aee2b490efaf60bed8dfe9fb14d6b7 (thanks to @asottile for finding it).

Is it expected behavior though?
@qexat qexat added the type-bug An unexpected behavior, bug, or error label Oct 18, 2022
@iritkatriel iritkatriel mentioned this issue Oct 18, 2022
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@iritkatriel
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Possibly due to #27868.

@iritkatriel iritkatriel added 3.11 only security fixes 3.12 bugs and security fixes needs backport to 3.11 only security fixes stdlib Python modules in the Lib dir labels Oct 18, 2022
@qexat
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qexat commented Oct 18, 2022

Possibly due to #27868.

Indeed, the commit I mention was present in this PR.

corona10 added a commit to corona10/cpython that referenced this issue Oct 19, 2022
@corona10
pythongh-98374: Suppress ImportError for invalid query for help() com…
b2e4188 
…mand.
@bedevere-bot bedevere-bot mentioned this issue Oct 19, 2022
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corona10 added a commit to corona10/cpython that referenced this issue Oct 19, 2022
@corona10
pythongh-98374: Suppress ImportError for invalid query for help() com…
1b03435 
…mand.
corona10 added a commit to corona10/cpython that referenced this issue Oct 19, 2022
@corona10
pythongh-98374: Suppress ImportError for invalid query for help() com…
a4d5b80 
…mand.
@bedevere-bot bedevere-bot mentioned this issue Oct 19, 2022
Merged
corona10 added a commit that referenced this issue Oct 20, 2022
@corona10
gh-98374: Suppress ImportError for invalid query for help() command. (g…
4156b2f 
…h-98450)
@bedevere-bot bedevere-bot mentioned this issue Oct 20, 2022
Merged
corona10 added a commit to corona10/cpython that referenced this issue Oct 20, 2022
@corona10
[3.11] pythongh-98374: Suppress ImportError for invalid query for hel…
697e1fc 
…p() command. (pythongh-98450)

(cherry picked from commit 4156b2f)

Co-authored-by: Dong-hee Na <donghee.na@python.org>
corona10 added a commit that referenced this issue Oct 20, 2022
@corona10
[3.11] gh-98374: Suppress ImportError for invalid query for help() co… (
e2af980 
gh-98472)
@corona10 corona10 removed the needs backport to 3.11 only security fixes label Oct 20, 2022
carljm added a commit to carljm/cpython that referenced this issue Oct 20, 2022
@carljm
Merge branch 'main' into typewatch
8bba5da 
* main: (40 commits)
  pythongh-98461: Fix source location in comprehensions bytecode (pythonGH-98464)
  pythongh-98421: Clean Up PyObject_Print (pythonGH-98422)
  pythongh-98360: multiprocessing now spawns children on Windows with correct argv[0] in virtual environments (pythonGH-98462)
  CODEOWNERS: Become a typing code owner (python#98480)
  [doc] Improve logging cookbook example. (pythonGH-98481)
  Add more tkinter.Canvas tests (pythonGH-98475)
  pythongh-95023: Added os.setns and os.unshare functions (python#95046)
  pythonGH-98363: Presize the list for batched() (pythonGH-98419)
  pythongh-98374: Suppress ImportError for invalid query for help() command. (pythongh-98450)
  typing tests: `_overload_dummy` raises `NotImplementedError`, not `RuntimeError` (python#98351)
  pythongh-98354: Add unicode check for 'name' attribute in _imp_create_builtin (pythonGH-98412)
  pythongh-98257: Make _PyEval_SetTrace() reentrant (python#98258)
  pythongh-98414: py.exe launcher does not use defaults for -V:company/ option (pythonGH-98460)
  pythongh-98417: Store int_max_str_digits on the Interpreter State (pythonGH-98418)
  Doc: Remove title text from internal links (python#98409)
  [doc] Refresh the venv introduction documentation, and correct the statement about VIRTUAL_ENV (pythonGH-98350)
  Docs: Bump sphinx-lint and fix unbalanced inline literal markup (python#98441)
  pythongh-92886: Replace assertion statements in `handlers.BaseHandler` to support running with optimizations (`-O`) (pythonGH-93231)
  pythongh-92886: Fix tests that fail when running with optimizations (`-O`) in `_test_multiprocessing.py` (pythonGH-93233)
  pythongh-92886: Fix tests that fail when running with optimizations (`-O`) in `test_py_compile.py` (pythonGH-93235)
  ...
@terryjreedy
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terryjreedy commented Jun 12, 2023 •
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(EDIT) This fix did not catch all cases. See #102541 for help()...help> invalid giving a traceback ending in the same place with the same result.

@terryjreedy terryjreedy mentioned this issue Jul 2, 2023
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