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Regression in help(sqlite3) between Python 3.10.8 and Python 3.11.0 #99003
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I get a different traceback on my Windows machine on(EDIT: my traceback is the same onmainmainafter rebuilding CPython locally.)Reproduced on
main.This bisects to a3d4d15 on
main, and 5d3f2fb on the 3.11 branch. That's these PRs:- gh-95132: Correctly relay *args and **kwds from sqlite3.connect to factory #95146
- [3.11] gh-95132: Correctly relay *args and **kwds from sqlite3.connect to factory (GH-95146) #95158
Both PRs are linked to:
Cc. @erlend-aasland
Thanks for the report @tom-kacvinsky, and thanks for the bisect @AlexWaygood! I'll look into it.
Reacted by Alex Waygood and tom-kacvinskyI was curious, so I ran the following script to see if
help(module)failed for any other stdlib modules:Click to see the script
import io import sys import warnings from contextlib import redirect_stdout warnings.filterwarnings("ignore", category=DeprecationWarning) bad_modules, unimportable_modules = [], [] for name in sys.stdlib_module_names: if name in {"antigravity", "this"}: continue # no try: mod = __import__(name) except: unimportable_modules.append(name) continue with redirect_stdout(io.StringIO()): try: help(mod) except: bad_modules.append(name) print(f"Modules with broken help: {bad_modules}") print(f"Unimportable modules: {unimportable_modules}")
Results on my Windows machine:
Modules with broken help: ['_ssl', 'sqlite3', '_sqlite3'] Unimportable modules: ['resource', 'crypt', 'curses', 'posix', 'grp', '_crypt', '_scproxy', '_posixshmem', 'readline', 'tty', 'pwd', 'nis', '_gdbm', '_dbm', 'termios', 'syslog', '_posixsubprocess', 'pty', 'fcntl', '_curses', 'spwd', '_curses_panel', 'ossaudiodev']python -c "import _ssl; help(_ssl)"crashes with a very similar traceback:Click to see the traceback
C:\Users\alexw\coding\cpython>python -c "import _ssl; help(_ssl)" Running Debug|x64 interpreter... Traceback (most recent call last): File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2207, in wrap_value value = eval(s, module_dict) ^^^^^^^^^^^^^^^^^^^^ File "<string>", line 1, in <module> NameError: name 'Encoding' is not defined During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2210, in wrap_value value = eval(s, sys_module_dict) ^^^^^^^^^^^^^^^^^^^^^^^^ File "<string>", line 1, in <module> NameError: name 'Encoding' is not defined. Did you mean: 'encodings'? During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\Users\alexw\coding\cpython\Lib\_sitebuiltins.py", line 103, in __call__ return pydoc.help(*args, **kwds) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 2001, in __call__ self.help(request) File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 2062, in help else: doc(request, 'Help on %s:', output=self._output) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1783, in doc pager(render_doc(thing, title, forceload)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1777, in render_doc return title % desc + '\n\n' + renderer.document(object, name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 479, in document if inspect.ismodule(object): return self.docmodule(*args) ^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1268, in docmodule contents.append(self.document(value, key, name)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 480, in document if inspect.isclass(object): return self.docclass(*args) ^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1434, in docclass attrs = spill("Methods %s:\n" % tag, attrs, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1383, in spill push(self.document(value, ^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 481, in document if inspect.isroutine(object): return self.docroutine(*args) ^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\pydoc.py", line 1493, in docroutine signature = inspect.signature(object) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 3264, in signature return Signature.from_callable(obj, follow_wrapped=follow_wrapped, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 3008, in from_callable return _signature_from_callable(obj, sigcls=cls, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2500, in _signature_from_callable return _signature_from_builtin(sigcls, obj, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2312, in _signature_from_builtin return _signature_fromstr(cls, func, s, skip_bound_arg) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2260, in _signature_fromstr p(name, default) File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2242, in p default_node = RewriteSymbolics().visit(default_node) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\ast.py", line 413, in visit return visitor(node) ^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2229, in visit_Attribute return wrap_value(value) ^^^^^^^^^^^^^^^^^ File "C:\Users\alexw\coding\cpython\Lib\inspect.py", line 2212, in wrap_value raise RuntimeError() RuntimeErrorReacted by Erlend E. AaslandWith the same script, these modules on Linux have problems with
help(<module>)$ /home/PUBLIC/tjk/python-3.11.0/bin/python3 help.py Modules with broken help: ['sqlite3', '_sqlite3', '_ssl'] Unimportable modules: ['turtle', 'winsound', 'tkinter', 'msilib', 'nt', '_msi', '_tkinter', 'msvcrt', 'winreg', '_winapi', '_overlapped', '_scproxy']Some of the ones that don't import are ones that either don't apply to Linux, or I didn't build -
tkinter, for instance.Reacted by Alex Waygood@AlexWaygood: Nice. A possible enhancement for the check-modules script that's run at the end of the build?
Reacted by Alex WaygoodPart of the problem is inconsistencies in the docstrings themselves. I've fixed these, but the problems still persist. I suspect a bug in
inspect.See also gh-83685
- Reacted by Alex Waygood
Duplicate of gh-83685
- marked this as a duplicate of inspect.signature throws RuntimeError on select.epoll.register #83685
on Nov 13, 2022
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Bug report
When running the Python interactive interpreter as follows
Python 3.10.8 displays the help for
sqlite3, but 3.11.0 gives a trackbackYour environment
Built with GCC 12.1.0 and sqlite3 3.37.2