help(hashlib.blake2b) causes RuntimeError in 3.7 #78752

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1. mcdallas commented on Sep 3, 2018

   

   mcdallasmannequin

   on Sep 3, 2018

   MannequinAuthor

   More actions

   $ python3.7                                                                       
   Python 3.7.0 (default, Jul 23 2018, 20:22:55)
   [Clang 9.1.0 (clang-902.0.39.2)] on darwin
   Type "help", "copyright", "credits" or "license" for more information.
   >>> import hashlib
   >>> help(hashlib.blake2b)
   Traceback (most recent call last):
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 1996, in wrap_value
       value = eval(s, module_dict)
     File "<string>", line 1, in <module>
   NameError: name '_blake2b' is not defined
   
   During handling of the above exception, another exception occurred:
   
   Traceback (most recent call last):
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 1999, in wrap_value
       value = eval(s, sys_module_dict)
     File "<string>", line 1, in <module>
   NameError: name '_blake2b' is not defined
   
   During handling of the above exception, another exception occurred:
   
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/_sitebuiltins.py", line 103, in __call__
       return pydoc.help(*args, **kwds)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 1895, in __call__
       self.help(request)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 1954, in help
       else: doc(request, 'Help on %s:', output=self._output)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 1674, in doc
       pager(render_doc(thing, title, forceload))
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 1667, in render_doc
       return title % desc + '\n\n' + renderer.document(object, name)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 386, in document
       if inspect.isclass(object): return self.docclass(*args)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pydoc.py", line 1237, in docclass
       signature = inspect.signature(object)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 3070, in signature
       return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2820, in from_callable
       follow_wrapper_chains=follow_wrapped)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2343, in _signature_from_callable
       return _signature_fromstr(sigcls, obj, text_sig)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2067, in _signature_fromstr
       p(name, default)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2037, in p
       default_node = RewriteSymbolics().visit(default_node)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ast.py", line 262, in visit
       return visitor(node)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2024, in visit_Attribute
       return wrap_value(value)
     File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 2001, in wrap_value
       raise RuntimeError()
   RuntimeError

   same for blake2s
2. mcdallas

   added

   3.7 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Sep 3, 2018
3. serhiy-storchaka commented on Sep 3, 2018

   

   serhiy-storchaka

   on Sep 3, 2018

   Member

   More actions

   It should be fixed in bpo-33729.
4. serhiy-storchaka

   closed this as completedon Sep 3, 2018
5. ezio-melotti

   transferred this issue fromon Apr 10, 2022