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Deep reload throws a NonImplementedError #10235

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Deep reload throws a NonImplementedError#10235
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@Perlence

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@Perlence
Perlence
opened on Feb 2, 2017

I tried to deep reload module types, but got the following error. This kind of error does not occur in Python 3.4.2, but occurs in Python 3.5.2 and Python 3.6.0.

Long and winding traceback... 
Python 3.5.2 (default, Oct 31 2016, 21:20:07) 
Type "copyright", "credits" or "license" for more information.

IPython 5.2.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: import types
In [2]: from IPython.lib.deepreload import reload
In [3]: reload(types)
Reloading functools
Reloading _functools
Reloading abc
Reloading _weakrefset
Reloading _weakref
Reloading collections
Reloading _collections_abc
Reloading operator
Reloading _operator
Reloading keyword
Reloading heapq
Reloading _heapq
Reloading importlib
Reloading _imp
Reloading _frozen_importlib
Reloading _frozen_importlib_external
Reloading types
---------------------------------------------------------------------------
NotImplementedError                       Traceback (most recent call last)
<ipython-input-3-2c2c5ada3170> in <module>()
----> 1 reload(types)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in reload(module, exclude)
    340     try:
    341         with replace_import_hook(deep_import_hook):
--> 342             return deep_reload_hook(module)
    343     finally:
    344         found_now = {}

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/contextlib.py in __exit__(self, type, value, traceback)
     75                 value = type()
     76             try:
---> 77                 self.gen.throw(type, value, traceback)
     78                 raise RuntimeError("generator didn't stop after throw()")
     79             except StopIteration as exc:

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in replace_import_hook(new_import)
     50     builtin_mod.__import__ = new_import
     51     try:
---> 52         yield
     53     finally:
     54         builtin_mod.__import__ = saved_import

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in reload(module, exclude)
    340     try:
    341         with replace_import_hook(deep_import_hook):
--> 342             return deep_reload_hook(module)
    343     finally:
    344         found_now = {}

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_reload_hook(m)
    309 
    310     try:
--> 311         newm = imp.load_module(name, fp, filename, stuff)
    312     except:
    313          # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    232         raise ValueError(msg)
    233     elif type_ == PY_SOURCE:
--> 234         return load_source(name, filename, file)
    235     elif type_ == PY_COMPILED:
    236         return load_compiled(name, filename, file)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_source(name, pathname, file)
    168     spec = util.spec_from_file_location(name, pathname, loader=loader)
    169     if name in sys.modules:
--> 170         module = _exec(spec, sys.modules[name])
    171     else:
    172         module = _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap_external.py in exec_module(self, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/types.py in <module>()
    164 
    165 
--> 166 import functools as _functools
    167 import collections.abc as _collections_abc
    168 

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    232         raise ValueError(msg)
    233     elif type_ == PY_SOURCE:
--> 234         return load_source(name, filename, file)
    235     elif type_ == PY_COMPILED:
    236         return load_compiled(name, filename, file)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_source(name, pathname, file)
    168     spec = util.spec_from_file_location(name, pathname, loader=loader)
    169     if name in sys.modules:
--> 170         module = _exec(spec, sys.modules[name])
    171     else:
    172         module = _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap_external.py in exec_module(self, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/functools.py in <module>()
     19     pass
     20 from abc import get_cache_token
---> 21 from collections import namedtuple
     22 from types import MappingProxyType
     23 from weakref import WeakKeyDictionary

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    242             return load_dynamic(name, filename, file)
    243     elif type_ == PKG_DIRECTORY:
--> 244         return load_package(name, filename)
    245     elif type_ == C_BUILTIN:
    246         return init_builtin(name)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_package(name, path)
    212                                         submodule_search_locations=[])
    213     if name in sys.modules:
--> 214         return _exec(spec, sys.modules[name])
    215     else:
    216         return _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap_external.py in exec_module(self, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/collections/__init__.py in <module>()
     27 from keyword import iskeyword as _iskeyword
     28 import sys as _sys
---> 29 import heapq as _heapq
     30 from _weakref import proxy as _proxy
     31 from itertools import repeat as _repeat, chain as _chain, starmap as _starmap

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    232         raise ValueError(msg)
    233     elif type_ == PY_SOURCE:
--> 234         return load_source(name, filename, file)
    235     elif type_ == PY_COMPILED:
    236         return load_compiled(name, filename, file)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_source(name, pathname, file)
    168     spec = util.spec_from_file_location(name, pathname, loader=loader)
    169     if name in sys.modules:
--> 170         module = _exec(spec, sys.modules[name])
    171     else:
    172         module = _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap_external.py in exec_module(self, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/heapq.py in <module>()
    585 # If available, use C implementation
    586 try:
--> 587     from _heapq import *
    588 except ImportError:
    589     pass

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    240                 return load_dynamic(name, filename, opened_file)
    241         else:
--> 242             return load_dynamic(name, filename, file)
    243     elif type_ == PKG_DIRECTORY:
    244         return load_package(name, filename)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_dynamic(name, path, file)
    333         Load an extension module.
    334         """
--> 335         import importlib.machinery
    336         loader = importlib.machinery.ExtensionFileLoader(name, path)
    337 

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    242             return load_dynamic(name, filename, file)
    243     elif type_ == PKG_DIRECTORY:
--> 244         return load_package(name, filename)
    245     elif type_ == C_BUILTIN:
    246         return init_builtin(name)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_package(name, path)
    212                                         submodule_search_locations=[])
    213     if name in sys.modules:
--> 214         return _exec(spec, sys.modules[name])
    215     else:
    216         return _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap_external.py in exec_module(self, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/__init__.py in <module>()
     55 # dependencies and startup overhead minimisation permitting :)
     56 
---> 57 import types
     58 import warnings
     59 

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in deep_import_hook(name, globals, locals, fromlist, level)
    250     parent, buf = get_parent(globals, level)
    251 
--> 252     head, name, buf = load_next(parent, None if level < 0 else parent, name, buf)
    253 
    254     tail = head

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in load_next(mod, altmod, name, buf)
    154     buf += subname
    155 
--> 156     result = import_submodule(mod, subname, buf)
    157     if result is None and mod != altmod:
    158         result = import_submodule(altmod, subname, subname)

/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython/lib/deepreload.py in import_submodule(mod, subname, fullname)
    199 
    200         try:
--> 201             m = imp.load_module(fullname, fp, filename, stuff)
    202         except:
    203             # load_module probably removed name from modules because of

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_module(name, file, filename, details)
    232         raise ValueError(msg)
    233     elif type_ == PY_SOURCE:
--> 234         return load_source(name, filename, file)
    235     elif type_ == PY_COMPILED:
    236         return load_compiled(name, filename, file)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/imp.py in load_source(name, pathname, file)
    168     spec = util.spec_from_file_location(name, pathname, loader=loader)
    169     if name in sys.modules:
--> 170         module = _exec(spec, sys.modules[name])
    171     else:
    172         module = _load(spec)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _exec(spec, module)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in _init_module_attrs(spec, module, override)

/home/sviatoslav/.pythonz/pythons/CPython-3.5.2/lib/python3.5/importlib/_bootstrap.py in cached(self)

NotImplementedError:

System information:

$ python -c "import IPython; print(IPython.sys_info())"
{'commit_hash': 'be4827b',
 'commit_source': 'installation',
 'default_encoding': 'UTF-8',
 'ipython_path': '/home/sviatoslav/workspace/py35/lib/python3.5/site-packages/IPython',
 'ipython_version': '5.2.1',
 'os_name': 'posix',
 'platform': 'Linux-3.16.0-4-amd64-x86_64-with-debian-8.7',
 'sys_executable': '/home/sviatoslav/workspace/py35/bin/python',
 'sys_platform': 'linux',
 'sys_version': '3.5.2 (default, Oct 31 2016, 21:20:07) \n[GCC 4.9.2]'}

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