在 Python 3.5.2 中导入 *asyncio* 由于 *Full* 被隐藏而导致 ImportError
Importing *asyncio* in Python 3.5.2 cause ImportError due to *Full* being shadowed
在 Python 3.5.2 导入 asyncio 引发了 ImportError.
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
Type "copyright", "credits" or "license" for more information.
IPython 5.2.2 -- 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 asyncio
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-dc80feba2326> in <module>()
----> 1 import asyncio
/usr/lib/python3.5/asyncio/__init__.py in <module>()
19
20 # This relies on each of the submodules having an __all__ variable.
---> 21 from .base_events import *
22 from .coroutines import *
23 from .events import *
/usr/lib/python3.5/asyncio/base_events.py in <module>()
16
17 import collections
---> 18 import concurrent.futures
19 import heapq
20 import inspect
/usr/lib/python3.5/concurrent/futures/__init__.py in <module>()
15 wait,
16 as_completed)
---> 17 from concurrent.futures.process import ProcessPoolExecutor
18 from concurrent.futures.thread import ThreadPoolExecutor
/usr/lib/python3.5/concurrent/futures/process.py in <module>()
50 from concurrent.futures import _base
51 import queue
---> 52 from queue import Full
53 import multiprocessing
54 from multiprocessing import SimpleQueue
ImportError: cannot import name 'Full'
这是pip freeze的输出：
aiohttp==1.3.3
appdirs==1.4.0
async-timeout==1.1.0
chardet==2.3.0
decorator==4.0.11
ipython==5.2.2
ipython-genutils==0.1.0
multidict==2.1.4
numpy==1.12.0
packaging==16.8
pexpect==4.2.1
pickleshare==0.7.4
prompt-toolkit==1.0.13
ptyprocess==0.5.1
Pygments==2.2.0
pyparsing==2.1.10
scipy==0.18.1
simplegeneric==0.8.1
six==1.10.0
traitlets==4.3.1
wcwidth==0.1.7
yarl==0.9.8
在这种情况下如何导入 asyncio？
检查您的项目或当前工作目录是否包含名为 queue.py 的文件并将其重命名。 （根据你的评论，是文件/home/gianluca/git/python/asyncio/queue.py。）
在 Python 3.5.2 导入 asyncio 引发了 ImportError.
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
Type "copyright", "credits" or "license" for more information.
IPython 5.2.2 -- 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 asyncio
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-dc80feba2326> in <module>()
----> 1 import asyncio
/usr/lib/python3.5/asyncio/__init__.py in <module>()
19
20 # This relies on each of the submodules having an __all__ variable.
---> 21 from .base_events import *
22 from .coroutines import *
23 from .events import *
/usr/lib/python3.5/asyncio/base_events.py in <module>()
16
17 import collections
---> 18 import concurrent.futures
19 import heapq
20 import inspect
/usr/lib/python3.5/concurrent/futures/__init__.py in <module>()
15 wait,
16 as_completed)
---> 17 from concurrent.futures.process import ProcessPoolExecutor
18 from concurrent.futures.thread import ThreadPoolExecutor
/usr/lib/python3.5/concurrent/futures/process.py in <module>()
50 from concurrent.futures import _base
51 import queue
---> 52 from queue import Full
53 import multiprocessing
54 from multiprocessing import SimpleQueue
ImportError: cannot import name 'Full'
这是pip freeze的输出：
aiohttp==1.3.3
appdirs==1.4.0
async-timeout==1.1.0
chardet==2.3.0
decorator==4.0.11
ipython==5.2.2
ipython-genutils==0.1.0
multidict==2.1.4
numpy==1.12.0
packaging==16.8
pexpect==4.2.1
pickleshare==0.7.4
prompt-toolkit==1.0.13
ptyprocess==0.5.1
Pygments==2.2.0
pyparsing==2.1.10
scipy==0.18.1
simplegeneric==0.8.1
six==1.10.0
traitlets==4.3.1
wcwidth==0.1.7
yarl==0.9.8
在这种情况下如何导入 asyncio？
检查您的项目或当前工作目录是否包含名为 queue.py 的文件并将其重命名。 （根据你的评论，是文件/home/gianluca/git/python/asyncio/queue.py。）