这个错误的原因是什么:“PermissionError: [WinError 5] Access is denied" [英] What is the reason of this errror: "PermissionError: [WinError 5] Access is denied"
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问题描述
我尝试在 Pycharm2018.3.3 上运行此示例代码,但没有成功.但是相同的代码可以在 IDLE 上运行而不会出现任何错误.
I try to run this example code on Pycharm2018.3.3, it didn't work out. But the same code can run on the IDLE without any error.
我的环境是Python3.7 + windows10.
My environment is Python3.7 + windows10.
from multiprocessing import Process, Queue
def f(q):
q.put([42, None, 'hello'])
if __name__ == '__main__':
q = Queue()
p = Process(target=f, args=(q,))
p.start()
print(q.get()) # prints "[42, None, 'hello']"
p.join()
Process Process-1:
Traceback (most recent call last):
File "C:\Users\WYM\AppData\Local\Programs\Python\Python37-32\lib\multiprocessing\process.py", line 297, in _bootstrap
self.run()
File "C:\Users\WYM\AppData\Local\Programs\Python\Python37-32\lib\multiprocessing\process.py", line 99, in run
self._target(*self._args, **self._kwargs)
File "E:\Spider2\ControlNode\test.py", line 4, in f
q.put([42, None, 'hello'])
File "C:\Users\WYM\AppData\Local\Programs\Python\Python37-32\lib\multiprocessing\queues.py", line 82, in put
if not self._sem.acquire(block, timeout):
PermissionError: [WinError 5] Access is denied.
推荐答案
此问题可能是 Python 3.7 的 已知错误.2
This issue may be a known bug with Python 3.7.2
我遇到了同样的问题,并通过使用 Python 3.7.0 创建新的虚拟环境来修复它
I was experiencing the same issue and fixed it by creating a new virtual environment with Python 3.7.0
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