Python 2.7 Python:控制台中奇怪的多处理函数崩溃

我维护了一个实验性工具，仍然使用python 2.7，它使用了大量库，如Gdal、shapely、astropy、OpenCV2、scipy等。在系统发生更改之前，一切都很好，所以虚拟环境已经被重做，然后我遇到了多处理功能的问题

复制行为的最简化代码：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

结果#1与：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

• Python:VirEnv 2.7版本
• 控制台：Pycharm PyDev控制台

回溯（最近一次调用）：文件“”，第1行，在 回溯（最近一次调用）：文件“”，第1行， 在文件“C:\Python27\Lib\multiprocessing\forking.py”中，第行 总的来说是380 准备（准备\u数据）文件“C:\Python27\Lib\multiprocessing\forking.py”，第504行，在准备
文件“C:\Python27\Lib\multiprocessing\forking.py”，第380行，在main中 文件，路径\名称，etc=imp.find\ u模块（主\名称，目录）导入错误：没有名为input的模块 准备（准备\u数据）文件“C:\Python27\Lib\multiprocessing\forking.py”，第504行，在准备中 文件，路径\名称，etc=imp.find\ u模块（主\名称，目录）导入错误：没有名为input的模块

为什么要研究“C:\Python27\Lib\multiprocessing\”而不是VirEnv 2.7版本

结果#2带：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

• Python:Anaconda的VirEnv 2.7
• 控制台：Pycharm PyDev控制台

回溯（最近一次调用）：文件“”，第1行，在 文件 “C:\Users\\ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu， 第105行，在spawn_main中 exitcode=_main（fd）文件“C:\Users\\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu\AppData\Local\conda\conda\envs\Python\u27\lib\multiprocessing\spawn.py”， 第114行，主管道 准备（准备数据）文件“C:\Users\\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu\AppData\Local\conda\conda\envs\Python\u27\lib\multiprocessing\， 第225行，准备就绪 _fixup\u main\u from\u path（数据['init\u main\u from\u path']）文件“C:\Users\\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu\AppData\Local\conda\conda\envs\Python\u 27\lib\multiprocessing\spawn， 第277行，从主路到主路 运行\u name=“mp\u main”）文件“C:\Users\ \uuuuuuuuuuuuuuuuuuuuuuuuu\AppData\Local\conda\conda\envs\Python\u 27\lib\runpy.py”， 第261行，运行路径中 代码，fname=\u从\u文件（运行\u名称，路径\u名称）中获取\u代码\u文件“C:\Users\\uuuuuuuuuuuuuu\AppData\Local\conda\conda\envs\Python\u 27\lib\runpy.py”， 第231行，从文件中获取代码 将open（fname，“rb”）作为f:OSError:[Errno 22]的无效参数：“B:\WorkingSpace\\uuuuuuuuuuuuuu\API”

结果#3与：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

• Python:VirEnv 2.7版本
• 控制台：Pycharm终端

顺利通过

结果#4与：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

• Python:Anaconda的VirEnv 2.7
• 控制台：Pycharm终端

顺利通过

结果#5与：

import multiprocessing
if __name__ == '__main__':
    cpus = multiprocessing.cpu_count()
    cpus = cpus - 1
    pool = multiprocessing.Pool(processes=cpus)

• Python:Anaconda的VirEnv 2.7
• 控制台：水蟒码头

顺利通过

那么，Pycharm PyDev控制台似乎只有崩溃发生在哪里？为什么？如何摆脱这个

此外：

控制台初始化后，我有：

B:\WorkingSpace\_____\API\virEnv_Desktop_V2.7\Scripts\python.exe "C:\Program Files\JetBrains\PyCharm Community Edition 2019.2\helpers\pydev\pydevconsole.py" --mode=client --port=_____
import sys; print('Python %s on %s' % (sys.version, sys.platform))
sys.path.extend(['B:\\WorkingSpace\\_____\\API', 'B:/WorkingSpace/_____/API'])
PyDev console: starting.
Python 2.7.16 (v2.7.16:413a49145e, Mar  4 2019, 01:37:19) [MSC v.1500 64 bit (AMD64)] on win32

当我传递简化的代码来重现该行为时，路径“C:\Python27\Lib\multiprocessing\”中的forking.py中出现错误“importorror:No module named”

Sys.path是：

• 'C:\ProgramFiles\JetBrains\PyCharm社区版 2019.2\helpers\pydev'
• 'C:\Program Files\JetBrains\PyCharm社区版2019.2\helpers\third\u party\thriftpy'
• 'C:\Program Files\JetBrains\PyCharm社区版2019.2\helpers\pydev'
• 'C:\Windows\SYSTEM32\python27.zip'
• 'B:\WorkingSpace\\ uuuuuuuuuuuuuuuuu\API\virEnv\u Desktop\u V2.7\DLLs'
• 'B:\WorkingSpace\\ uuuuuuuuuuuuu\API\virEnv\u Desktop\u V2.7\lib'
• “B:\WorkingSpace\\uuuuuuuuuuuuuuuuuuuuuuuuAPI\virEnv\u Desktop\u V2.7\lib\plat win”
• 'B:\WorkingSpace\\uuuuuuuuuuuuuuuuuuuuuuuuuuuAPI\virEnv\u Desktop\u V2.7\lib\lib tk'
• “B:\WorkingSpace\\ uuuuuuuuuuuuuuuuuuuuuAPI\virEnv\u Desktop\u V2.7\Scripts”
• 'C:\Python27\Lib'
• 'C:\Python27\DLLs'
• 'C:\Python27\Lib\Lib-tk'
• 'B:\WorkingSpace\\ uuuuuuuuuuuuuuu\API\virEnv\u Desktop\u V2.7'
• 'B:\WorkingSpace\\ uuuuuuuuuuuu\API\virEnv\u Desktop\u V2.7\lib\site packages'
• “B:\WorkingSpace\\uuuuuuuuuuuuuuuuuu\API”
• 'B:/WorkingSpace/___;/API'

---

发生了什么事？

更奇怪的是。。。如果我启动包含简化代码的test.py。很好！这似乎与“Pycharm的Python开发控制台”密切相关……请检查项目是否配置为使用虚拟环境，而不是全局环境interpreter@AvivBar-el项目解释器指向Anaconda的VirEnv 2.7构建或VirEnv 2.7。