Python:找不到 '__main__' 模块

Question

我有这个 python 代码，我想从 Windows 运行中运行它。但是，当我尝试运行它时，cmd 会显示此消息。

C:\Users\myName\AppData\Local\Programs\Python\Python38-32\python.exe: 在“C:\\Users\\myName\\OneDrive”中找不到“__main__”模块'

我正在使用 VS Code 在 python 3.8.3 32 位虚拟环境中编写我的程序。python程序名为pw.py，批处理文件名为pw.bat

pw.py

C:\Users\myName\OneDrive - companyName\04 Programming\01 Visual Studio Code\LearningPython\pw.py

#! python3
# pw.py - An insecure password locker program.

import sys, pyperclip

PASSWORD = {'email': 'F7minlBDDuvMJuxESSKHFhTxFtjVB6',
            'blog': 'VmAlvQyKAxiVH5G8vo1if1MLZF3sdt',
            'luggage': '12345'}

if len(sys.argv) < 2:
    print('Usage: python pw.py [account] - copy account password')
    sys.exit()

account = sys.argv[1]   # first commmand line arg is the account name

if account in PASSWORD:
    pyperclip.copy(PASSWORD[account])
    print('Password for ' + account + ' copied to clipboard.')
else:
    print('There is no account named ' + account)

pw.bat

C:\Users\myName\MyPythonScripts

@py.exe C:\Users\myName\OneDrive - companyName\04 Programming\01 Visual Studio Code\LearningPython\pw.py %*
@pause

Answer 1

首先，检查您是否正确处理了空格，这不是很明显。尝试在批处理文件中使用反斜杠 (\) 作为前缀空格 ( )，如下所示:

@py.exe C:\Users\myName\OneDrive\ -\ companyName\04\ Programming\01\ Visual\ Studio\ Code\LearningPython\pw.py %*
@pause

另一种方法是将路径括在引号中，即:

@py.exe "C:\Users\myName\OneDrive - companyName\04 Programming\01 Visual Studio Code\LearningPython\pw.py" %*
@pause

---

也可以考虑添加以下内容:

if __name__ == "__main__":
    #code here

在你使用 PASSWORDS 字典后，即:

#! python3
# pw.py - An insecure password locker program.

import sys, pyperclip

PASSWORD = {'email': 'F7minlBDDuvMJuxESSKHFhTxFtjVB6',
            'blog': 'VmAlvQyKAxiVH5G8vo1if1MLZF3sdt',
            'luggage': '12345'}

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print('Usage: python pw.py [account] - copy account password')
        sys.exit()

    # And so on...

您可以阅读更多相关信息 here或 there