无法打开文件'hello_world.py'：[Errno 2]没有这样的文件或目录

Question

我正在使用'python crash course Second Edition‘学习代码，其中一个最早的设置是学习从终端运行'python_world.py’。我在Mac上运行这个程序。每当我放入代码来运行代码时，它都会显示以下错误消息：

Last login: Fri Nov  6 03:01:42 on ttys000
richardortiz-caballero@Richards-MacBook-Pro ~ % cd Desktop
richardortiz-caballero@Richards-MacBook-Pro Desktop % ls
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python_work
richardortiz-caballero@Richards-MacBook-Pro Desktop % ls python_work
hello_world.py
richardortiz-caballero@Richards-MacBook-Pro Desktop % python hello_world.py
/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python: can't open file 'hello_world.py': [Errno 2] No such file or directory

Answer 1

您需要在该文件所在的目录中才能运行它。在键入python hello_world.py之前，您需要输入目录。所以首先使用cd python_work。

或者，如果您想从桌面目录运行它，只需在运行它时使用完整路径：python python_work/hello_world.py