EC2环境Python2.7执行python –m .命令报错：无法打开文件'–m'

Hey there! Let's break down why this error is happening and how to fix it step by step:

1. The immediate culprit: Incorrect dash character #

The first problem is that you're using a Chinese en dash (–) instead of an English hyphen (-) for the -m flag. Python doesn't recognize the en dash as a command-line option—instead, it treats –m as a filename it needs to open, which is why you get the "No such file or directory" error.

2. Fix the command format (even after fixing the dash) #

Even if you swap the dash to the correct one, python -m . isn't a valid command. The -m flag tells Python to run a module as a script, so you need to specify a valid module name after it, not just a dot. Here's what you can do instead:

• If you want to run a specific script in your current directory (e.g., my_script.py), skip the -m flag entirely and run:

  python my_script.py
  

• If you're working with a Python package (a directory containing an __init__.py file) and want to run it as a module, specify the package name. For example, if your package is named my_package and lives in your current working directory, run:

  python -m my_package
  

  Note: Make sure the package has a __main__.py file inside it—this is the script Python will execute when you run the package with -m.

Quick corrected command example #

If you meant to run a script named main.py in your current directory, the proper command is:

python main.py

内容的提问来源于stack exchange，提问作者Stacy Thompson