pip命令未被识别且找不到pip.exe，重装Python3.6仍无法解决求助

Hey Diego, sorry you're stuck with this missing pip issue—reinstalling Python multiple times without luck is definitely frustrating. Let's walk through some targeted fixes to get pip working for your Python 3.6 setup:

1. Verify Python's Path & Environment Variables #

First, let's make sure your system can find Python and its Scripts folder:

• Open Command Prompt (CMD) and run python --version. If this fails, Python wasn't added to your system's PATH during installation.
• Locate your Python 3.6 installation directory (usually C:\Python36 by default). Add both C:\Python36 and C:\Python36\Scripts to your system's PATH environment variable.
• Restart CMD after updating the PATH, then test python --version and pip --version again.

2. Manually Install pip #

Since reinstalling Python didn't add pip, we'll install it directly:

• Grab the version-specific get-pip.py script designed for Python 3.6 (make sure it's compatible with older Python versions). Save this file to your Python 3.6 installation root folder (e.g., C:\Python36).
• Open CMD, navigate to that folder with cd C:\Python36, then run:

  python get-pip.py
  

This will install pip directly into your Scripts folder.

3. Fix the "Invalid Syntax" Error with python -m pip #

The syntax error you saw in the Python Shell makes sense—the Python Shell is for running Python code, not command-line commands! You need to run that command in Command Prompt or PowerShell instead:

python -m pip install packagename

Note: You don't need single quotes around the package name in Windows CMD.

4. Reinstall Python with Correct Options #

If you try reinstalling again, double-check these critical settings:

• When launching the Python 3.6 installer, select Customize installation.
• In the "Optional Features" step, ensure the pip checkbox is checked.
• Make sure to check Add Python to PATH either on the initial screen or in the advanced options—this is essential for the system to detect pip and python commands.

内容的提问来源于stack exchange，提问作者Diego Church