调整PATH优先级后pip无法找到的问题求助（Mac OS X High Sierra）

Hey there, let's work through why your pip command isn't showing up even after fixing your Python version! Here are the most common fixes tailored to your setup:

1. First, Check if pip3 Works Instead #

Since you've prioritized Python 3, the corresponding package manager is likely named pip3 (to distinguish it from the system's Python 2 pip). Try running this first:

pip3 --version

If this returns a valid version linked to Python 3, that's the root of the issue—your system just doesn't have a pip alias pointing to pip3.

2. Create a Symlink to Map pip to pip3 #

If pip3 works but pip doesn't, you can create a symbolic link in /usr/local/bin (which is high in your PATH) to make pip point to pip3:

sudo ln -s /usr/local/bin/pip3 /usr/local/bin/pip

Enter your admin password when prompted, then test pip --version again—it should now show the Python 3 pip version.

3. Verify pip Exists in /usr/local/bin #

Let's confirm whether pip (or pip3) is actually present in the directory you prioritized:

ls /usr/local/bin | grep pip

If you don't see pip3 listed here, that means Python 3's pip wasn't installed properly. Reinstall Python 3 using the official installer for Mac, which automatically adds pip3 to /usr/local/bin.

4. Ensure Your PATH Changes Are Fully Applied #

Sometimes modifying .profile doesn't take effect until you reload it or restart your terminal. Run this to reload your profile immediately:

source ~/.profile

Then check your PATH to confirm /usr/local/bin is still first:

echo $PATH

It should output your configured path (note you have /usr/local/bin listed twice—this is harmless, but you can simplify it to /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin if you want).

5. Double-Check Python 3 Installation #

If none of the above works, verify that Python 3 is correctly installed in /usr/local/bin:

ls /usr/local/bin | grep python

You should see python3 listed here. If not, reinstall Python 3 to ensure the full package (including pip3) is set up correctly in your prioritized directory.

内容的提问来源于stack exchange，提问作者darkhelmet