如何将pymongo从2.7版本升级至3.6版本（Mac OS环境）

Hey there! Let's walk through upgrading your pymongo version from 2.7.2 to 3.6 on your Mac. I'll cover a few scenarios to fit different setups:

Basic Upgrade (Global Python) #

If you're using the system-wide or a global Python installation, you can run the upgrade command directly. Note that you might hit permission issues with Mac's default Python, so here are two options:

• Standard upgrade (if you have admin rights or no permission errors):

  pip install --upgrade pymongo==3.6.0
  

• User-specific install (avoids admin permissions, installs to your user directory):

  pip install --user --upgrade pymongo==3.6.0
  

Recommended: Use a Virtual Environment #

To avoid messing with your global Python packages, using a virtual environment is always a good practice. Here's how:

1. Activate your existing virtual environment (replace your_venv with your actual venv name):

   source your_venv/bin/activate  # For bash/zsh
   # Or for csh/tcsh:
   source your_venv/bin/activate.csh
   

2. Run the upgrade command inside the activated venv:

   pip install --upgrade pymongo==3.6.0
   

Verify the Upgrade #

Once you've run the command, confirm the version is correct with either:

• A pip freeze check:

  pip freeze | grep pymongo
  

  You should see pymongo==3.6.0 in the output.
• Or a quick Python test:

  import pymongo
  print(pymongo.__version__)
  

  This should print 3.6.0.

Note for Python 3 Users #

If you're using Python 3 (and have pip3 installed), replace all instances of pip with pip3 in the commands above to ensure you're upgrading the package for the correct Python version.

内容的提问来源于stack exchange，提问作者Usman