如何将Kivy安装到指定的Python站点包目录？

Hey there, let's troubleshoot this Kivy installation problem together—this is a common issue with system-protected Python directories on Windows, so we'll work through it step by step.

1. Resolve Permission Issues First #

The C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64 directory is protected by Windows, meaning regular command prompts don't have permission to write to its site-packages folder. Here's how to fix that:

• Open Command Prompt or PowerShell as an administrator: Right-click the start menu entry for your terminal, select "Run as administrator".
• This grants the necessary write access to install packages directly into the system-protected folder.

2. Use the Full Path to Your Python 3.5 Executable #

It's easy to have multiple Python versions installed on Windows, which can cause the generic python command to point to a different environment (not your Visual Studio Python 3.5). To avoid this:

• Run this exact command in your admin terminal:

  C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64\python.exe -m pip install kivy
  

  By using the full path to your target Python executable, you ensure pip uses that specific environment—so Kivy will install directly into its site-packages folder.

3. Upgrade Pip First (Critical for Older Python Versions) #

Python 3.5 comes with an outdated version of pip, which often causes installation failures for newer packages like Kivy. Upgrade pip first using your target Python:

C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64\python.exe -m pip install --upgrade pip

Once pip is updated, run the Kivy install command from step 2 again.

4. If All Else Fails: Explicitly Specify the Target Path #

If pip still isn't installing to the correct site-packages folder, you can force it with the --target flag:

C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64\python.exe -m pip install kivy --target "C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64\Lib\site-packages"

Note: This is a fallback—using the full Python path (step 2) should normally handle this automatically, so only use this if the previous steps don't work.

Verify the Installation #

After completing the steps, confirm Kivy is installed in the right place with this command:

C:\Program Files(x86)\Microsoft Visual Studio\Shared\Python35_64\python.exe -c "import kivy; print(kivy.__file__)"

You should see a path pointing directly to your target site-packages folder if everything worked.

内容的提问来源于stack exchange，提问作者Ivan Minakov