CentOS 7下构建wxPython Phoenix后，如何缩减250MB模块体积？

Absolutely! Trimming down your wxPython Phoenix installation (which clocks in at ~250MB by default) is totally doable, especially since you don't need all its components. Here are the most effective, practical methods to shrink it:

1. Build Only the Components You Need #

When compiling wxPython from source, you can explicitly exclude modules and features you don't use to cut down on bloat:

• Use the --excludes flag with the build script to skip entire modules. For example, if you don't need web views or media playback:

  python build.py --excludes webview,media,richtext
  

• Disable unused system library dependencies. For instance, if you don't handle TIFF or JPEG images, add these flags to your configure step:

  python build.py --configure_args="--with-libtiff=no --with-libjpeg=no --with-libpng=no"
  

• Always enable release mode and disable debug symbols during build:

  python build.py --debug=0 --release=1
  

2. Strip Debug Symbols #

Even in release mode, compiled binaries often include debug symbols that add significant size. Use the strip command to remove them from shared libraries:

strip /path/to/your/wxPython/lib/python3.x/site-packages/wx/*.so

This alone can reduce the library size by 30-50% in many cases.

3. Clean Up Unnecessary Files #

After installation, delete redundant files that aren't required for runtime:

• Remove documentation, example scripts, and test files from the wxPython installation directory (usually in subfolders like docs/, examples/, or tests/).
• If you built in a virtual environment, ensure you don't include leftover build artifacts (like source code or temporary build directories) in your final deployment.

4. Compress Binaries with UPX (Optional) #

For an extra size reduction, use UPX (Ultimate Packer for Executables) to compress wxPython's shared libraries. Install UPX via yum install upx on CentOS 7, then run:

upx --best /path/to/wxPython/lib/*.so

Note: Test your application thoroughly after compression—while UPX is generally safe, some edge cases might cause compatibility issues.

5. Trim Locale Files #

wxPython includes locale files for dozens of languages. If your app only supports a few languages, delete the unused .mo files from the wx/locale/ directory. For example, keep only en_US.mo if you only need English.

Start with steps 1 and 2 first—they'll give you the biggest size gains without risking compatibility. Test your app after each change to make sure all required functionality still works!

内容的提问来源于stack exchange，提问作者UMANG