Program that can make a minimal wxPython library file for your program

1

Hi, is there a program that can scan your program’s source code or python compiled files and create a list of used widgets, then make a minimal wxPython library file that only has the widgets your program needs?

2

Hi Misbah,

All modules imported in the program are stored in sys.modules dictionary.

import sys
import re
for k, v in sys.modules.items():
    # if re.match(r"wx[.]*", k):
    if k == 'wx' or k.startswith('wx.'):
        print(v)

So if you try this, you will get the following results:

<module 'wx.__version__' from 'C:\\Python39\\lib\\site-packages\\wx\\__version__.py'>
<module 'wx.siplib' from 'C:\\Python39\\lib\\site-packages\\wx\\siplib.cp39-win_amd64.pyd'>
<module 'wx._core' from 'C:\\Python39\\lib\\site-packages\\wx\\_core.cp39-win_amd64.pyd'>
<module 'wx.core' from 'C:\\Python39\\lib\\site-packages\\wx\\core.py'>
<module 'wx' from 'C:\\Python39\\lib\\site-packages\\wx\\__init__.py'>
...
3

Thank you for the help. Your code does print the .py and .so files used by a program but it doesn’t tell you which widgets your program is currently using.

4

I understand. How about this?

from pprint import pprint

def dump():
    def _dump(widget):
        for obj in widget.GetChildren():
            yield obj.__class__
            for x in _dump(obj): # dump as flatiter
                yield x
    for w in wx.GetTopLevelWindows():
        pprint(w.__class__)
        pprint(list(_dump(w)))
1 Like
5

Nice code!

I tried it in this program:

import wx

from pprint import pprint

def dump():
    def _dump(widget):
        for obj in widget.GetChildren():
            yield obj.__class__
            for x in _dump(obj): # dump as flatiter
                yield x
    for w in wx.GetTopLevelWindows():
        pprint(w.__class__)
        pprint(list(_dump(w)))

def main():
    app = wx.App()
    frame = wx.Frame(None, title="Hi")
    panel = wx.Panel(frame)
    st = wx.StaticText(panel, -1, "Hello world", pos=(50,50))
    button = wx.Button(panel, -1, "Push", pos=(140, 50))
    button.Bind(wx.EVT_BUTTON, doit)
    frame.Show()
    app.MainLoop()

def doit(evt):
    wx.Bell()
    dump()


if __name__ == "__main__":
    main()

The result was this:

<class ‘wx._core.Frame’>
[<class ‘wx._core.Panel’>,
<class ‘wx._core.StaticText’>,
<class ‘wx._core.Button’>]

6

Now I have to figure out how to make wxPython. So far I have made progress with building wxwidgets. Using the following command I was able to shrink wxwidgets down from over 50 files to only three and from a 15 MB file for libwx_osx_cocoau-3.1.5.0.0.dylib down to 11.7 MB.

./configure --with-libtiff=no --with-libjpeg=no --with-libpng=no --disable-sys-libs --enable-monolithic --enable-joystick=no --with-zlib=no --with-regex=no --with-expat --enable-svg=no --disable-compat30 --enable-webview=no --enable-filehistory=no --enable-filesystem=no --enable-fontenum --enable-fontmap=no --enable-fs_archive=no --enable-fs_inet=no --enable-fs_zip=no --enable-fsvolume=no --enable-fswatcher=no --enable-geometry --enable-html=no --enable-graphics_ctx=no --enable-docview=no --enable-dctransform=no --enable-mdi=no --enable-richtext=no