netgen/python/__init__.py

import os
import sys

from . import config
_netgen_bin_dir=os.path.realpath(os.path.join(os.path.dirname(__file__),'..',config.NETGEN_PYTHON_RPATH_BIN))
_netgen_lib_dir=os.path.realpath(os.path.join(os.path.dirname(__file__),'..',config.NETGEN_PYTHON_RPATH))

if sys.platform.startswith('win'):
    if sys.version >= '3.8':
        os.add_dll_directory(_netgen_bin_dir)
    else:
        os.environ['PATH'] += ';'+_netgen_bin_dir

del sys
del os

from . import libngpy

if config.USE_GUI:
    from . import libngguipy
    global _Redraw, Redraw
    _Redraw = libngguipy.meshvis._Redraw

    def RedrawWithEventHandling(*args, **kwargs):
        try:
            if libngguipy.meshvis._Redraw(*args, **kwargs):
                import netgen
                import tkinter
                cnt = 0
                while(netgen.gui.win.tk.dooneevent(tkinter._tkinter.DONT_WAIT) and cnt < 100):
                    cnt += 1
        except:
            pass

    Redraw = RedrawWithEventHandling
else:
    def Redraw(*args, **kwargs):
        pass