FWIIW, We use PyChecker all the time with Python files using importing wx plus wx.grid or wx.stc, etc. and the run times vary between 5 and 15 seconds. This is Python 2.4 with wxPython 2.4.2.4 and RedHat Fedora Core 2 Linux running on a 1.2 GHz Pentium 4 M laptop. /Jean Brouwers