codekingpro/portable-devtools

1import sys2 3 4# Some cruft to deal with the Pythonwin GUI booting up from a non GUI app.5def _MakeDebuggerGUI():6    app.InitInstance()7 8 9isInprocApp = -110 11 12def _CheckNeedGUI():13    global isInprocApp14    if isInprocApp == -1:15        import win32ui16 17        isInprocApp = win32ui.GetApp().IsInproc()18    if isInprocApp:19        # MAY Need it - may already have one20        need = "pywin.framework.app" not in sys.modules21    else:22        need = 023    if need:24        import pywin.framework.app25 26        from . import dbgpyapp27 28        pywin.framework.app.CreateDefaultGUI(dbgpyapp.DebuggerPythonApp)29 30    else:31        # Check we have the appropriate editor32        # No longer necessary!33        pass34    return need35 36 37# Inject some methods in the top level name-space.38currentDebugger = None  # Wipe out any old one on reload.39 40 41def _GetCurrentDebugger():42    global currentDebugger43    if currentDebugger is None:44        _CheckNeedGUI()45        from . import debugger46 47        currentDebugger = debugger.Debugger()48    return currentDebugger49 50 51def GetDebugger():52    # An error here is not nice - as we are probably trying to53    # break into the debugger on a Python error, any54    # error raised by this is usually silent, and causes55    # big problems later!56    try:57        rc = _GetCurrentDebugger()58        rc.GUICheckInit()59        return rc60    except:61        print("Could not create the debugger!")62        import traceback63 64        traceback.print_exc()65        return None66 67 68def close():69    if currentDebugger is not None:70        currentDebugger.close()71 72 73def run(cmd, globals=None, locals=None, start_stepping=1):74    _GetCurrentDebugger().run(cmd, globals, locals, start_stepping)75 76 77def runeval(expression, globals=None, locals=None):78    return _GetCurrentDebugger().runeval(expression, globals, locals)79 80 81def runcall(*args):82    return _GetCurrentDebugger().runcall(*args)83 84 85def set_trace():86    import sys87 88    d = _GetCurrentDebugger()89 90    if d.frameShutdown:91        return  # App closing92 93    if d.stopframe != d.botframe:94        # If im not "running"95        return96 97    sys.settrace(None)  # May be hooked98    d.reset()99    d.set_trace()100 101 102# "brk" is an alias for "set_trace" ("break" is a reserved word :-(103brk = set_trace104 105# Post-Mortem interface106 107 108def post_mortem(t=None):109    if t is None:110        t = sys.exc_info()[2]  # Will be valid if we are called from an except handler.111    if t is None:112        try:113            t = sys.last_traceback114        except AttributeError:115            print(116                "No traceback can be found from which to perform post-mortem debugging!"117            )118            print("No debugging can continue")119            return120    p = _GetCurrentDebugger()121    if p.frameShutdown:122        return  # App closing123    # No idea why I need to settrace to None - it should have been reset by now?124    sys.settrace(None)125    p.reset()126    while t.tb_next != None:127        t = t.tb_next128    p.bAtPostMortem = 1129    p.prep_run(None)130    try:131        p.interaction(t.tb_frame, t)132    finally:133        t = None134        p.bAtPostMortem = 0135        p.done_run()136 137 138def pm(t=None):139    post_mortem(t)140