| __version__ = "$Id$" |
| |
| import sys |
| from time import time |
| |
| class Trace: |
| def __init__(self): |
| self.dispatch = { |
| 'call': self.trace_dispatch_call, |
| 'return': self.trace_dispatch_return, |
| 'exception': self.trace_dispatch_exception, |
| } |
| self.curframe = None |
| self.depth = -1 |
| self.stdout = sys.stdout |
| |
| def run(self, cmd, globals = None, locals = None): |
| if globals is None: |
| import __main__ |
| globals = __main__.__dict__ |
| if locals is None: |
| locals = globals |
| sys.setprofile(self.trace_dispatch) |
| try: |
| exec cmd in globals, locals |
| finally: |
| sys.setprofile(None) |
| |
| def runcall(self, func, *args): |
| sys.setprofile(self.trace_dispatch) |
| try: |
| apply(func, args) |
| finally: |
| sys.setprofile(None) |
| |
| def trace_dispatch(self, frame, event, arg): |
| curstdout = sys.stdout |
| sys.stdout = self.stdout |
| self.dispatch[event](frame, arg) |
| sys.stdout = curstdout |
| |
| def trace_dispatch_call(self, frame, arg): |
| self.depth = self.depth + 1 |
| self.curframe = frame |
| code = frame.f_code |
| funcname = code.co_name |
| if not funcname: |
| funcname = '<lambda>' |
| filename = code.co_filename |
| lineno = frame.f_lineno |
| if lineno == -1: |
| code = code.co_code |
| if ord(code[0]) == 127: # SET_LINENO |
| lineno = ord(code[1]) | ord(code[2]) << 8 |
| pframe = frame.f_back |
| if pframe: |
| plineno = ' (%d)' % pframe.f_lineno |
| else: |
| plineno = '' |
| print '%s> %s:%d %s%s' % (' '*self.depth,filename,lineno,funcname,plineno) |
| frame.f_locals['__start_time'] = time() |
| |
| def trace_dispatch_return(self, frame, arg): |
| try: |
| t = frame.f_locals['__start_time'] |
| except KeyError: |
| t = '' |
| else: |
| t = ' [%.4f]' % (time() - t) |
| funcname = frame.f_code.co_name |
| self.curframe = frame.f_back |
| if not funcname: |
| funcname = '<lambda>' |
| filename = frame.f_code.co_filename |
| print '%s< %s:%d %s%s' % (' '*self.depth,filename,frame.f_lineno,funcname,t) |
| self.depth = self.depth - 1 |
| |
| def trace_dispatch_exception(self, frame, arg): |
| t = '' |
| if frame is not self.curframe: |
| try: |
| t = frame.f_locals['__start_time'] |
| except KeyError: |
| pass |
| else: |
| t = ' [%.4f]' % (time() - t) |
| self.depth = self.depth - 1 |
| self.curframe = frame |
| funcname = frame.f_code.co_name |
| if not funcname: |
| funcname = '<lambda>' |
| filename = frame.f_code.co_filename |
| print '%sE %s:%d %s%s' % (' '*(self.depth+1),filename,frame.f_lineno,funcname,t) |
| |
| def set_trace(self): |
| try: |
| raise 'xyzzy' |
| except: |
| frame = sys.exc_traceback.tb_frame |
| while frame.f_code.co_name != 'set_trace': |
| frame = frame.f_back |
| d = 0 |
| while frame: |
| d = d + 1 |
| frame = frame.f_back |
| self.depth = d |
| sys.setprofile(self.trace_dispatch) |
| |
| def run(cmd, globals = None, locals = None): |
| Trace().run(cmd, globals, locals) |
| |
| def runcall(*func_args): |
| apply(Trace().runcall, funcargs) |
| |
| def set_trace(): |
| Trace().set_trace() |
| |
| def unset_trace(): |
| sys.setprofile(None) |