Timeit is a simple set of functions for measuring execution time for python functions.

timeit can use tracepoints to measure each step time, and display summary at the end:

example:

if __name__ == '__main__':
    init_timeit()

    print 'aloha !'

    @timeit()
    def func():
        print 'a'
        timeit_stamp(inspect.currentframe())
        time.sleep(1)
        timeit_stamp(inspect.currentframe())
        time.sleep(2)
        timeit_stamp(inspect.currentframe())
        print 'b'

    @timeit()
    def func2():
        print 'a'
        timeit_stamp(inspect.currentframe())
        time.sleep(3)
        timeit_stamp(inspect.currentframe())
        time.sleep(4)
        timeit_stamp(inspect.currentframe())
        print 'b'

    func()
    func2()

gives such output:

aloha !
     *** Measuring function <function func at 0x26625f0>
a
     *** tracepoint at line: 106 0.000|timeit_stamp(inspect.currentframe())
     *** tracepoint at line: 108 1.001|timeit_stamp(inspect.currentframe())
     *** tracepoint at line: 110 3.003|timeit_stamp(inspect.currentframe())
b
     *** method: "'func'" total: 3.00 sec args:((), {})  

{'first_line': 106, 'last_line': 110, 'total': 3.0032649040222168}
[{'argspec': ArgSpec(args=[], varargs=None, keywords=None, defaults=None),
  'execution_time': 3.0032460689544678,
  'id': 40248816,
  'method': <function func at 0x26625f0>}]
     *** Measuring function <function func2 at 0x26626e0>
a
     *** tracepoint at line: 116 3.004|timeit_stamp(inspect.currentframe())
     *** tracepoint at line: 118 6.006|timeit_stamp(inspect.currentframe())
     *** tracepoint at line: 120 10.007|timeit_stamp(inspect.currentframe())
b
     *** method: "'func2'" total: 7.00 sec args:((), {})  

{'first_line': 106, 'last_line': 120, 'total': 10.00725793838501}
[{'argspec': ArgSpec(args=[], varargs=None, keywords=None, defaults=None),
  'execution_time': 3.0032460689544678,
  'id': 40248816,
  'method': <function func at 0x26625f0>},
 {'argspec': ArgSpec(args=[], varargs=None, keywords=None, defaults=None),
  'execution_time': 7.003587007522583,
  'id': 40249056,
  'method': <function func2 at 0x26626e0>}]