python性能分析器：line_profiler

代码：

import line_profiler
import sys

def test():
    for i in range(0, 10):
        print( i**2 )
    print("End of the function")

prof = line_profiler.LineProfiler(test) #pass in the function to profile

prof.enable() #start profiling
test()
prof.disable() #stop profiling

prof.dump_stats('test.prof')

prof.print_stats(sys.stdout) #print out the results

运行结果：

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代码2：

from line_profiler import profile

@profile
def test():
    for i in range(0, 10):
        print( i**2 )
    print("End of the function")

test()

运行结果：

kernprof -l -v B02088_02_17.py