Is there a way to annotate Python source code with the profiler results?

Question

I'm currently using cProfile and pstats to profile some Python code.

Is there a way to annotate the source code with the time taken on each line? Ideally this would be a coloured (HTML) version of the source with expensive lines highlighted in red or something.

If you just want to find the most expensive lines, [try this](http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code/4299378#4299378). — Mike Dunlavey, Mar 29 '11 at 15:12

pylover · Accepted Answer · 2011-03-29T01:13:51.370

4

yes, look at line profiler or profilehooks

I think is so simple to render the output to html, with your own codes.

and for graph, take a look at gprof2dot

edited Mar 29 '11 at 01:13

answered Mar 29 '11 at 00:57

pylover

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score 1 · Answer 2 · answered Mar 29 '11 at 00:55

Not quite what you ask for but might be helpful:

http://code.google.com/p/jrfonseca/wiki/Gprof2Dot

It draws a graph which makes it really easy to see which functions take up your execution time.

I'm not aware of a python profiler that tracks execution line by line. I suspect that doing so would confuse the results because it would be too much overhead.

Is there a way to annotate Python source code with the profiler results?

2 Answers2