[PYTHON] Output the call graph with PyCallGraph
This is a call graph output method that can be used when finding a processing speed bottleneck or when checking the interrelationship of objects. (Windows environment)
procedure
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Install pycallgraph. (Introduction of Graphviz is a prerequisite)
$ pip install pycallgraph -
Copy C: \ Python34 \ Scripts \ pycallgraph to the root of your project. (If you play with sys.path, you may not need to copy it. Environment variables seem to be useless.)
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Launch the shell at the root of the project where you want to see the call graph. Run pycallgraph.
$ python pycallgraph graphviz-./filename.py -
Since the program is executed, perform the process you want to draw the call graph.
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When you exit the program, pycallgraph.png will be created in the current directory.
There may be a more correct way.
(Output result when creating an empty window with PySide)
Postscript
It might be easier to write a process to add a filter to the config of C: \ Python34 \ Lib \ site-packages \ pycallgraph \ pycallgraph.py.
~~ When outputting in a format such as DOT or SVG, or changing the output file name, C:\Python34\Lib\site-packages\pycallgraph\output\graphviz.py It is possible for the time being by changing the initial value in init. ~~ ** [2015.05.03 postscript] I was able to specify it with --output-format **
As mentioned in the source, the format can specify the following types. Output Formats | Graphviz - Graph Visualization Software
Reference site
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