'pycallgraph' is not recognized as an internal or external command, operable program or batch file.

[juj]

Tried out the tool, with little success. Here's a log in case it might be helpful.

E:\code\emsdk\emscripten\master>pip install pycallgraph2
Collecting pycallgraph2
  Downloading https://files.pythonhosted.org/packages/d5/7d/636c4f8359f82c5b7dc022e59f67b1f3aa7a1875fa5e9ac00e5119daf4bd/pycallgraph2-1.1.3-py2.py3-none-any.whl
Installing collected packages: pycallgraph2
Successfully installed pycallgraph2-1.1.3
WARNING: You are using pip version 19.2.3, however version 21.0.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

E:\code\emsdk\emscripten\master>pycallgraph graphviz -- emcc -c tests\hello_world.c -o a.o
'pycallgraph' is not recognized as an internal or external command,
operable program or batch file.

E:\code\emsdk\emscripten\master>dir c:\Python38-32\Scripts
 Volume in drive C has no label.
 Volume Serial Number is 4E5A-0CB3

 Directory of c:\Python38-32\Scripts

02/14/2021  09:34 PM    <DIR>          .
02/14/2021  09:34 PM    <DIR>          ..
01/23/2020  11:54 AM            93,027 chardetect.exe
01/23/2020  11:55 AM            93,033 diff-profiles.exe
01/23/2020  11:54 AM            93,011 distro.exe
01/16/2020  05:24 PM            93,036 easy_install-3.8.exe
01/16/2020  05:24 PM            93,036 easy_install.exe
10/28/2020  11:48 AM            93,020 flake8.exe
01/23/2020  11:54 AM               426 mozdownload-script.py
01/23/2020  11:54 AM            65,536 mozdownload.exe
01/23/2020  11:54 AM               646 mozdownload.exe.manifest
01/23/2020  11:54 AM            93,012 mozinfo.exe
01/23/2020  11:55 AM               418 mozinstall-script.py
01/23/2020  11:55 AM            65,536 mozinstall.exe
01/23/2020  11:55 AM               645 mozinstall.exe.manifest
01/23/2020  11:55 AM            93,013 mozprofile.exe
01/23/2020  11:55 AM               433 mozregression-script.py
01/23/2020  11:55 AM            65,536 mozregression.exe
01/23/2020  11:55 AM               648 mozregression.exe.manifest
01/23/2020  11:55 AM            93,012 mozrunner.exe
01/23/2020  11:55 AM               422 mozuninstall-script.py
01/23/2020  11:55 AM            65,536 mozuninstall.exe
01/23/2020  11:55 AM               647 mozuninstall.exe.manifest
01/23/2020  11:55 AM            93,013 mozversion.exe
01/23/2020  11:55 AM               432 moz_add_to_system-script.py
01/23/2020  11:55 AM            65,536 moz_add_to_system.exe
01/23/2020  11:55 AM               652 moz_add_to_system.exe.manifest
01/23/2020  11:55 AM               442 moz_remove_from_system-script.py
01/23/2020  11:55 AM            65,536 moz_remove_from_system.exe
01/23/2020  11:55 AM               657 moz_remove_from_system.exe.manifest
01/16/2020  05:24 PM            93,018 pip.exe
01/16/2020  05:24 PM            93,018 pip3.8.exe
01/16/2020  05:24 PM            93,018 pip3.exe
02/14/2021  09:34 PM               590 pycallgraph
10/28/2020  11:48 AM            93,018 pycodestyle.exe
10/28/2020  11:48 AM            93,017 pyflakes.exe
01/23/2020  11:54 AM            93,013 retry.exe
01/23/2020  11:55 AM            93,019 structlog.exe
01/23/2020  11:55 AM            93,031 view-profile.exe
              37 File(s)      2,074,639 bytes
               2 Dir(s)  54,946,582,528 bytes free

E:\code\emsdk\emscripten\master>python c:\Python38-32\Scripts\pycallgraph graphviz -- emcc -c tests\hello_world.c -o a.o
Traceback (most recent call last):
  File "c:\Python38-32\Scripts\pycallgraph", line 11, in <module>
    import pycallgraph2 as __pycallgraph
ModuleNotFoundError: No module named 'pycallgraph2'

E:\code\emsdk\emscripten\master>pip3 install pycallgraph2
Requirement already satisfied: pycallgraph2 in c:\python38-32\lib\site-packages (1.1.3)
WARNING: You are using pip version 19.2.3, however version 21.0.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

E:\code\emsdk\emscripten\master>pycallgraph graphviz -- emcc -c tests\hello_world.c -o a.o
'pycallgraph' is not recognized as an internal or external command,
operable program or batch file.

Not sure what else to try after that, looks busted, oy maybe I don't have some undocumented prerequisite installed.

Or perhaps pycallgraph does not support Windows? If so, maybe worth updating the main page about supported OSes?

[gitonthescene]

There is a pull request you might want to try.

[juj]

Thanks, unfortunately that did not help :(

[xiasummer]

Encountered the same problem.
Any Help?