Provide example of code

[CristinaRaileanu]

I need to do a call graph using pydeps, but on an executable. So, I think a way to do it is to add code that uses pydeps to make a call graph. The things is, I didn't find any example of how to use it programmatically. Could you, please, provide some. Sorry, if this is similar to other issues.

[thebjorn]

Good starting points would be https://github.com/thebjorn/pydeps/blob/master/tests/test_skinny_package.py and

pydeps/pydeps/pydeps.py

Line 136 in bef746a

return _pydeps(inp, **_args)

If you have any specific questions I can try to answer them...

[CristinaRaileanu]

still not very clear how should I call it from the code. As I understand inp is the target file and args is a dictionary with flags. I am tried to do this:

    args = {"max-bacon": 4,
           "only": "src.ps. src.fov. src.pcm.",
           "rmprefix": "src.ps. src.fov. src.pcm."}
    _pydeps(inp, args)```

but gives me this error:
 TypeError: _pydeps() takes exactly 1 argument (2 given)

[thebjorn]

Ah, ok. Something like this should work:

import os
from pydeps.pydeps import _pydeps
from pydeps.target import Target
import pydeps.cli

FNAME = 'callpydeps.py'
OUT_FNAME = os.path.join(os.getcwd(), 'callpydeps.svg')

the output should be an absolute'ish path.

It's usually easier to let pydeps parse the args (note the format and the .split())

args = pydeps.cli.parse_args("""
    {fname}
    -o {output}
    --max-bacon=4
""".format(
    fname=FNAME,
    output=OUT_FNAME,
).split())

You can create your own arg-dict, but perhaps print the one returned from cli.parse_args to see what is expected...

print("ARGS:", args)

_pydeps(
    Target(args['fname']),
    **args
)

The filename needs to be wrapped in a pydeps.target.Target class, and the args should be passed with the double-star (**) notation.

You should get a graph if you put the above in a file named 'callpydeps.py' and run it.

[CristinaRaileanu]

Thank you very much