Process has no attribute info - process_iter from psutil

[emcek]

Proccess object do not have info attribute, but code form ps.py is working fine.

ps.py

from psutil import process_iter

def proc_is_running(name: str) -> int:
    for proc in process_iter(['pid', 'name']):
        if name in proc.info['name']:
            return proc.info['pid']
    return 0

pip list

mypy                      1.3.0
mypy-extensions           1.0.0
types-psutil              5.9.5.12

mypy ps.py

ps.py:6: error: "Process" has no attribute "info"  [attr-defined]
ps.py:7: error: "Process" has no attribute "info"  [attr-defined]
Found 2 errors in 1 file (checked 1 source file)

[srittau]

info seems to be added to Process dynamically by process_iter() if the attrs argument was provided:

https://github.com/giampaolo/psutil/blob/49aba759744c06fb3a6fa998155428520f161734/psutil/__init__.py#L1423-L1428

I think the best we can do is to add Process.info with a comment that it only exists when constructed through process_iter().

[emcek]

Yes, this is dynamic behavior.

[sobolevn]

I've sent giampaolo/psutil#2260 to fix it upstream, later we can add info as a regular attribute.