Regarding the issue of self developed code scanning

[mythldy]

Why can't ScanOSS or scanoss-py detect the open-source libraries I imported and referenced in my Python code

[mythldy]

import requests
r = requests.get('https://httpbin.org/basic-auth/user/pass', auth=('user', 'pass'))
r.status_code
r.headers['content-type']
r.encoding
r.text
r.json()
For example, this code cannot recognize which line references requests