1. Alt + Enter while cursor standing on problematic place.
2. Select appropriate entry from appeared popup menu.
3. Expand submenu (click on small triangle on the right side .. or just press arrow right key on keyboard.
4. Choose "Suppress for statement" from there.
In the end special comment will be added just before that line that would temporarily turn off that specific inspection for next statement.
This is how it looks in PhpStorm (sorry, I'm not PyCharm or Python user):