`ERROR: Cannot install -r requirements.txt (line 5) and urllib3==1.26.5 because these package versions have conflicting dependencies.
The conflict is caused by:
The user requested urllib3==1.26.5
requests 2.23.0 depends on urllib3!=1.25.0, !=1.25.1, <1.26 and >=1.21.1
`
It seems you can't have both urllib3 1.26.5 and requests 2.23.0 at the same time.