Psycopg2 with the --no-binary option appears to be completely ignored

[MartinFalatic]

I have a requirements line thus:

psycopg2==2.7.7 --no-binary psycopg2

It gets completely ignored. I don't see it in the logs, the deps before and after it get checked OK, but Pyup acts as though this line doesn't exist. Why might that be?

(This may be a distant relative of #327 in some way.)

[rafaelpivato]

Valid bug IMHO. At this moment our requirements line parsing is a bit primitive. It would be cool if we could rely more on https://github.com/pyupio/dparse instead of duplicating efforts here.