uv does not support --constraint with a URL in double quotes

[turbotankist]

Summary

pip supports this syntax, but uv fails to parse it.

Steps to reproduce:

reqs.txt

--constraint "https://raw.githubusercontent.com/apache/airflow/constraints-2.10.4/constraints-3.11.txt"
...

Actual behavior

uv pip install -r reqs.txt
error: Error parsing included file in `./reqs.txt` at position 86
 Caused by: failed to read from file `"https://raw.githubusercontent.com/apache/airflow/constraints-2.10.4/constraints-3.11.txt"`

Platform

all

Version

0.6.1

Python version

3.11

[charliermarsh]

Need to decide whether we want to support this. It's similar to #3621.

[charliermarsh]

I think it'd be ok to support this just for --constraint and the other flags that are supported here as a start, since those are intended to mirror the CLI.

[charliermarsh]

Gonna do this since it's easy to do on the plane, unlike things that require Internet.

[notatallshaw]

FYI, this will be a behavior difference with pip, which unfortunately reads in constraints files specified inside requirements files like this as though they were requirement files 😞

[charliermarsh]

Sorry, what do you mean?

[charliermarsh]

(I don't think this is a behavior change; it just allows users to surround things we already supported in quotes.)

[notatallshaw]

Apologies, I misunderstood the request, as you say this created no behavior difference for uv