Add short flag for --process-dependency-links

[carlosdanielcsantos]

Adds -L as a short alternative for --process-dependency-links.

Closes #5112

[carlosdanielcsantos]

Is this Travis fail a fluke? Should I push something meaningless just for it to run again or is there a procedure to do that?

[benoit-pierre]

It does look like it, I've restarted the jobs.

[pradyunsg]

@pypa/pip-committers Do we want this?

[benoit-pierre]

I'm not in favor of adding a short option for a deprecated option, especially if the issue is it's too long to type: there are a number of way to fix this locally; e.g. use a shell alias.

[pfmoore]

I'm a pretty strong -1 on this. Basically for all the reasons @benoit-pierre stated.

[pradyunsg]

We should decide on #5112 if we want this, if (and when) the --dependency-links option is undeprecated. Until then, I think the reason for which this shorthand isn't going to be added is clear: not making it easier for someone to use a deprecated option.

I'm gonna close this PR because I don't want it bitrotting by then.

Sorry @carlosdanielcsantos and thanks for the contribution. ^>^

[carlosdanielcsantos]

I found an even better way to do it. Just set this environment variable

PIP_PROCESS_DEPENDENCY_LINKS=1

And pip will always use --process-dependency-links

[lock]

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