Update pandas

[jenhagg]

Purpose

Update pandas to fix issue reading pickles created on the server.

What it does

• drop requirements_freeze.txt since we have Pipfile.lock
• use compatible release syntax (the ~=1.1.2) based on Daniel's comments
• also use that syntax for psycopg2 which ends up being updated in the lock file to a new minor version
• everything is autogenerated by pipenv except the corresponding changes in requirements.txt

Time to review

3 min

[jenhagg]

We'll need to update the lock file in pre/postreise too, since they include powersimdata dependencies. I'll do this shortly.

[danielolsen]

Shouldn't we grab the newest psycopg2? I think both places (pipfile and requirements) should list 2.8.6, not 2.8.5, right?

[jenhagg]

I thought I'd leave the version in pipfile to try out the new syntax - both pip and pipenv will install the latest compatible version based on that (or use the lock file directly) so doesn't really matter what we put in the pipfile.

[danielolsen]

I thought I'd leave the version in pipfile to try out the new syntax - both pip and pipenv will install the latest compatible version based on that (or use the lock file directly) so doesn't really matter what we put in the pipfile.

Cool, sounds good!

[danielolsen]

Thanks for the quick fix!