Another question when changing a dependency for a test pex b

Question

Another question when changing a dependency for a test pex binary target we get a relatively big penalty anything from 60 250 seconds which rather large and really hurts the feedback loop is this expected ```Building requirements pex with 75 requirements aiobotocore==1 4 2 ``` Takes most of the time

curved-television-6568 · Answer

I ve also noticed that building the requirements pex is a time consuming task My impression is that it is largely pip that takes a lot of time wondering if there is something that could be done to help speed pip up

hundreds-father-404 · Answer

Hm are you using a constraints file <https www pantsbuild org docs python third party dependencies user lockfile|https www pantsbuild org docs python third party dependencies user lockfile>

happy-kitchen-89482 · Answer

Yeah currently using a constraints file gives you a huge speedup after the initial resolve

happy-kitchen-89482 · Answer

And we are working on supporting multiple lockfiles to the same benefit