pipenv lock: hangs when internet is slow. So is it ok to skip pipenv lock and do it once in a while when we have good internet speed

[sant527]

Recently i observed that pipenv lock gets hanged.

I have read about the issue at many places

But practically i found on my pc that when its connected to slow internet speed (200-700 kbps) it stucks and when it is connected to good internet speed (2-3 Mbps) it works fine

Also i found that whenever ever i do pipenv lock it downloads 200-300 Mb data. Thats fine but just to know

So what i want to do is whenever i install a new package i want to skip the pipfile.lock getting updated using --skip-lock option

 i.e pipenv install --skip-lock somepackage

Later when i am connected to good internet speed i can do

pipenv lock

Locking [dev-packages] dependencies…
✔ Success! 
Locking [packages] dependencies…
✔ Success! 

I am just curious will this have any drawback in terms of identifying the versions installed at the time of installation

[benatkin]

This properly describes the issue here: #3827

It's much slower than just the speed it would take to download the amount of data that ends up getting downloaded, because there is a lot of back and forth to resolve the packages that need to be downloaded and generate pipenv.lock.

It's like SQL where you have 50 queries due to an N+1 query issue. If you're close to the database, it might not be noticeably slow, but once you're far away from the database, it's sloooooow.

[januszm]

I generated a flamegraph of what happens inside the main function of the resolver.py, see: #3827 (comment)
on a poor internet connection pipenv install's bottleneck is downloading stuff

[matteius]

I think the answer to the OP is yes it should be fine to do this when your internet connection is having slowness.