How to resolve Python package depencencies with pipenv?

Question

I am using pipenv to handle a Python package dependencies.

The Python package is using two packages (named pckg1 and pckg2) that relies on

Answer 1

You can't. At the moment, pipenv doesn't offer anything for an explicit override of requirement constraints.

As a workaround, you can put dependencies that you want to override to dev-packages as those will be overridden by packages, so this Pipfile should install pckg3>=4.1.0:

# Pipfile
...
[packages]
pckg1 = "==3.0.0"

[dev-packages]
pckg2 = "==1.0.2"

If you now lock and install:

$ pipenv lock --dev
$ pipenv install --dev

the requirement ==4.0.11 will be overridden by >=4.1.0. This is ugly if you ask me because this is not what development packages are meant for and you're changing the role of pckg2 dependency in project, but I don't see any better way here.