[ghshephard]

    pip freeze > requirements.txt

Lists every python module that's been loaded into the virtualenvironment. So, from my (admittedly new) understanding, that means we guarantee that in the production/devel/docker environment - every python module will be identical to whatever was installed in the virtual env.

Dependencies and transitive dependencies are guaranteed to be resolved/ensured because we list everyone one of them out in the requirements.txt file.

[jshen]

Yes, this works as you expect. What it lacks are three big things; making it easy to see what your direct dependencies are, separating dev dependencies from prod dependencies, and an easy way to update a dependency while resolving all transitive dependencies.

There are other shortcomings, but those are the big ones.