Package for listing version of packages used in a Jupyter notebook

Question

I seem to remember there is a package that printed the versions and relevant information about Python packages used in a Jupyter notebook so the results in it were reproduci

Answer 1

I made some improvements to @Alex P. Miller's answer so that (sorry I don't have enough reps to "comment" directly on his answer)

1. Automatically works with module names where case sensitivity was causing problems
2. Also lists modules without version numbers as "unknown" to make it clear it couldn't find a match.
3. also lists built in modules if it can detect it.

# show versions of packages
# adopted from https://stackoverflow.com/questions/40428931/package-for-listing-version-of-packages-used-in-a-jupyter-notebook

    def get_imports():
        for name, val in globals().items():
            if isinstance(val, types.ModuleType):
                # Split ensures you get root package, 
                # not just imported function
                name = val.__name__.split(".")[0]
            elif isinstance(val, type):
                name = val.__module__.split(".")[0]
            # Some packages are weird and have different
            # imported names vs. system/pip names. Unfortunately,
            # there is no systematic way to get pip names from
            # a package's imported name. You'll have to add
            # exceptions to this list manually!
            poorly_named_packages = {
                "sklearn": "scikit-learn"
            }
            if name in poorly_named_packages.keys():
                name = poorly_named_packages[name]
            yield name.lower()
    imports = list(set(get_imports()))

    # The only way I found to get the version of the root package
    # from only the name of the package is to cross-check the names 
    # of installed packages vs. imported packages
    modules = []
    for m in sys.builtin_module_names:
        if m.lower() in imports and m !='builtins':
            modules.append((m,'Python BuiltIn'))
            imports.remove(m.lower())

    for m in pkg_resources.working_set:
        if m.project_name.lower() in imports and m.project_name!="pip":
            modules.append((m.project_name, m.version))
            imports.remove(m.project_name.lower())

    for m in sys.modules:
        if m.lower() in imports and m !='builtins':
            modules.append((m,'unknown'))

    # print('System=='+platform.system()+' '+platform.release()+'; Version=='+platform.version())
    for r in modules:
        print("{}=={}".format(*r))