allow to specify python dependencies in collections

[evgeni]

SUMMARY

Currently, Ansible Collections can only define dependencies on other collections (by using the dependencies keyword in galaxy.yml), which I think is the right thing to do at the ansible-galaxy collection install step.

However it would be useful to be able to define/document dependencies on Python libraries (like you can in the requirements keyword of an Ansible module).

The solution might be just documenting/using a requirements.txt like regular Python libraries do, but we should decide that as a project.

ISSUE TYPE

• Feature Idea

COMPONENT NAME

lib/ansible/galaxy/collection.py

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Files identified in the description:

• lib/ansible/galaxy/collection.py

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[samdoran]

We have no plans to implement this feature at this time. Documenting this in the collection is the best solution. We cannot make assumptions about how packages are managed and installed, especially since modules can be written in languages other than Python.

To discuss this further, please reach out on IRC or the mailing list:

   * IRC: #ansible-devel on irc.freenode.net  
   * mailing list: https://groups.google.com/forum/#!forum/ansible-devel

[evgeni]

Oh yeah, I didn't expect ansible to manage these dependencies. Just looking for a way to express them in a better way than text in the readme.