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[Matthew Edmonds <edmondsw@xxxxxxxxxx>]

Public bug reported:

keystone's requirements.txt includes several things that are really
optional dependencies, only needed if you are using certain features.
These should be moved out of requirements.txt and handled as extras in
setup.cfg. A few of these that I've noticed are:

passlib (only needed for the sql identity backend)
oauthlib
pysaml2

This is already done for several things:

python-ldap
ldappool
python-memcached
pymongo
bandit

We ought to be consistent. Moving optional dependencies to setup.cfg is
both a) correct and b) will allow those who do not need certain features
to package/ship/install less. This is important for applications based
on OpenStack that don't want the extra work of
building/shipping/installing/supporting things which are not necessary
for their application. It's important for users that shouldn't have to
install things they don't need. Etc.

** Affects: keystone
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1505777

Title:
  inconsistent support for optional dependencies

Status in Keystone:
  New

Bug description:
  keystone's requirements.txt includes several things that are really
  optional dependencies, only needed if you are using certain features.
  These should be moved out of requirements.txt and handled as extras in
  setup.cfg. A few of these that I've noticed are:

  passlib (only needed for the sql identity backend)
  oauthlib
  pysaml2

  This is already done for several things:

  python-ldap
  ldappool
  python-memcached
  pymongo
  bandit

  We ought to be consistent. Moving optional dependencies to setup.cfg
  is both a) correct and b) will allow those who do not need certain
  features to package/ship/install less. This is important for
  applications based on OpenStack that don't want the extra work of
  building/shipping/installing/supporting things which are not necessary
  for their application. It's important for users that shouldn't have to
  install things they don't need. Etc.

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