The name of the libs and python packages are different, Odoo expects
the inner python package in the manifest, but setuptools cannot find the
libs in pypi, overrides them with the libs names.
OVH's Swift applies a rate limit on the authentication.
attachment_swift authenticates again each time it has to read/write an
attachment. When running upgrades on upgrades of files or installing a
new DB, at some point, we get rejected with HTTP 429.
This commit introduces a shared storage for Swift Session. All
connections will reuses the same authentication token created the first
time a connection needs a Session.
Note: needs python-swiftclient>=3.7.0 to have
https://github.com/openstack/python-swiftclient/commit/1971ef880ff225379d4a91f00f89f323a1605eeb