5c71ebd7a9
pip doesn't have a dependency resolver. Instead, it "simply uses the
first specification it finds for a project." [1] In Train, keystone
switched from hacking 0.12.x/0.13.x to hacking 1.1.x [2]. That change
explicitly added a pycodestyle dependency for reasons that aren't
entirely clear to me, but pip's broken dependency resolution leads to
the below funkiness when trying to install the dependencies.
ERROR: flake8 2.6.2 has requirement pycodestyle<2.1,>=2.0, but you'll have pycodestyle 2.5.0 which is incompatible.
As seen below, this can be easily reproduced and seems to happen because
pip doesn't go further than one level of dependencies, meaning it knows
about the dependency on flake8<2.7.0,>=2.6.0 from hacking, but not the
dependency on pycodestyle<2.1,>=2.0 that this in-turn introduces.
$ virtualenv venv
$ source venv/bin/activate
$ (venv) cat requirements.txt
hacking>=1.1.0,<1.2.0 # Apache-2.0
pycodestyle>=2.0.0 # MIT License
$ pip install -r requirements-new.txt
Collecting hacking<1.2.0,>=1.1.0
Using cached ...
Collecting pycodestyle>=2.0.0
Using cached ...
Collecting six>=1.10.0
Using cached ...
Collecting flake8<2.7.0,>=2.6.0
Using cached ...
Collecting pbr!=2.1.0,>=2.0.0
Using cached ...
Collecting mccabe<0.6,>=0.2.1
Using cached ...
Collecting pyflakes!=1.2.0,!=1.2.1,!=1.2.2,<1.3,>=0.8.1
Using cached ...
ERROR: flake8 2.6.2 has requirement pycodestyle<2.1,>=2.0, but you'll have pycodestyle 2.5.0 which is incompatible.
Installing collected packages: six, pycodestyle, mccabe, pyflakes, flake8, pbr, hacking
Successfully installed flake8-2.6.2 hacking-1.1.0 mccabe-0.5.3 pbr-5.4.3 pycodestyle-2.5.0 pyflakes-1.2.3 six-1.12.0
The solution is simple: stop explicitly requiring this dependency and
instead rely on flake8 bringing it in.
[1] https://pip.pypa.io/en/stable/user_guide/#requirements-files
[2] I3fc591e09c1e25a3bd2a3922880772ea9617f1e3
Change-Id: Ic0991d3eeae018609be0ecbd43fa0b0b9f13d6ba
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
|
||
|---|---|---|
| api-ref/source | ||
| config-generator | ||
| devstack | ||
| doc | ||
| etc | ||
| examples/pki | ||
| httpd | ||
| keystone | ||
| keystone_tempest_plugin | ||
| playbooks/legacy/keystone-dsvm-grenade-multinode | ||
| rally-jobs | ||
| releasenotes | ||
| tools | ||
| .coveragerc | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .stestr.conf | ||
| .zuul.yaml | ||
| CONTRIBUTING.rst | ||
| HACKING.rst | ||
| LICENSE | ||
| README.rst | ||
| babel.cfg | ||
| bindep.txt | ||
| lower-constraints.txt | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
README.rst
Team and repository tags
OpenStack Keystone
Keystone provides authentication, authorization and service discovery mechanisms via HTTP primarily for use by projects in the OpenStack family. It is most commonly deployed as an HTTP interface to existing identity systems, such as LDAP.
Developer documentation, the source of which is in
doc/source/, is published at:
The API reference and documentation are available at:
The canonical client library is available at:
Documentation for cloud administrators is available at:
The source of documentation for cloud administrators is available at:
Information about our team meeting is available at:
Release notes is available at:
Bugs and feature requests are tracked on Launchpad at:
Future design work is tracked at:
Contributors are encouraged to join IRC
(#openstack-keystone on freenode):
For information on contributing to Keystone, see
CONTRIBUTING.rst.