Merge ~racb/git-ubuntu:pylint-bug-workaround into git-ubuntu:master

[Robie Basak]

Make Jenkins happy

[Paride Legovini (paride)]

LGTM. I was hoping for a pylint upstream fix, but this doesn't seem to be happening soon enough.

review: Approve

[Bryce Harrington (bryce)]

Looks good as a temporary fix to the problem.

Hopefully gives upstream time to work out a proper fix.

Longer term, OddBloke mentioned it doesn't reproduce with python 3.7 so worst case if this never gets addressed, it'll become a non-issue when some day we can move to python 3.7.

review: Approve

[Server Team CI bot (server-team-bot)]

PASSED: Continuous integration, rev:7de260e64b0d7ff0eaf8435dc7a812ac9d01915d
https://jenkins.ubuntu.com/server/job/git-ubuntu-ci/372/
Executed test runs:
    SUCCESS: VM Setup
    SUCCESS: Build
    SUCCESS: Unit Tests
    IN_PROGRESS: Declarative: Post Actions

Click here to trigger a rebuild:
https://jenkins.ubuntu.com/server/job/git-ubuntu-ci/372//rebuild

review: Approve (continuous-integration)

diff --git a/setup.py b/setup.py
index 738e244..5c3ae01 100644
--- a/setup.py
+++ b/setup.py
@@ -15,12 +15,13 @@ setup(name='gitubuntu',
 	maintainer_email="[e-mail] ",
     install_requires=[
         'argcomplete==1.8.1',
+        'astroid<2.3',  # https://github.com/PyCQA/pylint/issues/3137
         'cachetools',
         'python-debian==0.1.31',
         'pygit2==0.24.2',
         'launchpadlib==1.10.6',
         'petname',
-        'pylint',
+        'pylint<2.4',  # https://github.com/PyCQA/pylint/issues/3137#issuecomment-542286971
         'setuptools',
         'keyring<16',  # https://github.com/jaraco/keyrings.alt/issues/28
         'keyrings.alt',