Support for Ansible running Python3 on a Mac

[WaffleSouffle]

Macbook
System Version: macOS 10.12.6 (16G29)
Kernel Version: Darwin 16.7.0

• Install Homebrew.
  https://docs.brew.sh/Installation.html

• Homebrew install of python3

brew install python3
python3 --version
Python 3.6.3

• pip3 installed ansible

sudo -H pip3 install ansible

• Install tecris.maven

ansible-galaxy install tecris.maven -vvv

Error reported:

ansible-galaxy 2.4.0.0
  config file = None
  configured module search path = ['/Users/bob/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.6/site-packages/ansible
  executable location = /usr/local/bin/ansible-galaxy
  python version = 3.6.3 (default, Oct 13 2017, 15:50:37) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)]
No config file found; using defaults
Opened /Users/bob/.ansible_galaxy
Processing role tecris.maven
Opened /Users/bob/.ansible_galaxy
- downloading role 'maven', owned by tecris
https://galaxy.ansible.com/api/v1/roles/?owner__username=tecris&name=maven
https://galaxy.ansible.com/api/v1/roles/7576/versions/?page_size=50
ERROR! Unexpected Exception, this is probably a bug: '<' not supported between instances of 'int' and 'str'
the full traceback was:

Traceback (most recent call last):
  File "/usr/local/bin/ansible-galaxy", line 106, in <module>
    exit_code = cli.run()
  File "/usr/local/lib/python3.6/site-packages/ansible/cli/galaxy.py", line 150, in run
    self.execute()
  File "/usr/local/lib/python3.6/site-packages/ansible/cli/__init__.py", line 154, in execute
    fn()
  File "/usr/local/lib/python3.6/site-packages/ansible/cli/galaxy.py", line 392, in execute_install
    installed = role.install()
  File "/usr/local/lib/python3.6/site-packages/ansible/galaxy/role.py", line 236, in install
    loose_versions.sort()
  File "/usr/local/Cellar/python3/3.6.3/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/version.py", line 52, in __lt__
    c = self._cmp(other)
  File "/usr/local/Cellar/python3/3.6.3/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/version.py", line 337, in _cmp
    if self.version < other.version:
TypeError: '<' not supported between instances of 'int' and 'str'

[WaffleSouffle]

Looks like this is a non-Mac specific issue.
The distutils for Python3 version match by taking the version name, splitting it (on .), and then comparing.
This role has version names beginning from v, deriving presumably from git tag names.
e.g. v3.5.2, v3.5.1, v3.5.0

When the distutils version comparison code compares these, it triggers an exception because it can't compare the character 'v' with a number e.g. 3.
I expect the fix is to remove the v, if that's possible.

[tecris]

Can you please let me know if you have any problems with the last version, 17.08.02?

[WaffleSouffle]

ansible_galaxy retrieves all the version numbers in order to compare them, so yes.
You'd need to rename the tags to drop the v prefix, or patch ansible_galaxy to strip them out before it returned them.

[tecris]

Can you please try
ansible-galaxy install -f tecris.maven,17.10.28 and let me know if it works?

[tecris]

Closing as no reply for 1 month.
Can be re-opened if problem persists.