Python 3 support status?

[ma...@opensourcefoundries.com]

Hi,

I'm looking for information on plans to officially support installing running repo on systems which only have Python 3, especially "out of the box" installation/usage as documented on this page:

https://source.android.com/setup/downloading

Apologies if this is documented somewhere, but the latest discussion I can find on this list is out of date and seems inconsistent with what I get at runtime. Here is the most recent thread I was able to find (from 2013):

https://groups.google.com/d/topic/repo-discuss/NBgPTpaSqzE/discussion

There, it's claimed "I think Repo supports Python 3".

But the repo installation script linked to from source.android.com says support is "experimental", then fails immediately when run in Python 3:

$ curl https://storage.googleapis.com/git-repo-downloads/repo > repo

$ mkdir aosp && cd aosp

$ python3 ../repo init -u https://android.googlesource.com/platform/manifest

warning: Python 3 support is currently experimental. YMMV.

Please use Python 2.6 - 2.7 instead.

Traceback (most recent call last):

  File "../repo", line 883, in <module>

    main(sys.argv[1:])

  File "../repo", line 851, in main

    _Init(args, gitc_init=(cmd == 'gitc-init'))

  File "../repo", line 337, in _Init

    _CheckGitVersion()

  File "../repo", line 391, in _CheckGitVersion

    ver_act = ParseGitVersion(ver_str)

  File "../repo", line 361, in ParseGitVersion

    if not ver_str.startswith('git version '):

TypeError: startswith first arg must be bytes or a tuple of bytes, not str

This issue is over 3 years old, judging by this SO thread:

https://stackoverflow.com/questions/15913868/typeerror-when-trying-to-repo-init-on-python-3-3

From what I gather, the best way to get a version of repo itself (not the bootstrap script from storage.googleapis.com) that "should" run under Python 3 would be something like this:

$ python2 ../repo init -u https://android.googlesource.com/platform/manifest --repo-branch=master

Is that right? Because if so (apart from it being strange that it requires Python 2 installed), when I run that, I get:

info: Ignoring branch 'master'; using tagged release 'v1.12.37'

Note that Ubuntu 18.04 LTS plans on shipping Python 3 only by default, and that's just around the corner:

https://wiki.ubuntu.com/Python

Python 2 itself will hit EOL in just over two years.

Can anyone shed some light on how to install and use repo in a system which only has Python 3 installed?

Thanks,

Marti

[nphi...@spotx.tv]

I would also really like to have an update on this.