I'd be happy to see bzr and mercurial and git all made it together into the stdlib for python 3. That would give a superb updating mechanism for python that would propel python well beyond the dinosaur badlands of CPAN and other languages.
I think there are several points that make them not includable in Python:
- git is not written in Python
- bzr and mercurial have a life cycle much shorter than Python's, it's
the same issue than with other libraries where another community develops them.
That's only two points. :-)
On 1; If that's true, I won't mention git again.
On 2; Who knows what their life cycle is. CVS is pretty much dead, and svn looks like it is on the way out. I can't think of how anything could be better than mercurial or bzr but I know I will be proved wrong.
At the end of the day, we are making a decision about whether the language is 'set-in-stone' or whether it is still evolving.
To me, Python 1.x had it's own distinct "era", as has Python 2.x
Hoping that the Python 3 era can be a little more flexible and perphaps "cleaner" than the 2.x era is all that I am thinking here.
Have a nice day