Running Mercurial on Mavericks
I had a similar problem to this last night after upgrading to OX 10.9 Mavericks. Note: I'm using homebrew, I had tried brew install hg and brew update but they didn't work, as everyone's systems are different I would recommend running brew doctorto see what your particular issue is, in my case I had the following;
Warning: You have unlinked kegs in your CellarLeaving kegs unlinked can lead to build-trouble and cause brews that depend onthose kegs to fail to run properly once built. Run `brew link` on these: mercurialSo to fix my mercurial issue I ran;
brew link --overwrite mercurial
It all works now with the latest Homebrew. If you don't have Homebrew installed you can find it at http://brew.sh along with easy instructions.
Once you do have Homebrew, I recommend doing
$ brew update$ brew upgradeTo install Mercurial just do
$ brew install hgPainless.
Mavericks does ship with python 2.7.5 installed, so Mercurial should run just fine. You probably just need to fix or redo your install if the path to python changed.