I upgraded last week to 13.04 (via fresh install) and have separately attempted to install tortoiseHg using Software Center and command line, both apparently successful. The problem is when I try to launch the application, nothing happens. I have also tried to launch from commandline using thg, but again without success. Is it likely that I have missed a dependency, or is there a problem with Tortoise in 13.04?
It's known to not work with 13.04, so it's not your fault.
There's a bug report on launchpad, and Kostya Vasilyev has recommended the following workaround:
I've been running TortoiseHG and Mercurial from these PPAs, they need to be installed together (thg requires a certain range of hg verisons)...
There are no "raring" versions, but the ones for "quantal" have been working just fine
So you can use this until the bundled version is fixed.