[python-committers] Guidance on merging(?)

Hi,

My hg skills are still fairly basic, and I'm looking for somebody who can mentor me (or at least point me in the right direction) with respect to making the same change across multiple versions of Python.

I have just made a one-line change to the 3.6 (default) branch:

https://hg.python.org/cpython/rev/2bf4a02f3570

and I'll like to apply it to 3.4 and 3.5 as well. I'm not sure if this is the right language: is this called a merge?

Can somebody point me at the right way to handle this? Last time I had a change to apply to all three versions, I manually applied it individually to each branch. I take it that's the wrong way to do it.

Thanks,

-- Steve