[Bug-readline] vi-mode and python shell

[Carlos Pita]

Hi Chet,

I'm having problems using the some vi operators inside the python/ipython shell.

Say I have the following line with the cursor at position 0:

^xxxxxyxxxxx

In the bash prompt dty will result in

^yxxxxx

But inside the python shell... well, try it yourself, it's hard to
describe. Sometimes I'm not even able to return to insert mode without
cancelling the line. One thing is true: ty will work, but dty won't.

I don't know whether this is a regression or not. I downgraded python
and readline to some recent versions but to no avail. I have also
played with readline options inside python a bit (disabled
completions, incremented keyseq waiting time, etc.) with no better
luck.

Python 3.4.3
readline 6.3.008

Could you check this? I will report it to the python tracker in case
it's necessary.

Regards
--
Carlos