ssh kitten: Allow using python instead of the shell on the server

docs/changelog.rst

@@ -13,6 +13,9 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 
 - diff kitten: Implement recursive diff over SSH (:iss:`3268`)
 
+- ssh kitten: Allow using python instead of the shell on the server, useful if
+  the shell used is a non-POSIX compliant one, such as fish (:iss:`3277`)
+
 - Add support for the color settings stack that XTerm copied from us without
   acknowledgement and decided to use incompatible escape codes for.
 

docs/faq.rst

@@ -54,7 +54,12 @@ type it each time::
     alias ssh="kitty +kitten ssh"
 
 If for some reason that does not work (typically because the server is using a
-non POSIX compliant shell), you can use the following one-liner instead (it
+non POSIX compliant shell), you can try using it with python instead::
+
+    kitty +kitten ssh use-python myserver
+
+If that also fails, perhaps because python is not installed on the remote
+server, use the following one-liner instead (it
 is slower as it needs to ssh into the server twice, but will work with most
 servers)::