Sometimes you might want to use pdsh but you want the output to be ordered by server names. You can pipe this after the pdsh and it'll take care of the output. (shout out to @kalaomer for helping)

sort_pdsh

#!/usr/bin/env python
from sys import stdin
text = stdin.read()

from collections import defaultdict

ordered_output = defaultdict(list)
for line in text.split('\n'):
    server_name = line[:line.find(':')]
    server_output = line[line.find(':')+2:]
    ordered_output[server_name].append(server_output)

sorted_keys = sorted(filter(bool, ordered_output.keys()))
for key in sorted_keys:
    for value in ordered_output[key]:
        print("{key}: {value}".format(key=key, value=value))