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import socket
host = socket.gethostname()
print host

Sometimes we want to iterate over a dictionary in sorted order of value. Here is the code:

d = {”a”:1, “b”:5, “c”:2, “be”:30}
for k in sorted(d.keys(), lambda x,y:d[x]-d[y]):
print “%s=%s” % (k, d[k])

# output is:
a=1
c=2
b=5
be=30