asunder by Bakuriu

import sys
t=sys.stdin.read()
c=[]
a=[x for x in range(65,123) if x not in [y for y in range(91,97)]]
for x in a:
\x09k=t.count(chr(x))
\x09c.append(k)
\x09print "%s: %s"%(chr(x),k) if len(str(k))==2 else "%s:  %s"%(chr(x),k)
\x09\x09

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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