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#!/usr/bin/env python
#
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
import sys
import operator
def count(infile):
# infile should be a simple file with author names on each line
counts = {}
for line in infile:
author = line.strip()
counts[author] = counts.get(author, 0) + 1
return counts
def histogram(counts, width):
max_len = max([len(author) for author in counts.keys()])
max_count = max(counts.values())
adjustor = float(max_count) / (width - max_len - 3)
for author, count in sorted(counts.items(),
key=operator.itemgetter(1), # sort on count
reverse=True):
print "%-*s | %s" % (max_len, author, "X"*int(count/adjustor))
if __name__ == '__main__':
if len(sys.argv) < 2:
### TODO: Automagically determine terminal width
width = 80
else:
width = int(sys.argv[1])
histogram(count(sys.stdin), width)
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