Linuxのuniqコマンドに相当するコードをPythonで実装してみた - Qiita

import sys def uniq(f): previous_line = "" for line in f.readlines(): if previous_line == line: continue print(line, end="") previous_line = line def uniq_c(f): previous_line = "" count = 1 for line in f.readlines(): if previous_line == "": previous_line = line continue if previous_line == line: count += 1 continue print("{} {}".format(count, previous_line), end="") previous_line = line count = 1