Python做文本按行去重的实现方法

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程序如下:

line_dict_uniq = dict()
with open('1.txt','r') as fd:
for line in fd:
key = line.split(' ')[0]
if key not in line_dict_uniq.values():
line_dict_uniq[key] = line
else:
continue
print line_dict_uniq 
print len(line_dict_uniq)
# 这里是打印了不重复的行（重复的只打印一次），实际再把这个结果写入文件就可以了，
# 就不写这段写入文件的代码了

line_dict_uniq = dict()
with open('1.txt','r') as fd:
for line in fd:
key = line.split(' ')[0]
if key not in line_dict_uniq.keys():
line_dict_uniq[key] = line
else:
continue
print line_dict_uniq
print len(line_dict_uniq)