比较并打印python中的大写字符串

Compare and print Uppercase string in python

我需要比较我的grepoutput.txt和mylist中的单词，并打印出那些常见的，但得到的个别字母作为输出，没有任何比较。请帮助。谢谢您。

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MyList = ['WORD1', 'WORD2', 'WORD3']

file = open('/home/~/grepoutput.txt','r')
data = file.read()
file.close()

for line in data:
for content in line.split():
if content in MyList:
print content

grepoutput.txt包含：你好世界

单词1单词2单词3单词4

我也试过用集合逻辑，但没用

1 2	setoutput = set(MyList) & set(content) print setoutput

下面是输出：

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[]
searching now...
W
set(['W'])
O
set(['O'])
R
set(['R'])
D
set(['D'])
1
set(['1'])

set(['
'])
W
set(['W'])
O
set(['O'])
R
set(['R'])
D
set(['D'])
2
set(['2'])

set(['
'])
W
set(['W'])
O
set(['O'])
R
set(['R'])
D
set(['D'])
3
set(['3'])

set(['
'])
H
set(['H'])
e
set(['e'])
l
set(['l'])
l
set(['l'])
o
set(['o'])

set(['
'])