属性エラー 'str'オブジェクトには属性 '読み取り'がありません。 Pythonの2.7

Question

from sys import argv 

from os.path import exists 

print "Look what I can do" 

script,This_file,That_file,=argv 

print "I'm gonna paste this into that" 

Whatever=open(That_file) 

Whatevers = That_file.read() 

"So That_file is %d bytes long"%len(Whatever) 

"Do the input and output files exist?"% exists(This_file,That_file) 

Huh=open(That_file) 

Huh.write(Whatever) 

    AttributeError: 'str' object has no attribute 'read' 

Answer 1

それはです：

Whatever=open(That_file) 
Whatevers = Whatever.read()