hi what is the correct way to represent blank lines in python (while iterating a file) without regexp? I know one way is to use re.search((line,r'^$') to grab a blank line, but i wanna try not to use regexp... is it 1) if line == ''": dosomething() (this also means EOF right? ) 2) if line is None: dosomething() 3) if not line: dosomething() thanks
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