Why Am I Getting Unwanted Newline In My String?

This should be so simple, it's silly. But I can't get it to work. I have a header which I define while reading a file: if '[gene=env]' in line or '[gene=HIV2gp7]' in line:

Solution 1:

I'm assuming you're getting your lines from a file using readline or readlines - if so, each line will end with a \n (newline) character. You need to strip those off:

line = line.rstrip('\n')