Stuff spaces at end of lines in file

Question

I am trying to read a fixed with file that has lines/records of different lengths. I need to stuff spaces at the end of the lines which are less than the standard length specified.

Any help appreciated.

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Answer 1

You could consider to use ljust string method. If line is a line read from your file:

line = line.ljust(50)

will stuff the end of the line with spaces to get a 50 characters long line. If line is longer that 50, line is simply copied without any change.