the program I posted did not have any of the errors or warnings that you report. This most probably means that the error is somewhere in the changes you made to the code.
Although I have some ideas on what might be wrong in your program (along the hints supplied by other monks), we can't fix a program that we don't see. The only way we can help you is if you show the code you're now using, with the changes you made.
In reply to Re^3: How to format fasta file
by Laurent_R
in thread How to format fasta file
by andyBio
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