You might find it easier if your consider the file as a long string, one that happens to contain embedded newline characters.
IMHO this qualifies as a particularly bad answer since he specifically pointed out that his file is large and it is always recommended not to slurp large files all at once if possible. Now I don't see anything here that suggests this to be necessary...

In reply to Re^2: Genbank file parsing by blazar
in thread Genbank file parsing by Anonymous Monk

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