FAA File Sequence

Question

[Maria Eduarda]

I used this sequence of codes to print the sequences with a header:

but now that I'm trying to print without a header (the lines with > in the start) using this other code, I'm not getting it

Is there any other code that can do this, a more direct one or using the same sequence with sth different?

Answer 1

[Maria Eduarda]

I managed to solve it with this code:

openFile = open('genoma9.faa', 'r')
writeFile = open('updatedFile.txt', 'w')
for txtLine in openFile .readlines():
    if not (txtLine.startswith('>WP')):
        print(txtLine)
        writeFile.write(txtLine)
writeFile.close()

openFile.close()

Answer 2

[Pierre Lindenbaum]

The read() method returns the specified number of bytes from the file. Default is -1 which means the whole file.

here you read the whole file. If the file is too large, it won't fit in memory.

Is there any other code that can do this

iterate over each line, fill the name and the sequence of the current sequence.

see Correct Way To Parse A Fasta File In Python