comparison gbk_to_fasta.py @ 3:1f00946b18c2 draft default tip

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author rijst
date Wed, 12 Dec 2012 09:09:45 -0500
parents cc961e057668
children
comparison
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2:7e46920d9664 3:1f00946b18c2
1 import sys
2
3 if len(sys.argv) < 3:
4 exit("Not enough arguments passed, pleas provide names of input- and output file")
5
6 input_name = sys.argv[1]
7 output_name = sys.argv[2]
8
9 from Bio import GenBank
10
11 try: seq_record = GenBank.RecordParser().parse(open(input_name))
12 except: exit("Error reading %s, check file correctness." % input_name)
13
14 try: out_file = open(output_name, 'w')
15 except IOError as e:
16 exit("Error trying to open '%s': {1}".format(e.errno, e.strerror))
17
18 accession = definition = ''
19 if seq_record.accession[0] != '': accession = '|gb|'+seq_record.accession[0]
20 if seq_record.definition != '': definition = '|'+seq_record.definition
21
22 out_file.write(">gi|%s%s%s\n" % (seq_record.gi,accession,definition))
23
24 i = 0
25 while i < len(seq_record.sequence):
26 out_file.write(seq_record.sequence[i:i+70]+"\n")
27 i += 70
28
29 out_file.close()