擅长:python、mysql、java
<p>您可以使用<code>with statement</code>来确保文件将被关闭</p>
<pre><code>from __future__ import with_statement
with open('/Users/jonbra/Desktop/my_blast.xml', 'w') as outfile:
from Bio.Blast import NCBIXML
blast_records = NCBIXML.parse(result_handle)
blast_record = blast_records.next()
for alignment in blast_record.alignments:
for hsp in alignment.hsps:
outfile.write('>%s\n%s\n' % (alignment.title, hsp.sbjct))
</code></pre>
<p>或者使用<code>try ... finally</code></p>
<pre><code>outfile = open('/Users/jonbra/Desktop/my_blast.xml', 'w')
try:
from Bio.Blast import NCBIXML
blast_records = NCBIXML.parse(result_handle)
blast_record = blast_records.next()
for alignment in blast_record.alignments:
for hsp in alignment.hsps:
outfile.write('>%s\n%s\n' % (alignment.title, hsp.sbjct))
finally:
outfile.close()
</code></pre>