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Metadata download: Make cover check multithreaded

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This commit is contained in:
Kovid Goyal 2010-06-24 12:06:34 -06:00
parent bb5ab06f3b
commit 985e65d386
1 changed files with 12 additions and 8 deletions
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20
src/calibre/ebooks/metadata/fetch.py
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@ -287,15 +287,19 @@ class HeadRequest(urllib2.Request):
def get_method(self):
return "HEAD"
def check_for_covers(items):
def do_cover_check(item):
opener = browser()
for item in items:
item.has_cover = False
try:
opener.open(HeadRequest(OPENLIBRARY%item.isbn), timeout=5)
item.has_cover = True
except:
pass # Cover not found
item.has_cover = False
try:
opener.open(HeadRequest(OPENLIBRARY%item.isbn), timeout=5)
item.has_cover = True
except:
pass # Cover not found
def check_for_covers(items):
threads = [Thread(target=do_cover_check, args=(item,)) for item in items]
for t in threads: t.start()
for t in threads: t.join()
def search(title=None, author=None, publisher=None, isbn=None, isbndb_key=None,
verbose=0):