def get_friends(cache: DbfilenameShelf = None, name: str = SHLOMO):
if cache is not None:
friends = cache.get(name)
if friends is not None:
return cache[name]
response = get_first_request(name)
first_page_singers = response[0]
parallel_searcher = response[1]
pages_range = response[2]
if not pages_range: # only 1 page
friends = first_page_singers
else:
with TPool(INNER_MAX_WORKERS) as pool:
next_pages_singers = pool.map(parallel_searcher, pages_range)
friends = first_page_singers.union(*next_pages_singers)
if cache is not None:
cache[name] = friends
cache.sync()
return friends
def sync(self):
# noinspection PyUnresolvedReferences
self._debug(f'Synchronizing...', header=f'Cache "{self.filename}"')
DbfilenameShelf.sync(self)
# noinspection PyUnresolvedReferences
self._debug('Synchronized', header=f'Cache "{self.filename}"')