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'highest priority.')
else:
priority = new_priority
except IndexError:
priority = 0 if new_priority is None else new_priority
self_data.appendleft((item, priority))
self_items = self.items
maxlen = self._maxlen
try:
self_items[item] += 1
except TypeError:
self_items[repr(item)] += 1
if maxlen is not None and maxlen < len(self_data):
self._poplast()"
1595,"def addlast(self, item, new_priority=None):
""""""Adds item to DEPQ as lowest priority. The default
starting priority is 0, the default new priority is
self.low(). Performance: O(1)""""""
with self.lock:
self_data = self.data
maxlen = self._maxlen
if maxlen is not None and maxlen == len(self_data):
return
try:
priority = self_data[-1][1]
if new_priority is not None:
if new_priority > priority:
raise ValueError('Priority must be <= '
'lowest priority.')
else:
priority = new_priority
except IndexError:
priority = 0 if new_priority is None else new_priority
self_data.append((item, priority))
self_items = self.items
try:
self_items[item] += 1
except TypeError:
self_items[repr(item)] += 1"
1596,"def popfirst(self):
""""""Removes item with highest priority from DEPQ. Returns
tuple(item, priority). Performance: O(1)""""""
with self.lock:
try:
tup = self.data.popleft()
except IndexError as ex:
ex.args = ('DEPQ is already empty',)
raise
self_items = self.items
try:
self_items[tup[0]] -= 1
if self_items[tup[0]] == 0:
del self_items[tup[0]]
except TypeError:
r = repr(tup[0])
self_items[r] -= 1
if self_items[r] == 0:
del self_items[r]
return tup"
1597,"def _poplast(self):
""""""For avoiding lock during inserting to keep maxlen""""""
try:
tup = self.data.pop()
except IndexError as ex:
ex.args = ('DEPQ is already empty',)
raise
self_items = self.items
try:
self_items[tup[0]] -= 1
if self_items[tup[0]] == 0:
del self_items[tup[0]]
except TypeError:
r = repr(tup[0])
self_items[r] -= 1
if self_items[r] == 0:
del self_items[r]
return tup"
1598,"def first(self):
""""""Gets item with highest priority. Performance: O(1)""""""
with self.lock:
try:
return self.data[0][0]