Getting only element from a single-element list in Python?
When a Python list is known to always contain a single item, is there way to access it other than:
You may ask, 'Why would you want to?'. Curiosity alone. There seems to be an alternative way to do everything in Python.
singleitem, = mylist # Identical in behavior (byte code produced is the same), # but arguably more readable since a lone trailing comma could be missed: [singleitem] = mylist
Explicit use of iterator protocol:
singleitem = next(iter(mylist))
singleitem = mylist.pop()
singleitem = mylist[-1]
Set via single iteration
for (because the loop variable remains available with its last value when a loop terminates):
for singleitem in mylist: break
Many others (combining or varying bits of the above, or otherwise relying on implicit iteration), but you get the idea.