What's the best practice for handling single-value tuples in Python?

Question

I am using a 3rd party library function which reads a set of keywords from a file, and is supposed to return a tuple of values. It does this correctly as long as there are at le

Answer 1

for your first problem you could check if the return value is tuple using

type(r) is tuple
#alternative
isinstance(r, tuple)
# one-liner
def as_tuple(r): return [ tuple([r]), r ][type(r) is tuple]

the second thing i like to use tuple([1]). think it is a matter of taste. could probably also write a wrapper, for example def tuple1(s): return tuple([s])