What does the return statement do? How should it be used in Python? How does return differ from print? See also Often, people try to use print in a loop inside a function in order to see multiple ...

Using return None This tells that the function is indeed meant to return a value for later use, and in this case it returns None. This value None can then be used elsewhere. return None is never used if …

Mar 27, 2012 · Consider the following: with open (path, mode) as f: return [line for line in f if condition] Will the file be closed properly, or does using return somehow bypass the context manager?

I would like to return two values from a function in two separate variables. What would you expect it to look like on the calling end? You can't write a = select_choice(); b = select_choice() because that …

We can make a tuple right on the return line; or we can use a dictionary, a namedtuple (Python 2.6+), a types.simpleNamespace (Python 3.3+), a dataclass (Python 3.7+), or some other class (perhaps …

Oct 24, 2008 · Yield in Python used to create a generator function. Generator function behaves like an iterator, which can be used in loop to retrieve items one at a time. When a generator function is …

The constructor takes a function that is called with the key and should return the value for the dictionary. This value is then stored and retrieved from the dictionary next time.

Jul 4, 2020 · How can I use `return` to get back multiple values from a loop? Can I put them in a list? Asked 8 years, 5 months ago Modified 2 years, 11 months ago Viewed 188k times

Feb 8, 2012 · Since the return statement terminates the execution of the current function, the two forms are equivalent (although the second one is arguably more readable than the first). The efficiency of …

Say I have a Python function that returns multiple values in a tuple: def func(): return 1, 2 Is there a nice way to ignore one of the results rather than just assigning to a temporary variabl...