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 …

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 …

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 …

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?

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 3 years ago Viewed 189k times

Nov 20, 2020 · 5 You're asking why the reverse method doesn't return a (reference to the) result, and instead modifies the list in-place. In the official python tutorial, it says this on the matter: You might …

A new Python checker was added to warn about inconsistent-return-statements. A function or a method has inconsistent return statements if it returns both explicit and implicit values ...

Mar 12, 2013 · If a function doesn't specify a return value, it returns None. In an if/then conditional statement, None evaluates to False. So in theory you could check the return value of this function for …