What causes my function to return None at the end?

by

Because in Python, every function returns a value, and None is what is returned if you don’t explicitly specify something else.

What exactly did you expect print(printmult(30)) to do? You’ve asked it to evaluate printmult(30), and then print whatever results from that. Something has to result from it, right? Or were you maybe expecting some kind of exception to be raised?

Please be sure you understand that printing and returning are not the same thing.

More Related Contents:

  1. Python – Class.function().function()
  2. Function to return results in a dictionary in Python
  3. Why does this recursion return 0?
  4. Why is the output of my function printing out “None”?
  5. Passing a dictionary to a function as keyword parameters
  6. Why does using `arg=None` fix Python’s mutable default argument issue?
  7. unpacking function argument [duplicate]
  8. Is there an easy way to pickle a python function (or otherwise serialize its code)?
  9. Doing something before program exit
  10. What is the naming convention in Python for variable and function?
  11. Difference between methods and functions, in Python compared to C++
  12. How do I call a function from another .py file?
  13. Python function as a function argument?
  14. Overloaded functions in Python
  15. How to apply a function on every row on a dataframe?
  16. Setting variables with exec inside a function
  17. How can I make a deepcopy of a function in Python?
  18. Function chaining in Python
  19. Efficient evaluation of a function at every cell of a NumPy array
  20. Why should functions always return the same type?
  21. In Python, what does ” mean?
  22. break and continue in function
  23. Python functions with multiple parameter brackets
  24. How to make function decorators and chain them together in Python?
  25. I have a string whose content is a function name, how to refer to the corresponding function in Python?
  26. Check if all values in list are greater than a certain number
  27. Possible to change a function’s repr in python?
  28. python function default parameter is evaluated only once? [duplicate]
  29. How can we force naming of parameters when calling a function?
  30. Store functions in list and call them later [duplicate]

Leave a Comment