What's the difference between pass and continue in python
for-loop, python
Solution
The `pass` keyword is a "no-operation" keyword. It does exactly nothing. It's often used as a placeholder for code which will be added later:
if response == "yes":
pass # add "yes" code later.
The `continue` keyword, on the other hand, is used to restart a loop at the control point, such as with:
for i in range(10):
if i % 2 == 0:
continue
print(i)
That loop will only output the odd numbers since `continue` returns to the loop control statement (`for`) for iterations where `i` is even.
Contrast that with the exact same code, but using `pass` in place of `continue`:
for i in range(10):
if i % 2 == 0:
pass
print(i)
That loop prints all the numbers in the range, since `pass` does not return to the loop control statement for even (or any) values of `i`. It simply drops through to the `print` statement.
In terms of an empty `for` loop, you're correct that they're functionally identical. You can use either of:
for i in range(10):
pass
for i in range(10):
continue
Problem
My test shows that both `pass` and `continue` can be used equivalently to construct a empty `for`-loop for test purpose. Are there any difference between them?