can I assign a default value to a python while loop?-CodePudding

I've got a while loop of the form:

while temp is True:
    do stuff
    if the outcome is what I want:
        temp = False

I seem to use this construct quite often. So my question is whether there is a way I can initialise temp in the while statement itself, rather than have to precede this with temp = True?

CodePudding user response：

You can use:

while True:
    do stuff
    if the outcome is what I want:
        break

CodePudding user response：

There is a way.

For example:

temp = True
while temp == True:
    do stuff
    if the outcome is what I want:
        temp = False

while temp == True:
    do stuff
    if the outcome is what I want:
        break

CodePudding user response：

Starting with Python 3.8, you can use an assignment expression (AKA walrus operator):

while temp := True:
    ...
    if ...:
        temp = False