Is it possible to return a boolean and a variable from a function in python
def foo(self, x):
if x > 5:
y = 2 #for workaround with pass by reference method
return true , y
# calling it by
i = 0
for i in range (0,10):
if foo(i):
ref_value = y #to get the reference value
Yes, your above code returns a tuple , you can return multiple values like that (in a tuple or a list, etc) , but you will have to accept them (unpack) all at the calling side as well (either accept them all, or accept the tuple/list as a single element). Example/Demo -
>>> def foo(i):
... if i > 5:
... y = 2
... return True, y
... return False,0
...
>>> for i in range(0,10):
... x,y = foo(i)
... if x:
... ret_value = y
... else:
... ret_value = 0
... print(ret_value)
...
0
0
0
0
0
0
2
2
2
2
>>> type(foo(6)) #Example to show type of value returned.
<class 'tuple'>
Yes, you would need to unpack both values from the returned result:
i = 0
for i in range (0,10):
cond, y = foo(i)
if cond:
ref_value = y
y = 2; return True, yis exactly the same asreturn True, 2.