default keyword arguments python code example
Example 1: default values python
class Test:
def __init__(self, val, num = 0):
self.val = val
self.num = num
# you can write this:
t = Test(1)
print(t.num) # prints 0
# OR this
t = Test(1, 2)
print(t.num) # prints 2
Example 2: python function parameters default value
def F(a, b=None):
if b is None:
b = []
b.append(a)
return b