Walrus, Scope, Global, Nonlocal
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# Walrus Operator
txt = "helloooooooo"
if (n := len(txt)) > 10:
print(f"too long - {n} elements")
while (n := len(txt)) > 1:
print(n)
txt = txt[:-1]
print(txt)
# Scope - what variables do I have access to?
def function():
total = 0
# print(total) - won't work bc of function scope
# Scope rules
#1 - start w local
#2 - parent local?
#3 - global
#4 - built in python functions
print("\n")
#Global
total = 0
def counter():
global total
total += 1
return total
counter();
counter();
print(counter());
print("\n")
# Non Local
def outer():
x = "local"
def inner():
nonlocal x
x = "nonlocal"
print("inner: ", x)
inner()
print("outer: ", x)
outer()
Python
INFO