Python Tutorial - Scope - 006

Pada posting lalu kita bicara soal variabel lokal dan variabel general. Nah, dua variabel ini disebut variable, berdasarkan scope yang kita bicarakan.

Image - Jalan desa di Amerika.

Contoh Python Scope

# The code will not work

def f(x,y):

    print('you called f(x,y) with the value x = ' + str(x) + ' and y = ' + str(y))

    print('x + y = ' + str(x*y))

    z = 4 # z is lokal

z = 3

f(3,2)

# Function scope make code can be used

def f(x,y):

    g=3

    print('you called f(x,y) with the value x = ' + str(x) + ' and y = ' + str(y))

    print('x + y = ' + str(x + y)) # x + y, not x * y

    print(g)

f(3,2)

Output: 

you called f(x,y) with the value x = 3 and y = 2

x + y = 5

3

>>> 

Another example:

def f(x,y,z):

    return x+y+y

result = f(3,2,3)

print(result)

Output: 7 ....> because: x + y + y = 3+2+2 = 7

Nested functions and variabel scope

def highFive():

    return 5

def f(x,y):

    g = highFive()

    return x+y+g

result = f(3,2)

print (result)

Output= 10

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