File Name: b_variable_scope.py ```python from stylepy import h1, h2, h3, h4, h5, h6

Variable Scope

h1('\n >>>> Variable Scope Example')

helloWorld Function with outside variable

h2('\n >>>> helloWorld Function with outside variable')

type = 'World' def helloWorld(): h6('Hello ' + type + ' from helloWorld()')

Calling the function

helloWorld()

helloWorld Function with hoisting variable throws NameError: name 'hoistedVariable' is not defined

h6('\n >>>> helloWorld Function with hoisting variable throws NameError')

def helloWorld():

print('Hello ' + hoistedVariable + ' from helloWorld()')

helloWorld()

hoistedVariable = 'hoisted world'

Greet Function

h4('\n >>>> Greet Function passed with name variable') def greet(name): print('Hello ' + name)

greet() # will throws TypeError: greet() missing 1 required positional argument: 'name'

print(" >>>> when no parameter passed throws TypeError: greet() missing 1 required positional argument: 'name'")

h4(" >>>> passing name parameter returns Hello John") name = 'John' greet(name)

Global Variable

h4('\n >>>> Global and Local Variable Samples') myAge = 21

def afterGraduation(): myAge = 24 # myAge will be overwritten as 24. h6(f"inside afterGraduation: I'm {myAge} years old")

myAge will return global value 21.

h6(f"outside before afterGraduation call: I'm {myAge} year old") afterGraduation() h6(f"outside after afterGraduation call: I'm {myAge} year old")

Global Variable with global keyword.

h4('\n >>>> Global Variable with global keyword')

manhood = "bachelor"

def afterMarriage(): global manhood h6(f"inside afterMarriage before change: I'm {manhood}") manhood = "Husband" h6(f"inside afterMarriage after change: I'm {manhood}")

manhood will return global value Husband.

h6(f"outside before afterMarriage: I'm {manhood}") afterMarriage() h6(f"outside after afterMarriage: I'm {manhood}")```