29.1.1. Local variables - an overview
def test1():
a=50
b=80
print(a,b)
#complete the function
def test2():
a=22
b=44
print(a,b)
#complete the function
test1()
test2()
29.1.2. Global variable
globvar = input()
def test1():
global globvar
#declare the global variable as "globvar" and return it.
return(globvar)
def test2():
global globvar
globvar = "Good Morning"
return(globvar)
#return the globvar
print(test1())
print(test2())
29.1.3. Writing a local and Global variables example
#Program to illustrate Global and Local Variables
a = int(input("a: "))
def changeglobal():
global a
#declare varibale "a" as global
a=200
#Assign a value 200 to the varibale a
def changelocal():
a=500
#Assign a value 500 to the varibale a
print("local a value:", a)
print("global a before function call:", a)
changeglobal()
changelocal()
print("global a after function call:", a)
29.2.1. Function composition - an overview
def square(x):
# find square of a given number and return the result
return x**2
def double(x):
return x*2
# double the given number and return the result
num = int(input("num: "))
print("double, squaring the value:", square(double(num)))
29.2.2. Writing a function composition example
def compose (*functions):
def inner(arg):
for f in functions:
arg=f(arg)
return arg
return inner
def square (x):
return(x**2)
def increment (x):
return x+1
def half (x):
return x/2
x=int(input())
composed = compose(square, increment, half)
print(composed(x))
composed = compose(square, increment)
print(composed(x))
