Example 1: python functions
def myFunction(say): #you can add variables to the function
print(say)
myFunction("Hello")
age = input("How old are you?")
myFunction("You are {} years old!".format(age))
#this is what you get:
Hello
How old are you?
>>11 #lol my real age actually
You are 11 years old!
Example 2: python functions
# first we have to write 'def'
# then our function name followed by ()
# and a ':' abd defining block of code
def multiply(): # naming convention could be same as variable for functions
product = 10.5 * 4
return product
product = multiply()
print(product)
Example 3: create function in python
def myFunction():
print('I am running in a function!')
Example 4: python funtion
def nameOfFunction(something):
return something
Example 5: python function arguments
#*args and **kwargs are normally used as arguments when calling the function.
#*args returns as tuple and **kwargs returns as dictionary.
#*args and **kwargs let you write functions with variable number of arguments in python.
def func(required,*args,**kwargs):
return f"{required} {args} {kwargs}"
func("Nagendra",5,32,2,1,23,) #output == 'Nagendra (5, 32, 2, 1, 23) {}'
func("Nagendra",5,32,2,1,23,key1="55",key2="75") #output == "Nagendra (5, 32, 2, 1, 23) {'key1': '55', 'key2': '75'}"
#Very understable example of args.
#Given n number of arguments in a function calculate its average
def average(*args):
'''
As we already know *args means collection of values in a tuple.
INPUT: arguments are given. example average(4,10,)
OUTPUT: average of two numbers (4+10)/2 == 14
'''
return sum(args)/len(args)
average(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15) #output == 8.0