function.py

# Creating a Function
# In Python a function is defined using the def keyword:

def my_function():
  print("Hello from a function")


# Calling a Function
# To call a function, use the function name followed by parenthesis:

def my_function():
  print("Hello from a function")

my_function()

# Arguments

def my_function(fname):
  print(fname + " Refsnes")

my_function("Emil")
my_function("Tobias")
my_function("Linus")

# Number of Arguments

def my_function(fname, lname):
  print(fname + " " + lname)

my_function("Emil", "Refsnes")

# Arbitrary Arguments, *args

def my_function(*kids):
  print("The youngest child is " + kids[2])

my_function("Emil", "Tobias", "Linus")

# Keyword Arguments

def my_function(child3, child2, child1):
  print("The youngest child is " + child3)

my_function(child1 = "Emil", child2 = "Tobias", child3 = "Linus")

# Default Parameter Value

def my_function(country = "Norway"):
  print("I am from " + country)

my_function("Sweden")
my_function("India")
my_function()
my_function("Brazil")

# Return Values

def my_function(x):
  return 5 * x

print(my_function(3))
print(my_function(5))
print(my_function(9))

# Passing a List as an Argument

def my_function(food):
  for x in food:
    print(x)

fruits = ["apple", "banana", "cherry"]

my_function(fruits)

# The pass Statement

def myfunction():
  pass