python function

1#Letters, Nums,
2#& underscores
3#only, can't	=7  
4#start w/ num	|		  _ 5 is the default value if no
5# 	  |			|		 |  value is passed
6#	  v         v        v
7def funcName(param1, param2=5): #The colon terminates func header 
8	str(param1) #Typecasting is temparary
9    strVar = str(param1) # To make typecast perma, assign to var
10    param1 = param2 # 5 is passed to param1 
11    return param1 # 5 is returned
12#	  ^      ^
13#     |		 |_ return value is optional, if no return value, func 
14  #Optional		will end returning to func call
15  #return
16
17x = funcName(7)
18print(x) # prints 5

1
2  def my_function():
3  print("Hello from a function")
4
5
6  my_function() 

1def function():
2  print('This is a basic function')
3  
4function()
5// Returns 'This is a basic function'
6
7def add(numA, numB):
8  print(numA+numB)
9  
10add(1,2)
11// Returns 3
12
13def define(value):
14  return value
15
16example = define('Lorem ipsum')
17print(example)
18// Returns 'Lorem ipsum'
19
20

1def name():#name of the def(function);
2  print("Hallo, World!")#Output is Hallo, World!;
3  
4name()#Name of the def, the programm will jump to the def;
5
6#output:
7#Hallo, World!

1# Defines Function
2def my_function():
3  print("Hello")
4  print("Bye")
5
6# Calls Function
7my_function()

1# specify the type of arguments and it expected return type
2#(int, str, list...)
3# tis wil make the code easyer to read
4
5def foo(value:int) -> None:
6	print(value)
7
8foo() # run foo
9
10def foo2(value:str) -> str:
11	value += "Hello "
12	print(value)
13	return value
14
15value_of_foo2 = foo2() # run the function and put its return value in a var
16