Learning Python - Getting Started | Blog
- 1 minHELLO WORLD PROGRAM. print ‘Hello World!’
CREATE SOME VARIABLES IN PYTHON i = 4 int
type(i)
f = 4.1 float
type(f)
b = True boolean variable
s = “This is a string!”
print s
my_list = [] list of integers my_list = [1, 2, 3] print my_list for i in my_list: addition = i+i print addition
list with mixed datatypes my_list = [1, “Hello”, 3.4] print my_list
my_list = [“mouse”, [8, 4, 6], [‘a’]] print my_list
my_list = [‘p’,’r’,’o’,’b’,’e’]
print(my_list[0]) print(my_list[2])
empty set() a = set()
set of integers my_set = {1, 2, 3} print(my_set)
for s in my_set: print s
set of mixed datatypes my_set = {1.0, “Hello”, (1, 2, 3)} print(my_set)
set do not have duplicates Output: {1, 2, 3, 4} my_set = {1,2,3,4,3,2} print(my_set)
empty dictionary my_dict = {} dictionary with integer keys my_dict = {1: ‘apple’, 2: ‘ball’} for key, value in my_dict.iteritems(): print “key =”,key,”value =”,value
dictionary with mixed keys my_dict = {‘name’: ‘John’, 1: [2, 4, 3]} print my_dict
num = 3 if num > 0: print(num, “is a positive number.”)
num = -1 if num > 0: print(num, “is a positive number.”)
num = -5 num = 0 if num >= 0: print(“Positive or Zero”) else: print(“Negative number”)
if num > 0: print(“Positive number”) elif num == 0: print(“Zero”) else: print(“Negative number”) def addition(x): y = x + 2 return y i = 5 addition(i)
square = lambda x: x*x square(2)
class Arithmetic_operations:
def addition(self,a,b): print ‘additon method’,a+b
def sub(self,a,b): print ‘sub method’,a-b
obj1 =Arithmetic_operations() obj1.addition(10,20) obj1.sub(40,20)