Write a program to find the difference between two times - Python

Write a program to find the difference between two times

# function to obtain the time in minutes form 
def difference(h1, m1, h2, m2): 

    # convert h1 : m1 into minutes 
    t1 = h1 * 60 + m1 

    # convert h2 : m2 into minutes  
    t2 = h2 * 60 + m2 

    if (t1 == t2):  
        print("Both are same times") 
        return 
    else: 

        # calculating the difference 
        diff = t2-t1 

    # calculating hours from difference 
    h = (int(diff / 60)) % 24

    # calculating minutes from difference 
    m = diff % 60

    print(h, ":", m) 

# Driver's code 
if __name__ == "__main__": 

    difference(7, 20, 9, 45) 
    difference(15, 23, 18, 54) 
    difference(16, 20, 16, 20) 

Write program to find yesterday, today and tomorrow

# Import datetime and timedelta 
# class from datetime module 
from datetime import datetime, timedelta 


# Get today's date 
presentday = datetime.now() # or presentday = datetime.today() 

# Get Yesterday 
yesterday = presentday - timedelta(1) 

# Get Tomorrow 
tomorrow = presentday + timedelta(1) 


# strftime() is to format date according to 
# the need by converting them to string 
print("Yesterday = ", yesterday.strftime('%d-%m-%Y')) 
print("Today = ", presentday.strftime('%d-%m-%Y')) 
print("Tomorrow = ", tomorrow.strftime('%d-%m-%Y')) 

Write a program to remove all the characters except numbers and alphabets

import re 

# initialising string 
ini_string = "123abcjw:, .@! eiw"

# printing initial string 
print ("initial string : ", ini_string) 

result = re.sub('[\W_]+', '', ini_string) 

# printing final string 
print ("final string", result) 

Write a program to merge dict using update() method

def Merge(dict1, dict2):
    return(dict2.update(dict1))

# Driver code
dict1 = {'a': 10, 'b': 8}
dict2 = {'d': 6, 'c': 4}

print(Merge(dict1, dict2))
print(dict2)

Write a program to print even length words in a string

def printWords(s): 
    s = s.split(' ')  
    for word in s:  
        if len(word)%2==0: 
            print(word)  
# Driver Code  
s = "hello world" 
printWords(s)

Write a program to delete all duplicate letters in a string

def removeDuplicate(str): 
    s=set(str) 
    s="".join(s) 
    print("Without Order:",s) 
    t="" 
    for i in str: 
        if(i in t): 
            pass
        else: 
            t=t+i 
        print("With Order:",t) 

str="helloworld"
removeDuplicate(str)