1. Python function that takes a list of words and return the longest word and the length of the longest one.

def longest_word():
    list_of_words = input("Enter list of words: ")
    length = 0
    
    for words in list_of_words.split():
        if len(words) > length:
            length = len(words)
            longest_word1 = words
            
    print("The Longest word is:",longest_word1,"\nLength of Longest one is:",len(longest_word1))
    
longest_word()

Enter list of words: Hello friends I am Learning Pyhton Programming
The Longest word is: Programming 
Length of Longest one is: 11

1. Python function to remove the nth index character from a nonempty string.

string = input("Enter a Non-Empty String:")
n = int(input("Enter the index of String to be removed:"))

def remove_index(string,n):
    
    start = string[:n]
    end = string[n+1:]
    return start + end

print("Modified String is:",remove_index(string,n))

Enter a Non-Empty String:Hello guys!!!!!
Enter the index of String to be removed:6
Modified String is: Hello uys!!!!!

1. Python function to get the last part of a string before a specified character.

string_2 = input("Enter the String: ")
character = input("Enter the specified character: ")

if character == "/":
    print(string_2.rsplit('/',1)[0])
elif character == "-":
    print(string_2.rsplit('-')[0])
elif character == ":":
    print(string_2.rsplit(':')[0])
    

Enter the String: abc.com/xyz-uvw
Enter the specified character: -
abc.com/xyz

1. Python function to sort a string lexicographically.

def string_sort(string_input):
    
    stringlist = string_input.split()
    stringlist.sort()
    
    string_op = ""
    
    for word in stringlist:
        string_op = string_op+word+" "
        
    return string_op

string_ip = input("Enter the String: ")


print("Original String: ",string_ip)
print("Sorted String: ",string_sort(string_ip))

Enter the String: vaishu is eating an orange
Original String:  vaishu is eating an orange
Sorted String:  an eating is orange vaishu 

1. Python function to remove spaces from a given string.

string_1 = input("Enter the String: ")

def remove_spaces(string_1):
    count = 0
    list_1 = []
    
    for i in range(len(string_1)):
        if string_1[i] != " ":
            list_1.append(string_1[i])
    return ''.join(list_1)


print(remove_spaces(string_1))

Enter the String: My name is Mahith Sai
MynameisMahithSai