Question

Write a single command line to accomplish the following tasks in Python
1- Count the number of instances of each item in a list and produce another list of lists containing each item and its count. (Use the list count method)
2- Remove all words containing a capital letter at the end in a given string. (Use the join and ends with methods)
3- Remove every other letter from a string

Answer 1

Code:-

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###### Below Command Prints List of Lists Containing Each Item and It's Count
a = [1,2,3,2,1,3,3,1,1,3,4,4,2,22] # Initial List
print([[i,a.count(i)] for i in set(a)]) # It using list count method to print list of lists with each item and its count

#########
######### Below command Removes all words containing a capital letter at the end in a given string
string1 = "thiS is ChegG questioN" # Initial String
### It uses join and endswith method to remove all words containing a capital letter at the end in a given string
print(" ".join([(i if True not in [True if i.endswith(chr(j)) else False for j in range(65,91)] else "") for i in string1.split()]))   

######
##### Below command removes every other letter from a string
string2 = "This is Chegg question"
print(string2[::2]) ## It Uses Slicing Method For Removing other letter from string

Code Screenshots:-

Sample Output:-

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