Need help with Python....please paste indented code here 4. Implement the following to simulate how websites ensure that everyone has a unique username. a) Make a list of five or more usernames called current_users. b) Request an input of username. c) Print a message, Sorry XXX, that name is taken and also display the current user list if the input username has already been used. XXX is the input user name. d) Print a message, Great, XXX is still available and also display the updated user list if the username has not been used. e) Make sure your comparison is case insensitive. If 'John' has been used, 'JOHN' or ‘john’ should not be accepted. Example Output 1 Enter your user name: TOM Sorry TOM, that name is taken. Current users: [‘admin’, ‘tom’, ‘jerry’, ‘Dora’, ‘GEORGE’] Example Output 2 Enter your user name: curiousGeorge Great, curiousGeorge is still available. Updated users: [‘admin’, ‘tom’, ‘jerry’, ‘Dora’, ‘GEORGE’, ‘curiousGeorge’] 5. Implement the following to search a letter in a list. a) Create a list named vehicles: car, Truck, boat, PLANE. b) Request a user input for a search letter. c) Use the decision structure in a for loop to search all the items which contains the input letter (ignoring case) in the list. d) Print the item and its position in vehicles if it exists. Otherwise, print the statement indicating it does not contain the letter to search. e) Print the error message if more than one letter is entered. Example Output 1 Vehicles = [‘car’, ‘Truck’, ‘boat’, ‘PLANE’] Enter a search letter: a car contains ‘a’ and it is in position 0. Truck does not contain ‘a’. boat contains ‘a’ and it is in position 2. PLANE contains ‘a’ and it is in position 3. Example Output 2 Vehicles = [‘car’, ‘Truck’, ‘boat’, ‘PLANE’] Enter a search letter: A car contains ‘A’ and it is in position 0. Truck does not contain ‘A’. boat contains ‘A’ and it is in position 2. PLANE contains ‘A’ and it is in position 3. Example Output 3 Vehicles = [‘car’, ‘Truck’, Enter a search letter: z car does not contain ‘z’. Truck does not contain ‘z’. boat does not contain ‘z’. PLANE does not contain ‘z’. Example Output 4 Vehicles = [‘car’, ‘Truck’, Enter a search letter: abc Invalid search letter. ‘boat’, ‘PLANE’] ‘boat’, ‘PLANE’]
Need help with Python....please paste indented code here
4. Implement the following to simulate how websites ensure that everyone has a unique username.
a) Make a list of five or more usernames called current_users.
b) Request an input of username.
c) Print a message, Sorry XXX, that name is taken and also display the current user list if the input
username has already been used. XXX is the input user name.
d) Print a message, Great, XXX is still available and also display the updated user list if the username has
not been used.
e) Make sure your comparison is case insensitive. If 'John' has been used, 'JOHN' or ‘john’ should not be
accepted.
Example Output 1
Enter your user name: TOM
Sorry TOM, that name is taken.
Current users: [‘admin’, ‘tom’, ‘jerry’, ‘Dora’, ‘GEORGE’]
Example Output 2
Enter your user name: curiousGeorge
Great, curiousGeorge is still available.
Updated users: [‘admin’, ‘tom’, ‘jerry’, ‘Dora’, ‘GEORGE’, ‘curiousGeorge’]
5. Implement the following to search a letter in a list.
a) Create a list named vehicles: car, Truck, boat, PLANE.
b) Request a user input for a search letter.
c) Use the decision structure in a for loop to search all the items which contains the input letter (ignoring
case) in the list.
d) Print the item and its position in vehicles if it exists. Otherwise, print the statement indicating it does not
contain the letter to search.
e) Print the error message if more than one letter is entered.
Example Output 1
Vehicles = [‘car’, ‘Truck’, ‘boat’, ‘PLANE’] Enter a search letter: a
car contains ‘a’ and it is in position 0. Truck does not contain ‘a’.
boat contains ‘a’ and it is in position 2. PLANE contains ‘a’ and it is in position 3.
Example Output 2
Vehicles = [‘car’, ‘Truck’, ‘boat’, ‘PLANE’] Enter a search letter: A
car contains ‘A’ and it is in position 0. Truck does not contain ‘A’.
boat contains ‘A’ and it is in position 2. PLANE contains ‘A’ and it is in position 3.
Example Output 3
Vehicles = [‘car’, ‘Truck’,
Enter a search letter: z
car does not contain ‘z’.
Truck does not contain ‘z’.
boat does not contain ‘z’.
PLANE does not contain ‘z’.
Example Output 4
Vehicles = [‘car’, ‘Truck’,
Enter a search letter: abc
Invalid search letter.
‘boat’, ‘PLANE’]
‘boat’, ‘PLANE’]
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