8.3.7: Exclamat!on Po!nts
Write the function exclamation that takes a string and then returns the same string with every lowercase i replaced with an exclamation point. Your function should:

Convert the initial string to a list
Use a for loop to go through your list element by element
Whenever you see a lowercase i, replace it with an exclamation point in the list
Return the stringified version of the list when your for loop is finished
Here’s what an example run of your program might look like:

exclamation("I like music.")
# => I l!ke mus!c.

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MrRoyal MrRoyal · Answer 1 · 2021-12-08T20:53:05+01:00

The function is an illustration of loops.

Loop instructions are used to repeat operations

The function in Python, where comments are used to explain each line is as follows:

#This defines the function

def exclamation(myStr):

#This iterates through the string

for i in range(len(myStr)):

#This checks if the current character of the string is "i"

if myStr[i] == "i":

#If yes, this converts the string to a list

s = list(myStr)

#This replaces i with !

s[i] = '!'

#This gets the updated string

myStr = "".join(s)

#This returns the new string

return myStr

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