Create a new program in Mu and save it as ps4.2.2.py and take the code below...

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Question

Create a new program in Mu and save it as ps4.2.2.py and take the code below...

Create a new program in Mu and save it as ps4.2.2.py and take the code below and fix it as indicated in the comments:

# Write a function called "in_parentheses" that accepts a 
# single argument, a string representing a sentence that
# contains some words in parentheses. Your function should
# return the contents of the parentheses.
#
# For example:
# in_parentheses("This is a sentence (words!)") -> "words!"
#
# If no text appears in parentheses, return an empty string.
# Note that there are several edge cases introduced by this:
# all of the following function calls would return an empty
# string:
#
# in_parentheses("No parentheses")
# in_parentheses("Open ( only")
# in_parentheses("Closed ) only")
# in_parentheses("Closed ) before ( open")
#
# You may assume, however, that there will not be multiple
# open or closed parentheses.

# Write your function here!

# Below are some lines of code that will test your function.
# You can change the value of the variable(s) to test your
# function with different inputs.
#
# If your function works correctly, this will originally
# print (including the blank lines):
# words!
#
# as he is doing right now
#
#
# !

print(in_parentheses("This is a sentence (words!)."))
print(in_parentheses("No parentheses here!"))
print(in_parentheses("David tends to use parentheses a lot (as he is doing right now). It tends to be quite annoying."))
print(in_parentheses("Open ( only"))
print(in_parentheses("Closed ) only"))
print(in_parentheses("Closed ) before ( open"))
print(in_parentheses("That's a lot of test cases(!)"))

engineering Computer-Science

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Answer 1

Answer #1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

If you are satisfied with the solution, please leave a +ve feedback : ) Let me know for any help with any other questions.

Thank You!
===========================================================================

def in_parentheses(sentence):

    open_index, end_index = -1,-1
    for i in range(len(sentence)):
        if sentence[i]=='(': open_index=i
        elif sentence[i]==')':end_index=i

    if open_index>end_index or open_index==-1 or end_index==-1:
        return ''
    else:
        return sentence[open_index+1:end_index]


print(in_parentheses("This is a sentence (words!)."))
print(in_parentheses("No parentheses here!"))
print(in_parentheses("David tends to use parentheses a lot (as he is doing right now). It tends to be quite annoying."))
print(in_parentheses("Open ( only"))
print(in_parentheses("Closed ) only"))
print(in_parentheses("Closed ) before ( open"))
print(in_parentheses("That's a lot of test cases(!)"))

====================================================================

1. Proje 1 def in_parentheses (sentence): 2 3 open_index, end_index = -1,-1 for i in range (len (sentence)): if sentence[i]==

Add a comment

Answer 2

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