HW 4:
ConditionOwls

Homeworks are an opportunity to engage with the material and practice your programming skills. To support you, solutions will be available on moodle. It is your responsibility to engage with them in a way that strategically moves your learning forward. You should:

• Attempt the homework without looking at the solutions.

• Review the solutions; if you were stuck, you may revise your homework. You may find yourself iteratively reviewing and revising to best support your learning.

• When you submit your homework, you will be required to complete a self-assessment and reflection:

1. Give yourself an assessment mark on the initial attempt:

✘ if you did not complete it

✓- if you completed it, but were very far from the solution

✓ if you completed it and essentially had the solution

✓+ if you completed it correctly, including precise communication

? if you are unsure as to whether or not you completed it

2. Provide a short reflection as to why you earned that mark, such as:

• I did not understand how to get started, and it was too close to the deadline to visit support hours.

• I got stumped by a bug where my program entered an infinite loop.

3. If you used the solutions to revise your work, describe what you needed to change, as in:

   • I modified the style of my conditional when I saw a simpler approach in the solutions.

   • I was so stuck that the majority of my submission is based on the solutions.

4. Ask specific questions on portions that are still confusing, such as:

   • Why does it cause an error when I returned "1" instead of 1?

[Optional] Provide one hint for the homework (to your past self or future student).

def countVowels( word:str ) -> int:

""" Count and return the number of vowels (a, e, i, o, u) in a word. """

lowerWord:str = word.lower()

numAs:int = lowerWord.count( "a" )

numEs:int = lowerWord.count( "e" )

numIs:int = lowerWord.count( "i" )

numOs:int = lowerWord.count( "o" )

numUs:int = lowerWord.count( "u" )

return numAs + numEs + numIs + numOs + numUs

def buggy1( word:str ) -> int:

""" Count and return the number of vowels (a, e, i, o, u) in a word. """

lowerWord:str = word.lower()

numVowels:int = 0

for letter in lowerword:

if letter == "a":

numVowels = 1

if letter == "e":

numVowels = 1

if letter == "i":

numVowels = 1

if letter == "o":

numVowels = 1

if letter == "u":

numVowels = 1

return numVowels

def buggy2( word:str ) -> int:

""" Count and return the number of vowels (a, e, i, o, u) in a word. """

lowerWord:str = word.lower

numVowels:int = 0

for letter in lowerWord:

for vowel in "aeiou":

if letter = vowel:

numVowels += 1

else:

numVowels = 0

return numVowels

def buggy3( word:str ) -> int:

""" Count and return the number of vowels (a, e, i, o, u) in a word. """

lowerWord:str = word.lower()

numVowels:int = 0

for vowel in "AEIOU":

for letters in word:

if letter == vowel

numVowels += 1

return numVowels

def hasRepeatedLetter( word:str ) -> bool:

""" Returns True if there is a repeated letter in the word

and False otherwise.

Examples: buggy4( "hello" ) -> True since "l" is repeated

buggy4( "elephant" ) -> True since "e" is repeated

buggy4( "dinosaur" ) -> False since no letter is repeated. """

alphabet:str = "abcdefghijklmnopqrstuvwxyz"

lowerWord:str = word.lower()

for letter in alphabet:

if lowerWord.count( letter ) > 1:

return True

# if we get here, it means we never entered

# the return True statement within the conditional within the loop

# so there must not have been a repeated letter

return False

def buggy5( word:str ) -> bool:

""" Returns True if there is a repeated letter in the word

and False otherwise.

Examples: buggy4( "hello" ) -> True since "l" is repeated

buggy4( "elephant" ) -> True since "e" is repeated

buggy4( "dinosaur" ) -> False since no letter is repeated. """

lowerWord:str = word.lower()

for letter in lowerWord:

if letter.count( lowerWord ) > 1:

return True

# if we get here, it means we never entered

# the return True statement within the conditional within the loop

# so there must not have been a repeated letter

return False

def buggy6( word:str ) -> int:

""" Returns True if there is a repeated letter in the word

and False otherwise.

Examples: buggy4( "hello" ) -> True since "l" is repeated

buggy4( "elephant" ) -> True since "e" is repeated

buggy4( "dinosaur" ) -> False since no letter is repeated. """

lowerWord:str = word.lower()

# walk over the string

for i in range(len(lowerWord)):

# store the current letter

currentLetter:str = lowerWord[i]

# get the letters following the current one

followingLetters:str = lowerWord[i+1:]

# for each following letter

for followingLetter in followingLetters:

# check if it's the same as the curernt one

if followingLetters == currentLetter:

# if so, we found a repeat!

return True

else:

return False

def testVowelFunctions(testWords:list) -> None:

passedTestsBuggy1:int = 0

passedTestsBuggy2:int = 0

passedTestsBuggy3:int = 0

for word in testWords:

correctCount:int = countVowels( word )

buggy1Count:int = buggy1(word)

if buggy1Count != correctCount:

print( f"TEST FAILED: buggy1(\"{word}\")... {buggy1Count} != {correctCount}" )

else:

passedTestsBuggy1 += 1

buggy2Count:int = buggy2(word)

if buggy2Count != correctCount:

print( f"TEST FAILED: buggy2(\"{word}\")... {buggy2Count} != {correctCount}" )

else:

passedTestsBuggy2 += 1

buggy3Count:int = buggy3(word)

if buggy3Count != correctCount:

print( f"TEST FAILED: buggy3(\"{word}\")... {buggy3Count} != {correctCount}" )

else:

passedTestsBuggy3 += 1

if passedTestsBuggy1 == len(testWords):

print( "buggy1 passed all tests!" )

if passedTestsBuggy2 == len(testWords):

print( "buggy2 passed all tests!" )

if passedTestsBuggy3 == len(testWords):

print( "buggy3 passed all tests!" )

def testRepeatFunctions(testWords:list) -> None:

passedTestsBuggy5:int = 0

passedTestsBuggy6:int = 0

for word in testWords:

repeatExists:bool = hasRepeatedLetter( word )

buggy5Check:bool = buggy5(word)

if buggy5Check != repeatExists:

print( f"TEST FAILED: buggy5(\"{word}\")... {buggy5Check} != {repeatExists}" )

else:

passedTestsBuggy5 += 1

buggy6Check:bool = buggy6(word)

if buggy6Check != repeatExists:

print( f"TEST FAILED: buggy6(\"{word}\")... {buggy6Check} != {repeatExists}" )

else:

passedTestsBuggy6 += 1

if passedTestsBuggy5 == len(testWords):

print( "buggy5 passed all tests!" )

if passedTestsBuggy6 == len(testWords):

print( "buggy6 passed all tests!" )

def main():

testWords:list = ["", "HELLO", "Mount", "Holyoke", "College", "owl", "dinosaur", "Elephant"]

testVowelFunctions( testWords )

testRepeatFunctions( testWords )

if __name__ == "__main__":

main()

What is the most prominent part of your nightly routine?

A. Reading

B. Teeth-brushing

C. Having an existential crisis

D. Pajamas

(A/B/C/D): C

Which most accurately describes your work ethic?

A. Procrastinating

B. Diligent

C. Lazy

D. Well-paced

(A/B/C/D): A

In the morning you feel...

A. Like I've been hit by a bus

B. Reasonably rested

C. Groggy

D. Like a million bucks

(A/B/C/D): C

You're 100% night owl! (You're pretty much nocturnal, and that's okay! Embrace the night.)

OR

What is the most prominent part of your nightly routine?

A. Reading

B. Teeth-brushing

C. Having an existential crisis

D. Pajamas

(A/B/C/D): B

Which most accurately describes your work ethic?

A. Procrastinating

B. Diligent

C. Lazy

D. Well-paced

(A/B/C/D): D

In the morning you feel...

A. Like I've been hit by a bus

B. Reasonably rested

C. Groggy

D. Like a million bucks

(A/B/C/D): C

You're 50% Night Owl! (Staying up late or waking up early, both are equally easy, or difficult, for you.)

As per the Syllabus: you should use these to support your learning. Do not look at solutions until you have attempted the work. It is up to you to best leverage this resource.