RemQ1
What is the value of 17 % 4?
a. 0
b. 1
c. 3
d. 4
------
a: RemQ2
b: PrecQ1
c: RemQ2
d: RemQ2
Jed Rembold & Fred Agbo
April 10, 2024
Suppose I had created the data structure to the right in order to
keep track of class sizes over the years. How would I access the size of
my Spring 2018 Mechanics (Phys 339) class?
data[2018]['classes']['Phys339']data[1]['Phys339']data[1]['classes']['Phys339']data[2018]['Phys339']data = [
{ 'year': 2017,
'semester': 'Fall',
'classes': {
'Phys221': 38,
'Phys110': 49
}
},
{ 'year': 2018,
'semester': 'Spring',
'classes': {
'Phys339': 16,
'Phys222': 35
}
},
{ 'year': 2018,
'semester': 'Fall',
'classes': {
'CS151': 26,
'Phys110': 45
}
}
]Identifying name for first question Text of first question ------ responseA: name of next question responseB: name of next question responseC: name of next question responseD: name of next question ...more questions/answers...
RemQ1
What is the value of 17 % 4?
a. 0
b. 1
c. 3
d. 4
------
a: RemQ2
b: PrecQ1
c: RemQ2
d: RemQ2
DivQ1 What is the value of 3 / 2? ----- 1: DivQ2 1.5: DivQ4 *: DivQ3DivQ2 The / operator produces floats. What is the value of 9 / 3? ----- 3: DivQ2 3.0: DivQ4 *: DivQ3DivQ3 What is the value of 5 / 4? ----- 1.25: DivQ4 *: DivQ2DivQ4 What is the value of 9 // 4? ----- 2: EXIT *: DivQ1
from TMCourse import read_course
def teaching_machine():
course = choose_course()
course.run()
def choose_course():
"""
Returns a course chosen by the user.
"""
while True:
try:
filename = input("Enter course name: ")
with open(filename + ".txt") as f:
return read_course(f)
except IOError:
print("Please enter a valid course name.")
# Startup code
if __name__ == "__main__":
teaching_machine()TMCourse Classfrom TMQuestion import TMQuestion, read_question
class TMCourse:
def __init__(self, questions):
"""Creates a new TMCourse object with the specified questions."""
self._questions = questions
def get_question(self, name):
"""Returns the question with the specified name."""
return self._questions[name]
def run(self):
"""Steps through the questions in this course."""
current = "START"
while current != "EXIT":
question = self.get_question(current)
for line in question.get_text():
print(line)
answer = input("> ").strip().upper()
next = question.lookup_answer(answer)
if next is None:
print("I don't understand that response.")
else:
current = next
def read_course(fh):
"""Reads the entire course from the data file handle fh."""
questions = { }
finished = False
while not finished:
question = read_question(fh)
if question is None:
finished = True
else:
name = question.get_name()
if len(questions) == 0:
questions["START"] = question
questions[name] = question
return TMCourse(questions)TMQuestion Class
MARKER = "-----"
class TMQuestion:
def __init__(self, name, text, answers):
"""Creates a new TMQuestion object with these attributes."""
self._name = name
self._text = text
self._answers = answers
def get_name(self):
"""Returns the name of this question."""
return self._name
def get_text(self):
"""Returns the list containing the text of this question."""
return self._text
def lookup_answer(self, response):
"""Looks up the response to find the next question."""
next_question = self._answers.get(response, None)
if next_question is None:
next_question = self._answers.get("*", None)
return next_question
def read_question(fh):
"""Reads one question from the data file handle fh."""
name = fh.readline().rstrip()
if name == "":
return None
text = [ ]
finished = False
while not finished:
line = fh.readline().rstrip()
if line == MARKER:
finished = True
else:
text.append(line)
answers = { }
finished = False
while not finished:
line = fh.readline().rstrip()
if line == "":
finished = True
else:
colon = line.find(":")
if colon == -1:
raise ValueError("Missing colon in " + line)
response = line[:colon].strip().upper()
next_question = line[colon + 1:].strip()
answers[response] = next_question
return TMQuestion(name, text, answers)