Preparing git repo for final project

problems/pset8/jar/jar.py

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+class Jar:
+    def __init__(self, capacity=12):
+        if not isinstance(capacity, int) or capacity < 0:
+            raise ValueError("Invalid capacity")
+        self._capacity = capacity
+        self._size = 0
+
+    def __str__(self):
+        return '🍪' * self.size
+
+    def deposit(self, n):
+        new_size = n + self.size
+        if new_size > self.capacity or new_size < 0:
+            raise ValueError("Exceeded capacity")
+        self._size += n
+
+    def withdraw(self, n):
+        return self.deposit(-n)
+
+    @property
+    def capacity(self):
+        return self._capacity
+
+    @property
+    def size(self):
+        return self._size

problems/pset8/jar/test_jar.py

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+from jar import Jar
+
+
+def main():
+    test_capacity()
+    test_size()
+    test_deposit()
+    test_withdraw()
+
+
+def test_capacity():
+    j = Jar(capacity=3)
+    assert j.capacity == 3
+
+
+def test_size():
+    j = Jar(capacity=5)
+    assert j.size == 0
+    j.deposit(3)
+    j.withdraw(1)
+    assert j.size == 2
+
+
+def test_deposit():
+    j = Jar(capacity=5)
+    j.deposit(3)
+    try:
+        j.deposit(3)
+        raise Exception("Deposit n > capacity did not raise ValueError")
+    except Exception as e:
+        assert isinstance(e, ValueError)
+
+
+def test_withdraw():
+    j = Jar(capacity=5)
+    j.deposit(3)
+    j.withdraw(2)
+    try:
+        j.withdraw(2)
+        raise Exception("Withdraw n > size did not raise ValueError")
+    except Exception as e:
+        assert isinstance(e, ValueError)
+
+
+if __name__ == '__main__':
+    main()

problems/pset8/seasons/seasons.py

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+import datetime
+import re
+import sys
+
+import inflect
+
+date_regex = re.compile(r"\d{4}-\d{2}-\d{2}")
+p = inflect.engine()
+
+
+def main():
+  today = datetime.date.today()
+  users_date = input("Date of Birth: ")
+  try:
+    users_date = parse_date(users_date)
+  except ValueError:
+    sys.exit(1)
+  minutes = get_minutes(users_date, today)
+  print(format_minutes(minutes))
+
+
+def get_minutes(start_date, end_date):
+  minutes = (end_date - start_date).total_seconds() / 60
+  return int(round(minutes, 0))
+
+
+def format_minutes(minutes: int) -> str:
+  stringed_number = p.number_to_words(minutes, andword="").capitalize()
+  return f"{stringed_number} minute{'s' if minutes > 1 else ''}"
+
+
+def parse_date(date_string):
+  if not date_regex.match(date_string):  # Acutally not necessary: strptime would raise ValueError anyway
+    raise ValueError
+  return datetime.datetime.strptime(date_string, '%Y-%m-%d').date()
+
+
+if __name__ == '__main__':
+  main()

problems/pset8/seasons/test_seasons.py

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+from seasons import format_minutes, parse_date
+
+
+def main():
+  test_format_minutes()
+  test_invalid_dates()
+  test_known_intervals()
+
+
+def test_format_minutes():
+  assert format_minutes(1) == 'One minute'
+  assert format_minutes(2) == 'Two minutes'
+
+
+def test_invalid_dates():
+  try:
+    parse_date('91-5-9')
+    raise Exception
+  except Exception as e:
+    assert isinstance(e, ValueError)
+  try:
+    parse_date('cacao')
+    raise Exception
+  except Exception as e:
+    assert isinstance(e, ValueError)
+  try:
+    parse_date('1991-13-09')
+    raise Exception
+  except Exception as e:
+    assert isinstance(e, ValueError)
+  try:
+    parse_date('1991-11-40')
+    raise Exception
+  except Exception as e:
+    assert isinstance(e, ValueError)
+
+
+def test_known_intervals():
+  assert format_minutes(525600) == "Five hundred twenty-five thousand, six hundred minutes"
+  assert format_minutes(1051200) == "One million, fifty-one thousand, two hundred minutes"
+
+
+if __name__ == '__main__':
+  main()

problems/pset8/shirtificate/shirtificate.py

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+from fpdf import FPDF
+
+
+def main():
+    username = input("What's your name?\t\t")
+    pdf = FPDF(orientation="P", unit="mm", format="A4")
+    pdf.set_auto_page_break(False)
+    pdf.add_page()
+    pdf.set_font("helvetica", "B", 45)
+    pdf.cell(0, 10, 'CS50 Shirtificate', new_x="LMARGIN", new_y="NEXT", align='C')
+    page_width = pdf.w
+    total_horizontal_margin = 0.2 * page_width
+    image_width = pdf.w-total_horizontal_margin
+    pdf.image("shirtificate.png", x=total_horizontal_margin/2, y=50, w=image_width)
+    pdf.set_font("helvetica", "B", 32)
+    pdf.set_text_color(255, 255, 255)
+    pdf.cell(0, 230, f'{username} took CS50', new_x="LMARGIN", new_y="NEXT", align='C')
+    pdf.output("shirtificate.pdf")
+
+
+if __name__ == '__main__':
+    main()