def optimal_order_quantity(raw_costs, demand):
"""
Calculate economic order quantity (optimal Q*) given raw costs and demand.
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand quantity and time frame
Returns
-------
optimal_order_quantity: float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
# if holding cost is 0, optimal Q would be D (i.e.
# minimize ordering cost with one order across all demand)
if raw_costs.holding_cost == 0.0:
return demand.quantity
else:
numerator = 2 * raw_costs.ordering_cost * demand.quantity
denominator = raw_costs.holding_cost
return math.sqrt(numerator / denominator)
def program():
print(
"Логин должен начинаться с буквы и состоять не менее чем из 4 символов и не более чем из 20 символов;\n"
"при создании логина можно использовать латинские буквы, цифры, символы тире (-), подчеркивания (_) и точки (.)\n")
user_login = input("Введите логин: " '\n')
while Validate.validate_login(user_login) is None:
print("Ошибка! Попробуйте еще раз")
user_login = input("Введите логин: ")
print("Пароль должен содержать не менее 8 символов\n")
user_password = input("Введите пароль: ")
while Validate.validate_password(user_password) is None:
print("Ошибка! Попробуйте еще раз")
user_password = input("Введите пароль: ")
user = User(user_login, user_password, randint(1, 999999))
print("login: "******"password: "******"id: " + str(user.uniq_id))
user_data = ("login: "******"\npassword: "******"\nuniq_id: " + str(user.uniq_id))
user_file = str(user.login) + "_" + str(randint(1, 999999)) + ".txt"
s = open(user_file, 'w')
s.write(str(user_data) + '\n')
s.close()
print("Файл '" + user_file + "' успешно сохранен")
def shortage_cost(shortage_cost, shortage_quantity):
"""
Calculate the shortage cost - the total cost of not having units in stock,
including costs due to backorder, lost sales, lost customers, and operational
disruptions.
Parameters
----------
shortage_cost : int or float
Cost per unit of shortage, in dollars
shortage_quantity : int
The number of units of shortage, in units
Returns
-------
shortage_cost : float
"""
Validate.required(shortage_cost, "shortage_cost")
Validate.non_negative(shortage_cost, "shortage_cost")
Validate.required(shortage_quantity, "shortage_quantity")
Validate.non_negative(shortage_quantity, "shortage_quantity")
return shortage_cost * shortage_quantity
def __validate__(x, a, b, c):
# todo: revisit these: not always necessary
# e.g. if x < a or > b, then pdf/cdf evaluate to 0 or 1
for (var, name) in [(x, "x"), (a, "a"), (b, "b"), (c, "c")]:
v.required(var, name)
if a >= b:
raise ValueError("a must be less than b")
if c < a or c > b:
raise ValueError("c must be between a and b")
if x < a or x > b:
raise ValueError("x must be between a and b")
def total_cost(raw_costs, demand, order_quantity, expected_shortage=0):
"""
Calculate total inventory cost - the combination of purchase,
ordering, holding, and shortage cost components.
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand quantity and time frame
order_quantity : int
The number of units purchased with each order
expected_shortage : int, default 0
The expected value of the number of units short
Returns
-------
total_cost : float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
Validate.required(order_quantity, "order_quantity")
Validate.required(expected_shortage, "expected_shortage")
return (
Costs.purchase_cost(raw_costs.unit_cost, demand.quantity) +
Costs.total_relevant_cost(raw_costs, demand, order_quantity) +
Costs.shortage_cost(raw_costs.shortage_cost, expected_shortage))
def optimal_cycle_time(raw_costs, demand):
"""
Calculate optimal cycle time (T*) given raw costs and demand.
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand quantity and time frame
Returns
-------
optimal_cycle_time: float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
Validate.positive(demand.quantity, "demand.quantity")
Validate.positive(raw_costs.holding_cost, "raw_costs.holding_cost")
numerator = 2 * raw_costs.ordering_cost
denominator = demand.quantity * raw_costs.holding_cost
return math.sqrt(numerator / denominator)
def delete_donor(cursor):
while True:
try:
cursor.execute("SELECT UniqueId FROM Donor;")
data = cursor.fetchall()
ids = [i[0] for i in data]
print(ids, "(0) Cancel")
user_input = input("Enter donor's ID or passport number: ").upper()
if user_input == '0':
clear()
break
elif not Validate.validate_id(user_input):
print("\n\tWrong ID or Passport number, enter a real value")
time.sleep(2)
clear()
continue
elif user_input not in ids:
print("\n\tID is valid, but there is no entry with this ID yet.")
time.sleep(2)
clear()
continue
else:
print("Deleting entry...")
cursor.execute("DELETE FROM Donor WHERE UniqueId = '{}';".format(user_input))
time.sleep(1)
print("Done!")
input()
clear()
break
except Exception as e:
print(e)
print("\n\t! ! ! Belso Error ! ! ! ")
input()
clear()
def update_progressbar(self, dt):
"""Updating progress bar and activating validation."""
if self.progress != 100 and self.progress != -1:
self.progress += 1
self.status = 'Validating: {}%'.format(int(self.progress))
elif self.progress == 100:
check = Validate.ksvalidate(self.kstext)
self.progress = -1
self.status = check
def optimal_relevant_cost(raw_costs, demand):
"""
Calculate optimal relevant cost. (TRC(Q*))
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand quantity and time frame
Returns
-------
optimal_relevant_cost: float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
return math.sqrt(2 * raw_costs.ordering_cost * raw_costs.holding_cost *
demand.quantity)
def optimal_total_cost(raw_costs, demand):
"""
Calculate optimal total cost. (TC(Q*))
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand quantity and time frame
Returns
-------
optimal_total_cost: float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
return (raw_costs.unit_cost * demand.quantity +
EOQ.optimal_relevant_cost(raw_costs=raw_costs, demand=demand))
def total_relevant_cost(raw_costs, demand, order_quantity):
"""
Calculate total inventory cost relevant to the calculation of economic order
quantity.
Note: The relevant cost components are those that change as a function of
order quantity: ordering cost and holding cost.
Parameters
----------
raw_costs : RawCosts
A `RawCosts` object, containing a set of raw cost values
demand : Demand
A `Demand` object, containing demand order_quantity and time frame
order_quantity : int
The number of units purchased with each order
Returns
-------
total_relevant_cost : float
"""
Validate.required(raw_costs, "raw_costs")
Validate.required(demand, "demand")
Validate.required(order_quantity, "order_quantity")
return (Costs.ordering_cost(raw_costs.ordering_cost, demand.quantity,
order_quantity) +
Costs.holding_cost(raw_costs.holding_cost, order_quantity))
def __init__(self, quantity, time_unit='Y'):
Validate.required(quantity, "quantity")
Validate.non_negative(quantity, "quantity")
self.quantity = quantity
Validate.one_of_allowable(time_unit, ['Y', 'M', 'W', 'D'], "time_unit")
self.time_unit = time_unit
def post(self):
username = self.request.get("username")
password = self.request.get("password")
verify = self.request.get("verify")
email = self.request.get("email")
user = Validate(username, password, verify, email)
username_error = ""
password_error = ""
verify_error = ""
if user.validate():
self.redirect("/welcome?username={0}".format(username))
else:
if not user.username_val():
username_error = "That isn't a valid username."
if not verify:
verify_error = "Please verify your password."
if password and verify:
if not user.equal():
verify_error = "Passwords do not match."
if not user.password_val():
password_error = "That isn't a valid password."
self.write_form(username, username_error, password_error, verify_error,
email)
def delete_donor():
while True:
try:
with open("Data/donors.csv", "r") as f:
content = []
for line in f:
content.append(line.strip())
ids = [
content[i].split(',')[6] for i in range(len(content))
if i != 0
]
print(ids, "(0) Cancel")
user_input = input(
"Enter donor's ID or passport number: ").upper()
if user_input == '0':
clear()
break
elif not Validate.validate_id(user_input):
print(
"\n\tWrong ID or Passport number, enter a real value")
time.sleep(2)
clear()
continue
elif user_input not in ids:
print(
"\n\tID is valid, but there is no entry with this ID yet."
)
time.sleep(2)
clear()
continue
else:
print("Deleting entry...")
with open("Data/donors.csv", "w") as f:
for line in content:
if user_input != line.split(",")[6]:
f.write(line + "\n")
time.sleep(1)
print("Done!")
input()
clear()
break
except Exception as e:
print(e)
print("\n\t! ! ! Belso Error ! ! ! ")
input()
clear()
def add_new_donation_event(cursor_object):
print("Adding new event...\n")
time.sleep(1)
clear()
e1 = Event()
while True:
e1.date_of_event = input("Date of Event: ")
if Validate.validate_date(e1.date_of_event) and e1.registration_in_tendays():
pass
else:
print("\n\t ! The registration should be at least 10 days from now. ! ")
print("\t ! Use this format to enter date: 'YYYY.MM.DD' ! \n")
time.sleep(2)
clear()
continue
e1.start_time = EventManagerDB.data_into_event_object(e1, Validate.validate_time, "Start Time: ", TIME_ERR)
e1.end_time = EventManagerDB.data_into_event_object(e1, Validate.validate_time, "End Time: ", TIME_ERR)
while not e1.is_starttime_before_endtime():
print("\n\t ! The starting time should be before the ending time. ! ")
time.sleep(2)
clear()
e1.end_time = ""
e1.end_time = EventManagerDB.data_into_event_object(e1, Validate.validate_time, "End Time: ", TIME_ERR)
e1.zip_code = EventManagerDB.data_into_event_object(e1, Validate.validate_zipcode, "ZIP code: ", ZIP_ERR)
e1.city = EventManagerDB.data_into_event_object(e1, Validate.validate_city_name, "City: ", CITY_ERR)
e1.address = EventManagerDB.data_into_event_object(e1, Validate.validate_address, "Address of event: ", ADDRESS_ERR)
e1.available_beds = EventManagerDB.data_into_event_object(e1, Validate.validate_positive_int, "Available beds: ", POSINT_ERR)
e1.planned_donor_number = EventManagerDB.data_into_event_object(e1, Validate.validate_positive_int, "Planned donor number: ", POSINT_ERR)
e1.successfull = EventManagerDB.data_into_event_object(e1, Validate.validate_positive_int, "\n How many successfull donation was on the event?\n > ", POSINT_ERR)
print("\nThe required functions: \n")
print("Weekday :", e1.is_weekday())
e1.duration = e1.calculate_duration()
print("Duration: {} min -- {} hours ".format(e1.duration, round(e1.duration/60, 1)))
print("Maximum donor number:", e1.max_donor_number())
print("Success rate: {}".format(e1.success_rate()))
input("\n\n (Press ENTER to go BACK)")
EventManagerDB.store_donation_data(e1, cursor_object)
clear()
break
def delete_donor(cursor):
while True:
try:
cursor.execute("SELECT UniqueId FROM Donor;")
data = cursor.fetchall()
ids = [i[0] for i in data]
print(ids, "(0) Cancel")
user_input = input(
"Enter donor's ID or passport number: ").upper()
if user_input == '0':
clear()
break
elif not Validate.validate_id(user_input):
print(
"\n\tWrong ID or Passport number, enter a real value")
time.sleep(2)
clear()
continue
elif user_input not in ids:
print(
"\n\tID is valid, but there is no entry with this ID yet."
)
time.sleep(2)
clear()
continue
else:
print("Deleting entry...")
cursor.execute(
"DELETE FROM Donor WHERE UniqueId = '{}';".format(
user_input))
time.sleep(1)
print("Done!")
input()
clear()
break
except Exception as e:
print(e)
print("\n\t! ! ! Belso Error ! ! ! ")
input()
clear()
def delete_donor():
while True:
try:
with open("Data/donors.csv", "r") as f:
content = []
for line in f:
content.append(line.strip())
ids = [content[i].split(",")[6] for i in range(len(content)) if i != 0]
print(ids, "(0) Cancel")
user_input = input("Enter donor's ID or passport number: ").upper()
if user_input == "0":
clear()
break
elif not Validate.validate_id(user_input):
print("\n\tWrong ID or Passport number, enter a real value")
time.sleep(2)
clear()
continue
elif user_input not in ids:
print("\n\tID is valid, but there is no entry with this ID yet.")
time.sleep(2)
clear()
continue
else:
print("Deleting entry...")
with open("Data/donors.csv", "w") as f:
for line in content:
if user_input != line.split(",")[6]:
f.write(line + "\n")
time.sleep(1)
print("Done!")
input()
clear()
break
except Exception as e:
print(e)
print("\n\t! ! ! Belso Error ! ! ! ")
input()
clear()
def purchase_cost(unit_cost, demand_quantity):
"""
Calculate the purchase cost - the total landed cost for acquiring
product needed to satisfy a given amount of demand.
Parameters
----------
unit_cost : int or float
Cost per unit, in dollars
demand_quantity : int
The amount of demand, in units
Returns
-------
purchase_cost: float
"""
Validate.required(unit_cost, "unit_cost")
Validate.non_negative(unit_cost, "unit_cost")
Validate.required(demand_quantity, "demand_quantity")
Validate.non_negative(demand_quantity, "demand_quantity")
return unit_cost * demand_quantity
def holding_cost(holding_cost, order_quantity):
"""
Calculate the holding cost - the total cost of holding excess inventory,
including storage, service costs, risk costs, and capital costs.
Parameters
----------
holding_cost : int or float
Cost per unit of inventory per time period, in dollars
order_quantity : int
The number of units purchased per order, in units
Returns
-------
holding_cost: float
"""
Validate.required(holding_cost, "holding_cost")
Validate.non_negative(holding_cost, "holding_cost")
Validate.required(order_quantity, "order_quantity")
Validate.non_negative(order_quantity, "order_quantity")
return holding_cost * (order_quantity / 2)
def insertData(self):
username = self.name_lineEdit.text()
password = self.password_lineEdit.text()
if (not username) or (not password):
msg = QMessageBox.information(self, 'Внимание!',
'Вы не заполнили все поля.')
return
if Validate.validate_login(
username) is None and Validate.validate_password(
password) is None:
msg = QMessageBox.information(
self, 'Внимание!', 'И логин и пароль введены неправильно')
return
if Validate.validate_login(username) is None:
msg = QMessageBox.information(self, 'Внимание!',
'Такой логин задать нельзя')
return
if Validate.validate_password(password) is None:
msg = QMessageBox.information(self, 'Внимание!',
'Такой пароль задать нельзя')
return
if Validate.validate_login(username) and Validate.validate_password(
password):
user = User(username, password, randint(1, 999999))
spi = {
'username': user.login,
'password': user.password,
'id': user.uniq_id
}
with open("all_users.json", 'a+') as file:
json.dump(spi, file)
msg = QMessageBox.information(self, 'Успех', str(spi))
return
def test_nothing(self):
self.assertFalse(Validate.validate_email(""))
def test_null(self):
self.assertFalse(Validate.validate_blood_type("0"))
def test_time_too_much_min(self):
self.assertFalse(Validate.validate_time('15:60'))
def test_time_too_much_hour(self):
self.assertFalse(Validate.validate_time('25:30'))
def test_time_valid(self):
self.assertTrue(Validate.validate_time('12:35'))
def test_time_nothing(self):
self.assertFalse(Validate.validate_time(''))
def test_azavarosupper(self):
self.assertTrue(Validate.validate_city_name("SZERENCS"))
def test_string(self):
self.assertFalse(Validate.validate_positive_int("hsvee"))
def test_nothing(self):
self.assertFalse(Validate.validate_blood_type(""))
def test_azavaroslower(self):
self.assertTrue(Validate.validate_city_name("miskolc"))
def test_mukodo(self):
self.assertTrue(Validate.validate_date("1991.02.10"))
def test_a(self):
self.assertFalse(Validate.validate_blood_type("A"))
def test_ofalse(self):
self.assertFalse(Validate.validate_blood_type("O+"))
def test_nuber(self):
self.assertFalse(Validate.validate_positive_int("-15"))
def test_longstring(self):
self.assertFalse(Validate.validate_city_name("gegwv_svsv"))
def init_class(self):
""" This function receives the input data from users. """
while len(self.input) < 5:
self.input.append(Validate().validate_values(' Digite um número: ',
zero=True))
def test_number(self):
self.assertFalse(Validate.validate_city_name("29"))
def test_positive(self):
self.assertTrue(Validate.validate_positive_int("42"))
def init_class(self):
""" This function receives the input data from users. """
while len(self.list) < 2:
self.list.append(Validate().validate_strings(self.title, 2))
def ordering_cost(ordering_cost, demand_quantity, order_quantity):
"""
Calculate the ordering cost - the total cost of placing, receiving,
and processing orders needed to fulfill a given amount of demand.
Parameters
----------
ordering_cost : int or float
Cost per order, in dollars
demand_quantity : int
The amount of demand, in units
order_quantity : int
The number of units purchased per order, in units
Returns
-------
ordering_cost: float
"""
Validate.required(ordering_cost, "ordering_cost")
Validate.non_negative(ordering_cost, "ordering_cost")
Validate.required(demand_quantity, "demand_quantity")
Validate.non_negative(demand_quantity, "demand_quantity")
Validate.required(order_quantity, "order_quantity")
Validate.positive(order_quantity, "order_quantity")
return ordering_cost * (demand_quantity / order_quantity)
def test_abminusupper(self):
self.assertTrue(Validate.validate_blood_type("AB-"))
def test_time_wrong_divider(self):
self.assertFalse(Validate.validate_time('15.40'))
def test_bpluslower(self):
self.assertTrue(Validate.validate_blood_type("b+"))
elif user_input == MENU_ITEM_7:
user_input = ""
while user_input == "":
user_input = input("(0) Cancel\nType ID number: ")
user_input = user_input.upper()
clear()
if user_input == '0':
break
elif user_input.isdigit():
if connect_decider:
EventManagerDB.change_event(user_input, cursor)
connection.commit()
else:
EventManagerCSV.change_event(user_input)
actv_selection = 0
elif Validate.validate_id(user_input):
if connect_decider:
DonorManagerDB.change_donor_data(user_input,cursor)
connection.commit()
else:
DonorManager.change_donor_data(user_input)
actv_selection = 0
else:
print(ID_ERR + "\n\t\t\t\tor\n" + POSINT_ERR)
time.sleep(3)
clear()
user_input = ""
#
# EXIT
#
elif user_input == MENU_ITEM_8:
def test_nothing(self):
self.assertFalse(Validate.validate_positive_int(""))
def test_time_too_many_char(self):
self.assertFalse(Validate.validate_time('005:30'))
def test_null(self):
self.assertFalse(Validate.validate_positive_int("0"))
def test_long(self):
self.assertFalse(Validate.validate_blood_type("ggsiiuh sv448hg hsuh94"))
def test_oplus(self):
self.assertTrue(Validate.validate_blood_type("0+"))