Python brings up the help menu in PyCharm - python

In my class called Commands, I have a "carstuff" command (it's a very basic command system) which is supposed to bring up my help menu, but instead it just brings up the python help menu. Here's my commands.py file:
class Commands:
pass
def askCommand(self):
command = input("Enter command: ")
if command == "carstuff":
#the other part that's having problems
help()
elif command == "sell":
pass
elif command == "addcar":
pass
#part that's having problems
def help(self):
print(
"carstuff: Brings up the help menu\nsell: Sells the current car\naddcar: Adds another car"
)
And here's my main.py file (I'm making a mockup of craigslist)
from car import Car
from commands import Commands
print("Welcome to Craigslist on the command line! Start by entering your car info below.")
brand = input("Enter your car brand: ")
model = input("Enter your car model: ")
year = input("Enter your car's year: ")
condition = input("Enter your car's condition: ")
car = Car(brand, model, year, condition)
print("Your car's price is: " + str(car.price))
print("Now that you've listed your car, you can use commands now!\n")
command = Commands.askCommand(Commands)
And I have another car.py file (but I don't know if it will be of any use)
class Car:
def __init__(self, brand, model, year, condition):
self.brand = brand
self.model = model
self.year = year
self.condition = condition
self.price = len(model) * 0.75 * 3000
if self.condition == "Bad":
self.price - 100
elif self.condition == "Brand New":
self.price + 100
def Sell(self):
sure = input("Are you sure you want to sell? (Y/N): ")
if sure == "Y" or "y":
self.sellprice = self.price % 75
print("You got " + self.sellprice + " from this car.")
elif sure == "N" or "n":
print("Sell cancelled.\n")

Related

Trouble with saving and loading dictionary with class instances using pickle

New to programming and trying to learn how to store data using pickle. Essentially, what I'm trying to do is create an address book using classes stored in a dictionary. I define the class (Contact). It all worked, but when I tried to introduce pickling to store data from a previous session, I've created 2 errors that I've found so far.
1: If I select to load a previous address book, I cant update or view the class variables. It's almost like there are two different dictionaries.
2: I select not to load a previous address book and add a contact. When I add the contact and try to view the contacts, I'll get an "Unbound Error: local variable 'address book' referenced before assignment"
What am I doing wrong with pickling?
address_book= {}
class Contact:
def __init__(self,first_name,last_name, phone,company):
self.first_name = first_name
self.last_name = last_name
self.phone = phone
self.company = company
def __call__(self):
print("Contact: %s \nPhone #: %s \nCompany: %s" %(self.name,self.phone,self.company))
def erase(entry):
del address_book[entry] # delete address book entry
del entry #delete class instance
def save():
new_file = open("addressBook.pkl", "wb")
saved_address = pickle.dump(address_book, new_file)
new_file.close()
def load():
open_file = open("addressBook.pkl", "rb")
address_book = pickle.load(open_file)
open_file.close()
print(address_book)
return address_book
def add_contact():
first_name = input("Please type the first name of the contact. ")
last_name = input("Please type in the last name of the contact. ")
if " " in first_name or " " in last_name:
print("Please do not add spaces to your first or last name.")
else:
phone = input("Please type the user phone number without hyphens. ")
if not phone.isnumeric():
print("That isn't a valid phone number.")
else:
company = input("Please type the company they work for. ")
contact = Contact(first_name,last_name,phone,company)
address_book[first_name + " " +last_name] = contact #assign key[first and last name] to value[the class instance] in dictionary
def view_contact(entry):
if entry in address_book:
print("First Name: %s" %(address_book[entry].first_name)) #get class variables
print("Last Name: %s" %(address_book[entry].last_name))
print("Phone Number: %s" %(address_book[entry].phone))
print("Company: %s" %(address_book[entry].company))
else:
print("That person isn't in your address book")
def update(entry):
if entry in address_book:
update_choice = input("Would you like to update the first name (f), last name (l), phone (p), or company (c)? ").lower()
if update_choice == "f":
address_book[entry].first_name = input("Please type the updated first name of this contact. ")
updated_key = address_book[entry].first_name + " " + address_book[entry].last_name
address_book[updated_key] = address_book[entry]
del address_book[entry] #delete old key
elif update_choice == "l": #update last name
address_book[entry].last_name = input("Please type the updated last name of this contact. ")
updated_key = address_book[entry].first_name + " " + address_book[entry].last_name
address_book[updated_key] = address_book[entry]
del address_book[entry]
elif update_choice == "p":
address_book[entry].phone = input("Please type the updated phone number of this contact. ")
elif update_choice == "c":
address_book[entry].company = input("Please type the updated company of this contact. ")
else:
print("That was not valid. Please try again.")
def main():
print("Welcome to your address book!!")
returning_user = input("Would you like to load a previous address book? Y or N ").lower()
if returning_user == "y":
address_book = load()
while True:
choice = input("Please type A:Add, B:View All Contacts, V:View a Contact, D:Delete, U:Update, or X:Exit ").lower()
if choice == "x":
break
elif choice == "a":
add_contact()
elif choice == "b":
if len(address_book) == 0: #error check if no contacts
print("You don't have any friends. PLease go make some and try again later. :(")
else:
for i in address_book:
print(i)
elif choice == "v":
if len(address_book) == 0:
print("You don't have any friends. PLease go make some and try again later. :(")
else:
view = input("Who do you want to view? Please type in their first and last name. ")
view_contact(view)
elif choice == "d":
if len(address_book) == 0:
print("You don't have any friends. PLease go make some and try again later. :(")
else:
contact = input("Please type the first and last name of the person you want to delete ")
if contact in address_book:
erase(contact)
elif choice == "u":
if len(address_book) == 0:
print ("C'mon, you don't know anyone yet. How about you make some friends first?")
else:
choice = input("What is the first and last name of the person you'd like to update? ")
update(choice)
else:
print("That was not valid. Please try again.")
print()
save_book = input("Would you like to save your book? Y or N ").lower()
if save_book == "y":
save()
print("Thanks for using the address book!")
main()

pull class from dictionary and not working

im trynig to operate a class after it has being in a dictionary and its not working.
I'm trying to operate "balance_check_in_the_bank_account" metoud at the third "if()"
when the user ask for number "2" action.
all_bank_accounts = {}
class BankAccount():
def __init__(self, first_name, last_name, personal_number,currency, amount = 0):
self.first_name = first_name
self.last_name = last_name
self.personal_number = personal_number
self.currency = currency
self.amount = amount
def balance_check_in_the_bank_account(self):
print('The amount of money in the bank is:\n ', self.amount)
while True:
cmd = int(input(" Press 1 to create a bank account or Press 2 to other options:\n"))
if cmd == 1:
first_namee = input("What is your first name? ")
last_namee = input("What is your last name? ")
personal_numberr = input("What is your ID? ")
currencyy = input("What type of currncey would you like to use? ")
amountt = int(input("What is the amount of money would you like to deposit? "))
the_account = BankAccount(first_namee, last_namee, personal_numberr, currencyy, amountt)
dictank = {f"{personal_numberr}":the_account}
all_bank_accounts.update(dictank)
print(all_bank_accounts)
else:
personal_number = input("What is your ID? ")
if personal_number in all_bank_accounts.keys():
cmd = int(input(" Press 2 to check in the bank account.\n Press 3 to deposit cash.\n Press 4 to withrawal cash.\n Press 5 to check the average of deposits or withrawals.\n Press 6 to print an account details page ."))
if cmd == 2:
one_of_the_accounts = all_bank_accounts[f"{personal_numberr}"]
one_of_the_accounts.balance_check_in_the_bank_account
else:
print("The bank account not exist")

How to use if statements in classes

I'm trying to make a simple library where the user can add and remove books from his shopping cart, but I don't know how to use if statements with OOP and classes.
try:
class library:
def __init__(self, books, customer):
self.books = books
self.customer = customer
# sign:
check = input("manager account(1), customer account(2): ")
if check == "2":
#age >= 18
age = int(input("enter your age: "))
if age >= 18:
#name
name = input("enter your firstname: ")
# ID
import random
x = "ID"+str(random.randint(101,999))
print(f"your ID is: {x}")
print("you should memorize it")
y = input("enter password that has at list 8 caracterse: ")
# Password
while len(y) < 8:
y = input("enter password that has at list 8 caracterse: ")
print(f"your password is: {y}")
print("you should memorize it")
data = [x,y]
choice_1 = input("check your shopping cart(1): \nadd books to your shopping cart(2): \nremove books from your shopping cart(3): ")
if choice_1 == "1":
def __str__(self):
return f"customer {self.customer} bought those books{self.books}"
elif choice_1 == "2":
def __iadd__(self, other):
self.books.append(other)
return self
order = library(["the golsen company"],"Mr.asad")
print(order.books)
order += input("enter a book: ")
print(order.books)
except ValueError as ages:
print(ages)
I don't know if this is the right way to use the if statement with classes so if you can just give me an example to show how it's done correctly?
OK, I have rewritten your code to implement it in a more organized way. Your class "library" was not really a library at all; it is a class for "orders", and I have renamed it as such. I didn't know what you wanted for the manager account, so the manager account just assigns a fake user name without requiring a signup. I also fixed the spelling errors and the tabbing.
import random
import sys
class Order:
def __init__(self, books, customer):
self.books = books
self.customer = customer
def __iadd__(self, other):
self.books.append(other)
return self
def __isub__(self, other):
self.books.remove(other)
return self
def __str__(self):
return f"custumer {self.customer} bought those books {self.books}"
# sign in.
check = input("manager account(1),custumer account(2): ")
if check == '1':
x = 'manager'
if check == "2":
#age >= 18
age = int(input("enter your age: "))
if age < 18:
print("Sorry, you must be at least 18.")
sys.exit(0)
#name
name = input("enter your firstname: ")
# ID
x = "ID"+str(random.randint(101,999))
print(f"your ID is: {x}")
print("you should memorize it")
# Password
y = input("enter password that has at least 8 characters: ")
while len(y) < 8:
y = input("enter password that has at least 8 characters: ")
print(f"your password is: {y}")
print("you should memorize it")
# Main menu.
order = Order( [], x )
while True:
print('---')
choice_1 = input("1. check your shopping cart\n2. add books to your shopping cart\n3. remove books from your shopping cart\n4. quit: ")
if choice_1 == "1":
print( order )
elif choice_1 == "2":
order += input("enter a book: ")
elif choice_1 == "3":
book = input("enter a book: ")
if book in order.books:
order -= book
else:
print( f"{book} is not in your cart." )
elif choice_1 == "4":
break
when you said "fonction", I think you mean "function". When you make a try: block, you must also add an except: block. Also, don't put code directly in the class. Put it inside a function (a.k.a methods). I put the code starting from # sign in the __int__ method. We generally don't put methods (functions) inside other methods. So, put the __str__ and __iadd__ methods outside the __init__ method. To call it, use self.__str__() and self.__iadd__().
Here is the updated code:
try:
class library:
def __init__(self, books, customer):
self.books = books
self.customer = customer
# sign:
check = input("manager account(1), customer account(2): ")
if check == "2":
# age >= 18
age = int(input("enter your age: "))
if age >= 18:
# name
name = input("enter your firstname: ")
# ID
import random
x = "ID" + str(random.randint(101, 999))
print(f"your ID is: {x}")
print("you should memorize it")
y = input("enter password that has at list 8 caracterse: ")
# Password
while len(y) < 8:
y = input("enter password that has at list 8 caracterse: ")
print(f"your password is: {y}")
print("you should memorize it")
data = [x, y]
choice_1 = input("check your shopping cart(1): \nadd books to your shopping cart(2): ")
if choice_1 == "1":
self.__str__()
elif choice_1 == "2":
self.__iadd__()
# age < 18
elif age < 18:
print("this library is not for your age")
def __iadd__(self, other):
self.books.append(other)
return self
def __str__(self):
return f"customer {self.customer} bought those books{self.books}"
except:
pass
order = library(["the golsen company"], "Mr.asad")
print(order.books)
order += input("enter a book: ")
print(order.books)

Allowing users to create multiple list in Python

I want to user to input information and print out the total list. However, when the user input another list it only prints out the first list. How can I make the program print the users total input. Here's my code.
listing = []
class Car:
def __init__(self, ownerName=None, model=None, make=None, price=None):
self.ownerName = ownerName
self.model = model
self.make = make
self.price = price
def input(self):
print "Please update car info \n"
while True:
i = 0
listing.append(Car(raw_input("Owner Name"), raw_input("Model?"), raw_input("Make?"), raw_input("Price?")))
print "Updated"
print listing[i].ownerName, listing[i].model, listing[i].make, listing[i].price
addOn = raw_input("Continue? (Y/N)")
if addOn.lower() == "y":
i += 1
continue
else:
break
# search a car and print its information. Exit when user input is 'exit'
def menu():
x = Car()
print "PLease choose an option (1-4):\n"
choice = raw_input("1) input\n" \
"2) change price and owner\n" \
"3) search a car and print info\n" \
"\"exit\" Exit")
if choice == "1":
x.input()
elif choice == "2":
print "Price"
elif choice == "3":
print "Search and Print info"
menu()
#mhawke's answer should fix your problem. However, I do not like the idea of creating objects of a class from one of its functions. Check the edited code below.
listing = []
class Car:
def __init__(self, ownerName=None, model=None, make=None, price=None):
self.ownerName = ownerName
self.model = model
self.make = make
self.price = price
def input_car():
print "Please update car info \n"
i = 0
while True:
listing.append(Car(raw_input("Owner Name"), raw_input("Model?"), raw_input("Make?"), raw_input("Price?")))
print "Updated"
print listing[i].ownerName, listing[i].model, listing[i].make, listing[i].price
addOn = raw_input("Continue? (Y/N)")
if addOn.lower() == "y":
i += 1
continue
else:
break
# search a car and print its information. Exit when user input is 'exit'
def menu():
#x = Car()
print "PLease choose an option (1-4):\n"
choice = raw_input("1) input\n" \
"2) change price and owner\n" \
"3) search a car and print info\n" \
"\"exit\" Exit")
if choice == "1":
input_car()
elif choice == "2":
print "Price"
elif choice == "3":
print "Search and Print info"
menu()
I cleaned up the code a little bit. I should work now. Option 3 gives you a complete listing of all cars so far, so youhave an example to build on.
listing = []
class Car:
def __init__(self, ownerName=None, model=None, make=None, price=None):
self.ownerName = ownerName
self.model = model
self.make = make
self.price = price
#to have a useful method for our example I overwrite the __str__ method from object
def __str__(self):
return ",".join([self.ownerName, self.model, self.make, self.price])
#input does not handle aspects of car, therefore it should be not a method of car
def input():
print "Please update car info \n"
while True:
# there is no need for 'i' so I removed it
car = Car(raw_input("Owner Name"),
raw_input("Model?"),
raw_input("Make?"),
raw_input("Price?"))
listing.append(car)
print "Updated"
print car #possible since __str__ is overwritten
addOn = raw_input("Continue? (Y/N)")
if addOn.lower() == "n":
break
def menu():
keep_running = True
#added a while loop so the user stays in the program until he types 'exit'
#changed option '3' to have a working example to build on
while keep_running:
print "PLease choose an option (1-4):\n"
choice = raw_input("1) input\n" \
"2) change price and owner\n" \
"3) list all cars\n" \
"\"exit\" Exit")
if choice == "1":
input()
elif choice == "2":
print "Price"
elif choice == "3":
print "\n".join(map(str, listing))
elif choice == "exit":
keep_running = False
menu()
That's because you reset i on each iteration of your while loop.
Move the line:
i = 0
to the line before the while True:
That should fix the immediate problem, however, your code uses an unusual design. You should not create a Car object in order to create further instances of Cars which are then inserted into a global list.
At a minimum you could make input() a static method and have it return a list of Car instances to the caller. Then you can do away with the global listing variable. Also, you don't actually need to keep a counter in i you can just use -1 as the subscript to access the last item in the list:
#staticmethod
def input(listing=None):
if listing is None:
listing = []
print "Please update car info \n"
while True:
listing.append(Car(raw_input("Owner Name"), raw_input("Model?"), raw_input("Make?"), raw_input("Price?")))
print "Updated"
print('{0.ownerName} {0.model} {0.make} {0.price}'.format(listing[-1]))
addOn = raw_input("Continue? (Y/N)")
if addOn.lower() != "y":
break
return listing
Using a static method is good here because input() is related to Car objects so it makes sense to package that function with the class.
Now you can call input() without creating an instance of a Car. In your menu() function remove the x = Car() and change x.input() to listing = Car.input(). Or, if you want to append to an existing "listing" list, call Car.input(listing) which will append new input to listing. You can then print the returned list to see all user input:
def menu():
print "PLease choose an option (1-4):\n"
choice = raw_input("1) input\n" \
"2) change price and owner\n" \
"3) search a car and print info\n" \
"\"exit\" Exit")
if choice == "1":
listing = Car.input()
# print out all user entered cars
for car in listing:
print('{0.ownerName} {0.model} {0.make} {0.price}'.format(car))
elif choice == "2":
print "Price"
elif choice == "3":
print "Search and Print info"

Inputs are not working as planned, cannot fix (python) [duplicate]

This question already has answers here:
Asking the user for input until they give a valid response
(22 answers)
Closed 8 years ago.
I'm making a pizza operator program for school. what is basically does is it asks for the customers name, asks if you want pickup or delivery etc. The problems I have encountered is that when I don't type anything into the input it will give the error to make you input it but then will automatically stop the program. I would like it to repeat itself. and also I have a bug in get_user_info when I click 1, 2 or 3 it does nothing but go in a infinite loop which I cannot seem to solve. I hope you guys could help me thank you very much in advance.
Regards,
Johnathon
My code
premium_pizzas = ["Supreme Cheese", "The Legendary pizza", "Pentakill supreme", "Teeto shroomo supreme", "The volcanic rengar", "Cheese and Ham" , "Vegetriano" ]
gourmet_pizzas = ["Flame Gorrila", "Snazzy chicken", "Intergalactic BBQ", "BBQ Chicken"]
#premium_pizzas = 8.50
#gourmet_pizzas = 5.00
customer_name = ""
def get_customer_name():
customer_name =input("what is your name?\n\t")
if customer_name is "":
print("Error please enter a name!\n\t")
#else: get_user_info()
def get_delivery_details():
get_address = input("Please enter a delivery address\n\t:")
if get_address == "":
print("error you must enter a address")
get_phone_number = str(input("please enter your phone number"))
if get_phone_number is "":
print("Input must be an integer(numbers only)")
if get_phone_number is "abcdefghijklmnopqrstuvwxyz":
print("Input must be an integer(numbers only)")
else:
get_pizza_list()
def get_pizza_list():
for i in range (0,6):
None
def get_user_info():
while not get_user_info == "0":
user_input=str(input("Press 1 for delivery press\nPress 2 for pickup\nPress 3 to exit\n\t:"))
if get_user_info == "1":
get_delivery_details()
elif get_user_info == "2":
get_pizza_list()
elif get_user_info == "3":
exit
#get_user_info()
get_customer_name
#get_delivery_details()
#get_pizza_list()
You want to loop as long as the customer name is empty:
customer_name = ""
def get_customer_name():
while (customer_name == ''):
customer_name = raw_input("what is your name?\n\t")
if customer_name is "":
print("Error please enter a name!\n\t")
In addition, I would re-think the use of global variables. Programs using globals do not scale well.
def get_customer_name():
result = ''
while (result is ''):
result = raw_input("what is your name?\n\t")
if (result is ''):
print("Error please enter a name!\n\t")
return(result)
and later in the program:
customer_name = get_customer_name()
The first problem:
I would change
customer_name =input("what is your name?\n\t")
if customer_name is "":
print("Error please enter a name!\n\t")
with
customer_name=""
while customer_name == "":
customer_name =input("what is your name?\n\t")
print("Error please enter a name!\n\t")
And the other problem... quick suggestion: are you sure you wanna read user_input and use get_user_info as a variable? Just use user_input, not the name of the function :) ^^
Editing so not to pollute the edit place:
while not user_input == "3":
user_input=str(input("Press 1 for delivery press\nPress 2 for pickup\nPress 3 to exit\n\t:"))
if user_input == "1":
get_delivery_details()
else user_input == "2":
get_pizza_list()
Basically you cycle until user_input is different from 3, the (main) problem with your solution was that you were using a bogus variable (get_user_info) to perform the check to let the cycle end, BUT you were setting a different one (user_input) ;)
1. Use raw_input()
2. Work with objects/classes. It'll make your program more readable/debugable/organized.
3. Some of your if statements could be rewritten.
4. Make global variables uppercase for readability. (actually not sure if this in PEP-8 but I always do it)
Example
Here is something I made. It is dirty but it works.
PREMIUM_PIZZAS = ["Supreme Cheese", "The Legendary pizza", "Pentakill supreme", "Teeto shroomo supreme", "The volcanic rengar", "Cheese and Ham" , "Vegetriano" ]
GOURMET_PIZZAS = ["Flame Gorrila", "Snazzy chicken", "Intergalactic BBQ", "BBQ Chicken"]
class Customer():
def __init__(self):
self.name = ''
self.address = ''
self.phone = ''
self.pickup = False
self.pizza = ''
class Order():
def __init__(self):
self._customer = Customer()
def get_order(self):
if not self.get_customer_name():
return None
if not self.get_user_info():
return None
return self._customer
def get_customer_name(self):
name = raw_input("what is your name?\n\t")
if not name:
print("Please enter a name!\n\t")
else:
self._customer.name = name
return True
def get_delivery_details(self):
address = raw_input("Please enter a delivery address\n\t:")
if not address:
print("You must enter a address")
return None
self._customer.address = address
phone_number = raw_input("Please enter your phone number\n\t")
try:
self._customer.phone = int(phone_number)
except:
print("Input must be an integer(numbers only)")
return None
pizza_choice = self.get_pizza_list()
if not pizza_choice:
return None
return True
def get_pizza_list(self):
# if anything went wrong, return None
# get a listing of the pizzas here, etc
choice = PREMIUM_PIZZAS[1]
if choice:
self._customer.pizza = choice
return True
def get_user_info(self):
user_choice = raw_input("Press 1 for delivery press\nPress 2 for pickup\nPress 3 to exit\n\t:")
if user_choice == "1":
if self.get_delivery_details():
return True
elif user_choice == "2":
self._customer.pickup = True
if self.get_pizza_list():
return True
while True:
print '--\nWelcome, please order a pizza!'
order = Order()
info = order.get_order()
print '--'
if info:
for attr in [a for a in dir(info) if not a.startswith('__')]:
print '%s: %s' % (attr ,getattr(info, attr))
Output
dsc:~/bla$ python test.py
--
Welcome, please order a pizza!
what is your name?
Sander Ferdinand
Press 1 for delivery press
Press 2 for pickup
Press 3 to exit
:1
Please enter a delivery address
:The Netherlands
Please enter your phone number
8349644343
--
address: The Netherlands
name: Sander Ferdinand
phone: 8349644343
pickup: False
pizza: The Legendary pizza
--
Welcome, please order a pizza!
what is your name?
You might want to use my snippet as an example for making a class that contains all the pizzas and their individual prizes and implement that in!

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