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Python

Unit Project 4: Wrong number of product Id's

I am reading the CSV file using dict reader, but I am getting the wrong number of product Id's, 83 instead of 26. I am assuming it's somewhere in my add_csv function, probably a loop, but I need help with it. Can anyone let me know where I am making the mistake.

Here is my app file:

from models import (Base, session, Product, engine)
import datetime
import csv
import time

def menu():
    choice =input(''' 
    \n***** Main Menu *****
    \rPlease make a selection
    \rPress 'v' View details
    \rPress 'a' to add item
    \rpress 'b' to make a back up of all contets
    \rPress 'e' to exit
    \r
    \rMake your selection: ''')

    if choice in ['v', 'a', 'b', 'e' ]:
        return choice

def clean_date(date_str):
    try:
        date_object = datetime.datetime.strptime(date_str, "%m/%d/%Y")
        format_date =date_object.strftime("%Y-%m-%d")
        return_date = datetime.datetime.strptime(format_date, '%Y-%m-%d').date()

    except ValueError:
        input( ''' 
            \n******** DATE ERROR *********
            \rThe Date format should inlcude a valid Month Day, Year from the past
            \rExample: January 13, 2003
            \rPress ENTER to try again
            \r********************************* 
            \r''')
        return

    else:
        return return_date



def clean_price(price_str):
    cleaned_price = float(price_str.strip("$"))
    cleaned_price = float(cleaned_price)
    cleaned_price = int(cleaned_price * 100)
    return cleaned_price



def clean_id(id_str, options):
    try:
        book_id = int(id_str)
    except:
        input( f''' 
            \n******** Id ERROR *********
            \rId must be a number.
            \rPress ENTER to try again
            \r***************************''')
        return
    else:
        if book_id in options:
            return book_id
        else:
            input( ''' 
            \n******** Id ERROR *********
            \r Options are: {my_options}.
            \rPress ENTER to try again
            \r***************************''')


def add_csv():
    with open('inventory.csv') as csvfile:
        data = csv.DictReader(csvfile)
        new_data =[]
        for row in data:
            clean_rows = {}
            clean_rows['product_name'] = row['product_name']
            prices = row.get('product_price', 'N/A')
            prices = clean_price(prices)
            clean_rows['product_price'] = prices
            quants = row['product_quantity']
            quants = int(quants)
            clean_rows['product_quantity'] = quants
            dates = row.get('date_updated', 'N/A')
            dates = clean_date(dates)
            clean_rows['date_updated'] = dates
        new_data.append(clean_rows)
    for item in new_data:
        product = Product(**item)
        session.add(product)
    session.commit



def app():
    add_csv()
    app_running = True
    while app_running:
         choice = menu()
         if choice == 'v':
            id_options = []
            for item in  session.query(Product):
                id_options.append(item.product_id)
            id_error = True
            while id_error:
                pick_id = input(f'''
                \nId options = {id_options}
                \rMake your selection: ''')
                pick_id = clean_id(pick_id, id_options)
                if type(pick_id) == int:
                    id_error = False
            the_product = session.query(Product).filter(Product.product_id == pick_id).first()
            print(f'''
                  \nProduct name: {the_product.product_name}
                  \rProduct Price: ${(the_product.product_price) / 100}
                  \rStock:  {the_product.product_quantity}
                  \rStock updated on: {(the_product.date_updated)}  
                  \r''')
            input('Press ENTER to continue')

         elif choice == 'a':
            pass

         elif choice ==  'b':
            pass

         else:
            print("Inventory Closing: Goodbye!")
            app_running = False



if __name__ == "__main__":
    Base.metadata.create_all(engine)
    add_csv()
    for item in  session.query(Product):
        print(item.product_id) 

Here is my model file:

from sqlalchemy import (create_engine, Column, 
                        String, Integer, Date)
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

engine = create_engine('sqlite:///inventory.db.', echo = False)
Session = sessionmaker(bind = engine)
session = Session()
Base = declarative_base()

class Product(Base):
    __tablename__ = 'Products'
    product_id = Column(Integer, primary_key= True)
    product_name = Column('Name',String )
    product_price = Column('Price', Integer)
    product_quantity = Column('Quantity', Integer)
    date_updated = Column('Date Updated', Date)

def __repr__(self):
        return (f'Name: {self.product_name} Quantity: {self.product_quantity} Price:{self.product_price} Date Updated: {self.date_updated}') 

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,715 Points

I don't know the exact nature of your program.

Perhaps you added your data multiple times (during multiple runs) rather than starting with a "clean" database?