Creating a Basic E-commerce Simulator in Python
- Building a Python E-commerce Simulator
- Imports
- Initialization
- `login()`
- `register()`
- `show_products()`
- `add_customer()`
- `show_customers()`
- `show_orders()`
- `generate_test_data()`
- `generate_all_statistical_figures()`
- `delete_all_data()`
- `show_profile()`
- `update_profile()`
- `main()`
- Conclusion
In this guide, we will take you through the process of building a basic e-commerce simulator in Python. This comprehensive guide is your gateway to understanding and creating a user-friendly e-commerce system. It empowers customers to log in, explore products, place orders, and personalize their profiles. Additionally, administrators will find essential tools for effective product management, customer administration, and data-driven decision-making through the generation of statistical figures. Whether you're a novice developer or an entrepreneur looking to embark on the e-commerce journey, this guide will serve as your fundamental resource to construct a fully operational online shopping experience.
Building a Python E-commerce Simulator
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Imports
```python
from user_operation import UserOperation
from product_operation import ProductOperation
from order_operation import OrderOperation
from customer_operation import CustomerOperation
from admin_operation import AdminOperation
from interface import Interface
import os
```
These import statements bring in various custom modules and libraries necessary for the e-commerce simulator. The modules include operations related to users, products, orders, customers, admin, and an interface for user interactions.
Initialization
Here, global variables are defined:
- `current_logged_in_customer` stores the currently logged-in customer or admin (initialized as `None`).
- Instances of different operation classes are created (e.g., `ProductOperation`, `UserOperation`) to perform various tasks.
`login()`
```python
current_logged_in_customer = None
product_op = ProductOperation()
user_op = UserOperation()
order_op = OrderOperation()
customer_op = CustomerOperation()
```
This function allows a user to log in. It prompts the user for a username and password, validates the credentials, and sets the `current_logged_in_customer` variable if the login is successful. Error messages are displayed when login fails.
`register()`
```python
def login():
global current_logged_in_customer
while True:
username, password = Interface.get_user_input("Enter your username and password separated by a space: ", 2)
current_logged_in_customer = user_op.login(username, password)
if not current_logged_in_customer:
Interface.print_error_message("UserOperation.login", "Cannot log in the user.")
else:
return
```
This function allows a customer to register by providing a username, password, email, and mobile. It calls the `register_customer` method and displays error messages if registration fails.
`show_products()`
```python
def register():
while True:
username, password, user_email, user_mobile = Interface.get_user_input("Enter your username, password, email and mobile separated by a space: ", 4)
result = customer_op.register_customer(username, password, user_email, user_mobile)
if result == True:
return
else:
Interface.print_error_message("CustomerOperation.register", result)
```
This function displays a list of products to the user. It retrieves product data, shows a page of products, and allows the user to navigate through the list (next page, previous page, or quit).
`add_customer()`
```python
def show_products():
page_number = 1
while True:
product_list = product_op.get_product_list(page_number)
if product_list:
Interface.show_list(current_logged_in_customer.user_role, "Product", product_list)
action, = Interface.get_user_input("Enter 'n' for next page, 'p' for previous page, or 'q' to quit: ", 1)
if action == "n":
page_number += 1
elif action == "p":
page_number -= 1
if page_number < 1:
page_number = 1
elif action == "q":
break
else:
Interface.print_error_message("ProductOperation.get_product_list", "No products to show.")
break
```
This function allows the admin to add a new customer. It prompts for username, password, email, and mobile, and calls the `register_customer` method to add the customer. Error messages are displayed if the operation fails.
`show_customers()`
```python
def add_customer():
while True:
username, password, user_email, user_mobile = Interface.get_user_input("Enter the customer's username, password, email, and mobile separated by a space: ", 4)
result = customer_op.register_customer(username, password, user_email, user_mobile)
if result == True:
return
else:
Interface.print_error_message("CustomerOperation.register", result)
```
This function displays a list of customers for admin management. It allows the admin to navigate through the list (next page, previous page, or quit).
`show_orders()`
```python
def show_customers():
page_number = 1
while True:
customer_list = customer_op.get_customer_list(page_number)
if not customer_list:
Interface.print_message("No customers to show.")
break
Interface.show_list(current_logged_in_customer.user_role, "Customer", customer_list)
action, = Interface.get_user_input("Enter 'n' for the next page, 'p' for the previous page, or 'q' to quit: ", 1)
if action == "n":
page_number += 1
elif action == "p":
page_number -= 1
if page_number < 1:
page_number = 1
elif action == "q":
break
```
This function displays a list of orders for the admin, with options to navigate through the list or quit.
`generate_test_data()`
```python
def show_orders():
page_number = 1
while True:
order_list = order_op.get_order_list(current_logged_in_customer.user_id, page_number)
if not order_list:
Interface.print_message("No orders to show.")
break
Interface.show_list(current_logged_in_customer.user_role, "Order", order_list)
action, = Interface.get_user_input("Enter 'n' for the next page, 'p' for the previous page, or 'q' to quit: ", 1)
if action == "n":
page_number += 1
elif action == "p":
page_number -= 1
if page_number < 1:
page_number = 1
elif action == "q":
break
```
This function generates test data for products and orders. It calls methods to extract products from files and generate test order data.
`generate_all_statistical_figures()`
```python
def generate_test_data():
product_op.extract_products_from_files()
order_op.generate_test_order_data()
Interface.print_message("Test data generated successfully.")
```
This function generates various statistical figures for products and orders, including category, discounts, likes count, and more.
`delete_all_data()`
```python
def generate_all_statistical_figures():
product_op.generate_category_figure()
product_op.generate_discount_figure()
product_op.generate_likes_count_figure()
product_op.generate_discount_likes_count_figure()
order_op.generate_all_customers_consumption_figure()
order_op.generate_all_top_10_best_sellers_figure()
Interface.print_message("Statistical figures generated successfully.")
```
This function deletes all data, including customers, products, and orders.
`show_profile()`
```python
def delete_all_data():
customer_op.delete_all_customers()
product_op.delete_all_products()
order_op.delete_all_orders()
Interface.print_message("All data deleted successfully.")
```
This function displays the profile of the logged-in customer, showing details like username, registration time, role, email, and mobile.
`update_profile()`
```python
def show_profile():
global current_logged_in_customer
Interface.print_message(f"\nuser_name: {current_logged_in_customer.user_name}")
Interface.print_message(f"user_registration_time: {current_logged_in_customer.user_register_time}")
Interface.print_message(f"user_role: {current_logged_in_customer.user_role}")
Interface.print_message(f"user_email: {current_logged_in_customer.user_email}")
Interface.print_message(f"user_mobile: {current_logged_in_customer.user_mobile}")
Interface.print_message("\n")
```
This function allows the customer to update their profile by providing an attribute name (email or mobile) and the updated value.
`main()`
```python
def update_profile():
global current_logged_in_customer
attribute_name, = Interface.get_user_input("What do you want to update (email or mobile): ", 1)
value, = Interface.get_user_input("Enter the updated value: ", 1)
if not customer_op.update_profile(attribute_name, value, current_logged_in_customer):
Interface.print_message("Cannot update the profile.")
else:
Interface.print_message("Profile updated successfully.")
```
The `main()` function is the entry point of the program. It checks if data folders exist, registers an admin, and then presents menus and options for users (customers or admin) to interact with the e-commerce system.
Conclusion
By following this guide, you'll gain valuable insights into building a simple e-commerce simulator in Python. The code structure and functions provide a robust foundation for creating an e-commerce system that accommodates the needs of both customers and administrators. This guide demonstrates how to effectively organize and implement various e-commerce components, fostering your ability to develop more advanced and customized solutions for online businesses. With these newfound skills, you're well on your way to building dynamic e-commerce platforms, exploring endless possibilities for innovation and entrepreneurship in the digital marketplace.
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