Python Valideer Class Library Introduction Guide

Python Verification Library Introduction Guide The Python verification class library is a class library used to perform data verification and verification in Python applications.It provides rich functions to help developers easily verify user input, API parameters and other data.In this guide, we will introduce how to use the Python verification class library for data verification and verification. Install Python Verification Library To start using the Python verification class library, you need to install it first.You can use the PIP command to install the Python verification class library: python pip install validate Introduce the verification class library After installing the Python verification class library, we need to introduce it in the application.You can introduce the Python verification class library like the following: python from validate import Validator Create verification rules When using the Python verification class library, we need to define the verification rules.We can use different rules to verify different types of data, such as string, integer, floating point number, etc.The following is a simple example. How to define a verification rule: python rules = { 'name': 'required|string', 'age': 'required|integer', 'email': 'required|email' } Execute verification Once we define the verification rules, we can use the Python verification class library to execute the verification.By passing the verified data and definition rules to the verification device, we can easily verify.The following is an example code: python data = { 'name': 'John Doe', 'age': 25, 'email': 'johndoe@example.com' } v = Validator() if v.validate(data, rules): Print ('Data Verification Pass!') else: Print ('data verification failed!') print(v.errors) In this example, we define a data dictionary containing names, age, and emails, and then use the verification device to perform verification.If the data verification passes, the message "Data Verification Pass!" Will be printed, otherwise the error message will be printed. Summarize Through this guide, we have learned how to install, introduce, and use the Python verification class library for data verification and verification.The Python verification class library provides rich functions and flexible verification rules to help developers easily verify and verify data.It is hoped that this guide can help you start using the Python verification class library for data verification and verification.