Python Valideer class library installation tutorial

Python Valideer is a Python class library for data verification. It can help developers verify and clean up data input to ensure that the data meets the expected format and specifications.This tutorial will help you understand how to install the Python Valideer class library and start using it for data verification. It is very simple to install the Python Valideer class library. You only need to use the PIP command for installation.Open the command line interface and enter the following command: pip install valideer After executing this order, wait a moment, and the Python Valideer class library will be successfully installed in your Python environment. Next, let's introduce the use of Python Valideer class libraries through a simple example.Suppose we have a data dictionary that contains the name and age of the user. We want to verify whether the format of the data dictionary is legal, and we can achieve it through the following code: python import valideer # Create data verification rules schema = { "name": valideer.String(), "age": valideer.Integer(min_value=18) } # To be verified data data = { "name": "Zhang San", "age": 20 } #Express data verification result = valideer.validate(data, schema) # Output verification results print(result) In this code, we first introduced the Python Valideer class library, and then created a data verification rule schema. It stipulates that the name must be a string type, the age must be an integer and the minimum value is 18.Then define the data data to be verified, including information of name and age.Finally, we call the valueer.Validate () method to verify the data and print the verification results. Through such a simple step, you can easily install and start using the Python Valideer class library.I hope this tutorial can help you better understand and use the Python Valideer class library.I wish you a happy programming!