How To Install aiohttp In Python

In Python crawlers, if you want to require concurrent HTTP requests, you typically use the python requests module. But the python requests module are synchronous libraries, if you want to send asynchronous requests you need to install the python aiohttp library.

How To Use Python Operator Module With Example

The Python Operator module allows it to support functional programming. Suppose we need a function to calculate factorial, the general approach is to use recursion. If you use functional programming, there are two ways, one is to use lambda, the other is to use the arithmetic function of the Python Operator module.