Python Assert Function Explained

The assert function in Python is used to check if an expression is true. If it is true, nothing happens. If it is false, an AssertionError exception is raised with an error message displayed. Its syntax is:

assert expression, [message]

expression is the expression to be evaluated, triggering an exception if it is false; message is an optional parameter used to specify the error message displayed when the exception is triggered.

The assert statement is commonly used in the debugging and testing phases of a program to check its correctness and help programmers identify issues early in the development process. It is generally not recommended to use assert in a production environment as it can impact the performance of the program.