Python reference (import) folder's py file method

This article describes how to import py files in the Python import folder, the directory must contain _ init __. the py file is only available. if you need a friend, you can refer to the Python import file inclusion function, which is similar to the PHP include function, but more specifically, it should be more like The require in PHP, as long as the import in Python does not exist, the error code cannot be executed. To include files in the directory, you only need to set the correct path in PHP. Python is different. let's take a look at this example.

Directory structure:

A. py: import the B. py file under the dir directory. The a. py code is as follows:

The code is as follows:

# Coding = UTF-8
"B. py file under the import dir Directory"

Import dir. B

Print dir. B. name

An error is returned when a. py is executed.

The system prompts that the module name dir. B cannot be found. By searching for official documents, we found that a _ init _. py file must be declared under the Directory to contain files, even if the file is empty. Of course, this file can also initialize some data.

Create the _ init _. py file under dir. the directory structure is as follows:

Execute a. py again. everything is OK!