从同一目录导入

from . import the_file_you_want_to_import 

要从目录应包含的子目录导入

init.py

那就别写你的文件了

从目录导入your_file

如果你在同一个文件夹中有filename.py，你可以像这样轻松地导入它:

import filename

我使用的是python3.7

太简单了， 创建一个文件__init__.py是类目录，然后像下面这样将它导入到你的脚本中(导入所有大小写)

from classes.myscript import *

只导入选定的类

from classes.myscript import User
from classes.myscript import Dir

如果user.py和dir.py不包括类，那么

from .user import User
from .dir import Dir

不起作用。然后您应该导入as

from . import user
from . import dir

# My Python version: 3.7
# IDE: Pycharm 2021.1.2 Community

# Have "myLib" in folder "labs":

class Points:
    def __init__(self, x = 0, y = 0):
        self.__x = x
        self.__y = y
    def __str__(self):
        return f"x = {self.__x}, y = {self.__y}"

# Have "myFile" in (same) folder "labs":

from myFile import Point

p1 = Point(1, 4)
p2 = Point(1, 4)
print(f"p1: {p1}, p2: {p2}")

# Result:
# p1: x = 1, y = 4, p2: x = 1, y = 4

# Good Luck!

from user import User 
from dir import Dir