Python Tutorial: Learn how to read .py files
可以通过以下两种方式读取 .py 文件并导入自定义模块:使用 importlibimportlib 模块提供了 import_module() 函数,可动态导入文件,并返回指向导入模块的引用。 使用 open()open() 函数可打开文件并返回指向文件对象的引用,文件对象具有 read() 方法,可读取文件内容。
Python 教程:读取 .py 文件
导入必要的模块
import os import importlib
使用 importlib
importlib
模块提供了一个 import_module()
函数,可动态导入文件。此方法返回指向导入模块的引用。
file_path = "my_module.py" my_module = importlib.import_module(file_path)
使用 open()
open()
函数可打开文件并返回指向文件对象的引用。文件对象具有 read()
方法,可读取文件内容。
with open(file_path, "r") as f: file_contents = f.read()
实战案例:读取自定义模块
假设有一个名为 my_module.py
的自定义模块:
# my_module.py def greet(name): print(f"Hello, {name}!")
现在,让我们从另一个脚本中读取此模块:
# main.py import os import importlib file_path = "my_module.py" my_module = importlib.import_module(file_path) my_module.greet("John")
输出:
Hello, John!
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