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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                常會遇到的一個情景是在GitHub上下載了一個repo,在其他地方使用它。 ```py import sys sys.path.append(絕對路徑字符串) ``` Python 相對導入與絕對導入,這兩個概念是相對于包內(含有`__init__.py`文件)導入而言的。包內導入即是包內的模塊導入包內部的模塊。 **相對導入:** ```py from . import some_class #本包 from ..some_package import some_function #上一層的some_package包 ``` **絕對導入:** ```py from package1 import module1 from package1.module2 import function1 from package2 import class1 from package2.subpackage1.module5 import function2 ``` 注意:即使在一個包內,也不能直接`import A`,而是要`from . import A`或者`from package_name import A` 例如: ``` thing ├── books │ ├── adventure.py │ ├── history.py │ ├── horror.py │ ├── __init__.py │ └── lovestory.py ├── furniture │ ├── armchair.py │ ├── bench.py │ ├── __init__.py │ ├── screen.py │ └── stool.py └── __init__.py ``` 那么如果在 stool 中引用 bench,則有如下幾種方式: ```py from . import bench # 此為 relative import from furniture import bench # 此為 absolute import ```
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