python - 使用 pathlib 将目录添加到 sys.path

Question

我正在尝试使用如下代码将目录添加到 PATH:

PROJECT_DIR = Path(__file__).parents[2]
sys.path.append(
    PROJECT_DIR / 'apps'
)

这是行不通的。如果我打印 sys.path，我会看到类似这样的内容:

[..., PosixPath('/opt/project/apps')]

我该如何修复这段代码？写str(PROJECT_DIR/'apps')是否正常？

Answer 1

来自docs :

A program is free to modify this list for its own purposes. Only strings should be added to sys.path; all other data types are ignored during import.

将路径作为字符串添加到 sys.path:

PROJECT_DIR = Path(__file__).parents[2]
sys.path.append(
    str(PROJECT_DIR / 'apps')
)