python - 使用 pathlib 时，出现错误：TypeError: invalid file: PosixPath('example.txt')

Question

我正在使用 Python 3 的pathlib模块，如下所示：

from pathlib import Path

filename = Path(__file__).parent / "example.txt"
contents = open(filename, "r").read()

但我在某些机器上收到此错误：

TypeError: invalid file: PosixPath('example.txt')

但在我的机器上它可以工作。

Answer 1

pathlib integrates seemlessly with open only in Python 3.6 and later. From Python 3.6's release notes:

The built-in open() function has been updated to accept os.PathLike objects, as have all relevant functions in the os and os.path modules, and most other functions and classes in the standard library.

To get it to work in Python 3.5 and Python 3.6, just convert the object to a string:

contents = open(str(filename), "r").read()