python - 这个简单的 Python 列表的语法有什么问题？

Question

也许我已经对 Python 生疏了。为什么在粘贴到 Python shell 时这是 Not Acceptable ？

hdr_filenames = [
    "20210311_105300_HDR.jpg",
    "20210311_105306_HDR.jpg",
    "20210311_105310_HDR.jpg",
    "20210311_105314_HDR.jpg",
    "20210311_105341_HDR.jpg",    # order of last two have reversed exposures   
    "20210311_105323_HDR.jpg"
    ]

当将其复制到运行 python3 的 xterm 中的提示时，我得到(更不用说古怪的复古术语):

编辑:忘记报告一些基本的明显信息我很傻:这是 Python 3.9.1 版，在大约一个月前更新的 Arch Linux 上。

Answer 1

所以，我在这里没有完整的答案，但这与新的 PEG 解析器有关 that debuted in Python 3.9 ，因为当我使用它时(它是 Python 3.9 上的默认解析器)，我得到了同样的错误:

Python 3.9.1 (default, Dec 11 2020, 06:28:49)
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> hdr_filenames = [
    "20210311_105300_HDR.jpg",
    "20210311_105306_HDR.jpg",
    "20210311_105310_HDR.jpg",
    "20210311_105314_HDR.jpg",
    "20210311_105341_HDR.jpg",    # order of last two have reversed exposures
    "20210311_105323_HDR.jpg"
    ]
  File "<stdin>", line 1
        ]
         ^
SyntaxError: multiple statements found while compiling a single statement

但是您可以通过传递命令行选项来恢复到旧的 LL(1) 解析器，瞧!没有错误:

(py39) juanarrivillaga@50-254-139-253-static % python -X oldparser
Python 3.9.1 (default, Dec 11 2020, 06:28:49)
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> hdr_filenames = [
    "20210311_105300_HDR.jpg",
    "20210311_105306_HDR.jpg",
    "20210311_105310_HDR.jpg",
    "20210311_105314_HDR.jpg",
    "20210311_105341_HDR.jpg",    # order of last two have reversed exposures
    "20210311_105323_HDR.jpg"
    ]
>>> exit()

有兴趣者，相关PEP 617关于新的解析器。
编辑
因此，这似乎不再是 Python 3.9.2(我相信是当前最新版本)上的问题。所以也许升级？

Python 3.9.2 (default, Mar  3 2021, 11:58:52)
[Clang 10.0.0 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> hdr_filenames = [
...     "20210311_105300_HDR.jpg",
...     "20210311_105306_HDR.jpg",
...     "20210311_105310_HDR.jpg",
...     "20210311_105314_HDR.jpg",
...     "20210311_105341_HDR.jpg",    # order of last two have reversed exposures
...     "20210311_105323_HDR.jpg"
...     ]
>>>