Monkeypatching html.parser fails when importing with zipimporter #1132
Description
When trying to monkeypatch a copy of html.parser, markdown fails when html.parser comes from a zip file and an instance of zipimporter is used as the loader.
To reproduce
- Download an embeddable package version of Python like the latest Windows embeddable package (64-bit) (Python 3.9.5)
- Unzip it
- Copy the markdown package into the python folder
- Run python
- Import markdown
- Notice the following traceback:
$ python Python 3.9.5 (tags/v3.9.5:0a7dcbd, May 3 2021, 17:27:52) [MSC v.1928 64 bit (AMD64)] on win32 >>> import markdown Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\Rémy Roy\Projects\CDDA-Game-Launcher\build\test\markdown\__init__.py", line 29, in <module> from .core import Markdown, markdown, markdownFromFile # noqa: E402 File "C:\Users\Rémy Roy\Projects\CDDA-Game-Launcher\build\test\markdown\core.py", line 27, in <module> from .preprocessors import build_preprocessors File "C:\Users\Rémy Roy\Projects\CDDA-Game-Launcher\build\test\markdown\preprocessors.py", line 29, in <module> from .htmlparser import HTMLExtractor File "C:\Users\Rémy Roy\Projects\CDDA-Game-Launcher\build\test\markdown\htmlparser.py", line 31, in <module> spec.loader.exec_module(htmlparser) AttributeError: 'zipimporter' object has no attribute 'exec_module' The main issue is that the zipimporter loader does not have an exec_module method.