ModuleNotFoundError: No module named 'webencodings'

html5lib needs the tiny webencodings package and it is not installed. Run python -m pip install webencodings (or reinstall html5lib normally so pip resolves it). The import works right after.

The error

ModuleNotFoundError: No module named 'webencodings'

Fix it

1. Install webencodings

python -m pip install webencodings

Expected: Successfully installed webencodings-....

2. Confirm the chain

python -c "import html5lib; print('ok')"

Expected: prints ok.

3. If it recurs, reinstall html5lib with dependencies

python -m pip install --force-reinstall html5lib

Expected: pip pulls webencodings back in as a declared dependency.

When this applies

• import html5lib fails naming webencodings
• a --no-deps or partial install

When it does NOT apply

• No module named 'html5lib' is the parent package missing

Compatibility

html5lib 1.x declares webencodings as a dependency. webencodings itself is pure Python and dependency-free.

Why it happens

webencodings is a small single-purpose package (character encoding labels) that html5lib imports at load. Normal installs always include it; its absence means the dependency set was disturbed the same way html5lib itself goes missing.

Edge cases

• webencodings has had one release in years and is stable. Any version works.

In gh:dmitri-sintsov/djk-sample#1 the project failed importing html5lib with ModuleNotFoundError: No module named 'webencodings', and installing webencodings (restoring html5lib's declared dependency) fixed the import. Source: https://github.com/dmitri-sintsov/djk-sample/issues/1