L10nUtil: Cannot generate HTML file from MD

[wmhn1872265132]

Steps to reproduce:

Run:

cd /d %ProgramFiles(X86)%\NVDA
L10nUtil xliff2html -t userGuide "F:\userGuide.xliff" "F:\userGuide.html"

Actual behavior:

Detected language zh-CN for xliff file F:\userGuide.xliff, source=False
Generating markdown file ..\..\Users\WMHN1\AppData\Local\Temp\tmpo9ntm_dq.md from F:\userGuide.xliff...
Generated markdown file with 5642 total lines, 3833 translatable strings, and 3833 translated strings. Ignoring 0 bad translated strings
Converting userGuide (lang='zh-CN') at C:\Users\WMHN1\AppData\Local\Temp\tmpo9ntm_dq.md to F:\userGuide.html
Traceback (most recent call last):
  File "l10nUtil.py", line 906, in <module>
  File "l10nUtil.py", line 853, in main
  File "md2html.pyc", line 192, in main
  File "md2html.pyc", line 141, in _generateSanitizedHTML
  File "markdown\core.pyc", line 481, in markdown
  File "markdown\core.pyc", line 126, in __init__
  File "markdown\core.pyc", line 179, in registerExtensions
  File "markdown\core.pyc", line 225, in build_extension
  File "importlib\__init__.pyc", line 126, in import_module
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1140, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'pymdownx'

Expected behavior:

Properly generate HTML files

NVDA logs, crash dumps and other attachments:

N/A

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

2025.3.0.52365

Windows version:

Windows 10 21H2 (AMD64) Build 19044.6216

Name and version of other software in use when reproducing the issue:

N/A

Other information about your system:

N/A

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

2025.2 and previous versions work fine

If NVDA add-ons are disabled, is your problem still occurring?

Not relevant

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Not relevant

[CyrilleB79]

Confirmed on my side with 2025.3beta3. It used to word in an older version of NVDA, I do not remember which one.

@wmhn1872265132 wrote:

2023.2 and previous versions work fine

Probably an error in the version number since l10nUtil is not so old. Which version did you mean?

[wmhn1872265132]

Sorry about the typo. I meant versions 2025.2 and earlier.

[seanbudd]

Hi - @wmhn1872265132 - we will extend the translation freeze by a week to allow for time to use 2025.3beta4 to submit translations.

[wmhn1872265132]

It doesn't matter, the simplified Chinese translation has been completed

[seanbudd]

Okay right - this is just for previewing files anyway? So it shouldn't have affected submissions.

[wmhn1872265132]

Okay right - this is just for previewing files anyway? So it shouldn't have affected submissions.

Yes

[ruifontes]

I haven't submited the translations of changes.md...
I would like to have some more days...

[CyrilleB79]

It's quite unlikely to happen. But in case we have another translation merge into beta, I'd also be interested for French translation.

I must confess that we have translated the change log very late, one or two hours before the deadline. And to do things quickly, I have not bothered to re-download the l10nUtil from an older version and modify paths in my workflow to check the work. So we have end up with 2 strings to fix in the rc.

If there is no other merge from Crowdin to beta before 2025.3, the fixes will just land in 2026.1, not a big deal.