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fix: set conda DLL PATH at batch level before Python starts

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os.environ['PATH'] set from inside Python does not affect the Windows
DLL loader used by ctypes.WinDLL — the loader reads the process PATH
at load time, not from Python's env dict. Set PATH in the .bat files
before python.exe is launched so tesseract51.dll's transitive deps
(leptonica, zlib, libpng, etc.) are findable by the loader.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
alex
2026-05-24 14:10:00 +02:00
parent 18c08a4c65
commit a77dafaf08
2 changed files with 14 additions and 0 deletions
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7
install.bat
View File

@@ -91,6 +91,13 @@ exit /b 1
:env_created
echo Botty Python: %PYTHON%
:: Prepend conda DLL dirs to PATH at the process level so the Windows DLL
:: loader finds tesseract51.dll's transitive deps (leptonica, zlib, etc.)
:: when ctypes loads it. os.environ['PATH'] set from inside Python is too late.
for %%F in ("%PYTHON%") do set "_CONDA_ENV=%%~dpF"
set "_CONDA_ENV=%_CONDA_ENV:~0,-1%"
set "PATH=%_CONDA_ENV%\Library\bin;%_CONDA_ENV%\Library\mingw-w64\bin;%_CONDA_ENV%\Library\usr\bin;%PATH%"
:: --- Force-reinstall the tesserocr wheel so the correct binary is always used ---
echo.
echo Installing tesserocr wheel...

7
run_botty.bat
View File

@@ -5,6 +5,13 @@ cd /d "%BOTTY_DIR%"
call "%BOTTY_DIR%find_python.bat"
:: Prepend conda DLL dirs to PATH at the process level so the Windows DLL
:: loader finds tesseract51.dll's transitive deps (leptonica, zlib, etc.)
:: when ctypes loads it. os.environ['PATH'] set from inside Python is too late.
for %%F in ("%PYTHON%") do set "_CONDA_ENV=%%~dpF"
set "_CONDA_ENV=%_CONDA_ENV:~0,-1%"
set "PATH=%_CONDA_ENV%\Library\bin;%_CONDA_ENV%\Library\mingw-w64\bin;%_CONDA_ENV%\Library\usr\bin;%PATH%"
echo Launching Botty ...
%PYTHON% "%BOTTY_DIR%src\main.py"
pause