Prepare For Windows User

For Windows users, WeasyPrint requires native system libraries (Cairo, Pango) that are not available by default. The recommended way to install them is via MSYS2.

1. Install MSYS2

Download and install MSYS2 from https://www.msys2.org/, then follow the first-time setup instructions on the site.

2. Install the required libraries

Open the MSYS2 UCRT64 terminal (search for "MSYS2 UCRT64" in the Start menu) and run:

pacman -S mingw-w64-ucrt-x86_64-pango

3. Add MSYS2 to your Windows PATH

Add the MSYS2 UCRT64 bin directory to your Windows PATH environment variable:

C:\msys64\ucrt64\bin

To do this permanently: 1. Open System Properties → Advanced → Environment Variables 2. Under System variables, select Path and click Edit 3. Click New and add C:\msys64\ucrt64\bin 4. Click OK to save

4. Reactivate your virtual environment

Open a new Command Prompt or PowerShell window (so the updated PATH takes effect), then reactivate your virtual environment:

.\venv\Scripts\activate

5. Verify the installation

python -c "from weasyprint import HTML; print('OK')"

If you see OK, WeasyPrint is working correctly and you can proceed with installing the remaining dependencies.

Note: If MSYS2 was installed to a different directory (not C:\msys64), adjust the path in step 3 accordingly.