gh-156939: Document that PyBytesObject ends with a NUL byte

[vstinner]

• Issue: C API: Detect buffer overflow in PyBytesWriter #156939

[read-the-docs-community]

Documentation build overview

📚 cpython-previews | 🛠️ Build #34478641 | 📁 Comparing 65550b7 against main (9398655)

  🔍 Preview build  

1 file changed

± c-api/bytes.html

[vstinner]

The trailing NUL byte property is already documented in:

• PyBytes_AsString: "The last byte in the buffer is always null, regardless of whether there are any other null bytes."
• PyBytes_AsStringAndSize: "The buffer refers to an internal buffer of obj, which includes an additional null byte at the end (not counted in length)."