Since Python 3.11, binascii.a2b_base64() function became to provide strict_mode keyword parameter. ¹

Related links

• Python docs: https://docs.python.org/3/library/binascii.html?highlight=binascii#binascii.a2b_base64
• RustPython implementation:

  RustPython/stdlib/src/binascii.rs

  Line 147 in 1d8269f

  fn a2b_base64(s: ArgAsciiBuffer, vm: &VirtualMachine) -> PyResult<Vec<u8>> {

• CPython implementation: https://github.com/python/cpython/blob/deaf509e8fc6e0363bd6f26d52ad42f976ec42f2/Modules/binascii.c#L388