ASN.1 types and codecs (BER, CER, DER) implementation in Python programming language.
A collection of various ASN.1-based protocols data structures is supplied in a dedicated Python package.
Project moved to GitHub: https://github.com/etingof/pyasn1
Python modules that wrap Lev Walkin's asn1c code.
ASN.1 notation is translated to C-code and this code is built into python module that can der-encode and -decode structures from ASN.1 description.