Efficient Context-Free Grammar parser, preferably Python-friendly

Question

I am in need of parsing a small subset of English for one of my project, described as a context-free grammar with (1-level) feature structures (example) and I need to do it

Answer 1

If it can be expressed as a PEG language (I don't think all CFGs can, but supposedly many can), then you might use pyPEG, which is supposed to be linear-time when using a packrat parsing implementation (although potentially prohibitive on memory usage).

I don't have any experience with it as I am just starting to research parsing and compilation again after a long time away from it, but I am reading some good buzz about this relatively up-to-date technique. YMMV.