All for projects in this space, but you're going to generate so much confusion naming it the same thing as Eli Bendersky's pycparser (which you even acknowledge the existence of in your Similar Projects section).
The alternate capitalization makes no difference to a search engine.
I know, that's unfortunate. I think I learned only later about Eli Bendersky's pycparser and then I was too lazy to change the name, although you are right, I should have. But as my project is mostly a toy project at the moment, and not sure if this will every get serious usage, I'm not sure if this is too critical. Also, whoever searches for pycparser, and ends up at this homepage, will find the link to the real pycparser project right there in the readme. Both projects are quite old btw. I just checked. Eli Bendersky's pycparser is from May 2010 (or that was the first Git commit, which seems to be an import from an SVN repo), and I started mine in June 2011. I never really got any complaints about confusions.
pycparser doesn't do anything about interpreting C, it ends its job at creating the AST.
By the way, pycparser has no external dependencies. It uses PLY but vendors it. I had to port it to Python 3 before PLY did itself, and stuck to the vendoring because it's so convenient.
The alternate capitalization makes no difference to a search engine.