Upgrade pyparsing to 2.2.1
Upgrade pyparsing to 2.2.1

sbidoul/pip,pradyunsg/pip,xavfernandez/pip,pradyunsg/pip,pfmoore/pip,xavfernandez/pip,rouge8/pip,pypa/pip,sbidoul/pip,rouge8/pip,rouge8/pip,pypa/pip,pfmoore/pip,xavfernandez/pip