Python parsing module Code

Update oc.py example: fix regex for '==' operator, add packrat parsing and function call as expression operand

Update oc.py example: fix regex for '==' operator, add packrat parsing and function call as expression operand

Tag for 2.2.0 release

Add minor enht for infixNotation, to accept a sequence of parse actions at each precedence level

Prep for 2.2.0 release

Fix error and expand docstring examples for ParserElement.searchString

Fix deprecated use of '\' as described in https://bugs.python.org/issue27364 (Deprecated in Python 3.6, will become SyntaxError in a future release)

Fix deprecated use of '\' as described in https://bugs.python.org/issue27364 (Deprecated in Python 3.6, will become SyntaxError in a future release)

Updated setup.py to address recursive import problems now that pyparsing is part of 'packaging' (used by setuptools).

Minor change when using '-' operator, to be compatible with ParserElement.streamline() method.