Use pyupgrade to upgrade the code to use Python3 conventions (#138)

The pyupgrade project is available at
https://github.com/asottile/pyupgrade and can be installed through pip.

The pyupgrade tool automatically upgrades syntax for newer versions of
the language. As pyparsing is now Python 3 only, can apply some cleanups
and simplifications. Ran the tool using the following command:

    $ find . -name \*.py -exec pyupgrade --py3-plus {} \;

For now, pyparsing.py was skipped while it is refactored to a package.

1 files changed, 3 insertions, 3 deletions

diff --git a/examples/simpleBool.py b/examples/simpleBool.py
index 28490a2..81f5049 100644
--- a/examples/simpleBool.py
+++ b/examples/simpleBool.py
@@ -16,7 +16,7 @@ from pyparsing import infixNotation, opAssoc, Keyword, Word, alphas
 

 # define classes to be built at parse time, as each matching

 # expression type is parsed

-class BoolOperand(object):

+class BoolOperand:

     def __init__(self,t):

         self.label = t[0]

         self.value = eval(t[0])

@@ -27,7 +27,7 @@ class BoolOperand(object):
     __repr__ = __str__

 

 

-class BoolBinOp(object):

+class BoolBinOp:

     def __init__(self,t):

         self.args = t[0][0::2]

     def __str__(self):

@@ -46,7 +46,7 @@ class BoolOr(BoolBinOp):
     reprsymbol = '|'

     evalop = any

 

-class BoolNot(object):

+class BoolNot:

     def __init__(self,t):

         self.arg = t[0][1]

     def __bool__(self):