Use /usr/bin/env python over /usr/bin/python

benchmark.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
 # This file is part of the python-chess library.

perft.py

@@ -1,11 +1,11 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# A test set of more than 6000 positions. The perft node count for a given depth
-# is the number of legal move sequences from that position. This can be used
-# to check correctness and speed of the legal move generator.
+# Run a test set of more than 6000 positions. The perft node count for a given
+# depth is the number of legal move sequences from that position. This can be
+# used to check correctness and speed of the legal move generator.
 #
-# The original test suite was created by Marcel van Kervinck and found at
+# The original test suite was created by Marcel van Kervinck and found at:
 # http://marcelk.net/rookie/nostalgia/v3/perft-random.epd
 
 from __future__ import print_function

setup.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
 # This file is part of the python-chess library.
@@ -23,6 +23,7 @@
 import setuptools
 import sys
 
+
 def read_description():
     """
     Reads the description from README.rst and substitutes mentions of the
@@ -47,6 +48,7 @@ def read_description():
 
     return description
 
+
 def dependencies():
     deps = []
 
@@ -55,6 +57,7 @@ def dependencies():
 
     return deps
 
+
 setuptools.setup(
     name="python-chess",
     version=chess.__version__,

test.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
 # This file is part of the python-chess library.