diff --git a/context-managers.py b/context-managers.py
index 93cb5eb..5b48baa 100755
--- a/context-managers.py
+++ b/context-managers.py
@@ -9,6 +9,7 @@ from tempfile import mkdtemp
 import os
 import shutil
 
+
 @contextmanager
 def working_directory(path):
     current_dir = os.getcwd()
@@ -28,8 +29,6 @@ def just_a_test():
         print "finally!"
 
 
-
-
 @contextmanager
 def temporary_dir(*args, **kwds):
     name = mkdtemp(*args, **kwds)
@@ -39,7 +38,6 @@ def temporary_dir(*args, **kwds):
         shutil.rmtree(name)
 
 
-
 with working_directory("/tmp"), just_a_test():
     # do something within data/stuff
     print os.getcwd()
diff --git a/doctest_test.py b/doctest_test.py
index 3ebea9c..e97861a 100644
--- a/doctest_test.py
+++ b/doctest_test.py
@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+
 def foo(n):
     """Returns n times foo, and a period.
 
@@ -21,6 +22,7 @@ def foo(n):
     else:
         return ""
 
+
 def _test():
     import doctest
     doctest.testmod()
diff --git a/least-squares.py b/least-squares.py
index 9603523..4c0aa3a 100755
--- a/least-squares.py
+++ b/least-squares.py
@@ -9,7 +9,7 @@ b1 = Symbol('b1')
 b2 = Symbol('b2')
 
 # Data points
-data = [(1,14), (2, 13), (3, 12), (4, 10), (5,9), (7,8), (9,5)]
+data = [(1, 14), (2, 13), (3, 12), (4, 10), (5, 9), (7, 8), (9, 5)]
 
 # S is the function to minimize:
 #
diff --git a/pep8.sh b/pep8.sh
new file mode 100755
index 0000000..f0d8a16
--- /dev/null
+++ b/pep8.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+find . -name "*.py" -not -name test_swig.py -not -name test_swig_opencv.py \
+  | xargs pep8
diff --git a/test_swig_test.py b/test_swig_test.py
index 0cb5409..d032dd4 100644
--- a/test_swig_test.py
+++ b/test_swig_test.py
@@ -2,8 +2,8 @@ from __future__ import division, print_function
 import test_swig
 
 # FIXME
-#print(test_swig.My_variable)
-#assert(test_swig.My_variable == 3.0)
+# print(test_swig.My_variable)
+# assert(test_swig.My_variable == 3.0)
 
 print(test_swig.fact(5))
 assert(test_swig.fact(5) == 120)