rm extra whitespace in python, per PEP8
diff --git a/test/cleantests.py b/test/cleantests.py
index c38fd8f..1a4f1f1 100644
--- a/test/cleantests.py
+++ b/test/cleantests.py
@@ -4,7 +4,7 @@
 
 paths = []
 for pattern in [ '*.actual', '*.actual-rewrite', '*.rewrite', '*.process-output' ]:
-    paths += glob.glob( 'data/' + pattern )
+    paths += glob.glob('data/' + pattern)
 
 for path in paths:
-    os.unlink( path )
+    os.unlink(path)
diff --git a/test/generate_expected.py b/test/generate_expected.py
index f668da2..2bbf569 100644
--- a/test/generate_expected.py
+++ b/test/generate_expected.py
@@ -1,10 +1,10 @@
 from __future__ import print_function
 import glob
 import os.path
-for path in glob.glob( '*.json' ):
+for path in glob.glob('*.json'):
     text = file(path,'rt').read()
     target = os.path.splitext(path)[0] + '.expected'
-    if os.path.exists( target ):
+    if os.path.exists(target):
         print('skipping:', target)
     else:
         print('creating:', target)
diff --git a/test/pyjsontestrunner.py b/test/pyjsontestrunner.py
index 3f08a8a..afaabd9 100644
--- a/test/pyjsontestrunner.py
+++ b/test/pyjsontestrunner.py
@@ -15,50 +15,50 @@
 rewrite_path = base_path + '.rewrite'
 rewrite_actual_path = base_path + '.actual-rewrite'
 
-def valueTreeToString( fout, value, path = '.' ):
+def valueTreeToString(fout, value, path = '.'):
     ty = type(value) 
     if ty  is types.DictType:
-        fout.write( '%s={}\n' % path )
+        fout.write('%s={}\n' % path)
         suffix = path[-1] != '.' and '.' or ''
         names = value.keys()
         names.sort()
         for name in names:
-            valueTreeToString( fout, value[name], path + suffix + name )
+            valueTreeToString(fout, value[name], path + suffix + name)
     elif ty is types.ListType:
-        fout.write( '%s=[]\n' % path )
-        for index, childValue in zip( xrange(0,len(value)), value ):
-            valueTreeToString( fout, childValue, path + '[%d]' % index )
+        fout.write('%s=[]\n' % path)
+        for index, childValue in zip(xrange(0,len(value)), value):
+            valueTreeToString(fout, childValue, path + '[%d]' % index)
     elif ty is types.StringType:
-        fout.write( '%s="%s"\n' % (path,value) )
+        fout.write('%s="%s"\n' % (path,value))
     elif ty is types.IntType:
-        fout.write( '%s=%d\n' % (path,value) )
+        fout.write('%s=%d\n' % (path,value))
     elif ty is types.FloatType:
-        fout.write( '%s=%.16g\n' % (path,value) )
+        fout.write('%s=%.16g\n' % (path,value))
     elif value is True:
-        fout.write( '%s=true\n' % path )
+        fout.write('%s=true\n' % path)
     elif value is False:
-        fout.write( '%s=false\n' % path )
+        fout.write('%s=false\n' % path)
     elif value is None:
-        fout.write( '%s=null\n' % path )
+        fout.write('%s=null\n' % path)
     else:
         assert False and "Unexpected value type"
         
-def parseAndSaveValueTree( input, actual_path ):
-    root = json.loads( input )
-    fout = file( actual_path, 'wt' )
-    valueTreeToString( fout, root )
+def parseAndSaveValueTree(input, actual_path):
+    root = json.loads(input)
+    fout = file(actual_path, 'wt')
+    valueTreeToString(fout, root)
     fout.close()
     return root
 
-def rewriteValueTree( value, rewrite_path ):
-    rewrite = json.dumps( value )
+def rewriteValueTree(value, rewrite_path):
+    rewrite = json.dumps(value)
     #rewrite = rewrite[1:-1]  # Somehow the string is quoted ! jsonpy bug ?
-    file( rewrite_path, 'wt').write( rewrite + '\n' )
+    file(rewrite_path, 'wt').write(rewrite + '\n')
     return rewrite
     
-input = file( input_path, 'rt' ).read()
-root = parseAndSaveValueTree( input, actual_path )
-rewrite = rewriteValueTree( json.write( root ), rewrite_path )
-rewrite_root = parseAndSaveValueTree( rewrite, rewrite_actual_path )
+input = file(input_path, 'rt').read()
+root = parseAndSaveValueTree(input, actual_path)
+rewrite = rewriteValueTree(json.write(root), rewrite_path)
+rewrite_root = parseAndSaveValueTree(rewrite, rewrite_actual_path)
 
-sys.exit( 0 )
+sys.exit(0)
diff --git a/test/runjsontests.py b/test/runjsontests.py
index 19903b9..728d415 100644
--- a/test/runjsontests.py
+++ b/test/runjsontests.py
@@ -26,11 +26,11 @@
         pass  # python3
     status = pipe.close()
     return status, process_output
-def compareOutputs( expected, actual, message ):
+def compareOutputs(expected, actual, message):
     expected = expected.strip().replace('\r','').split('\n')
     actual = actual.strip().replace('\r','').split('\n')
     diff_line = 0
-    max_line_to_compare = min( len(expected), len(actual) )
+    max_line_to_compare = min(len(expected), len(actual))
     for index in range(0,max_line_to_compare):
         if expected[index].strip() != actual[index].strip():
             diff_line = index + 1
@@ -39,7 +39,7 @@
         diff_line = max_line_to_compare+1
     if diff_line == 0:
         return None
-    def safeGetLine( lines, index ):
+    def safeGetLine(lines, index):
         index += -1
         if index >= len(lines):
             return ''
@@ -49,66 +49,65 @@
   Actual:   '%s'
 """ % (message, diff_line,
        safeGetLine(expected,diff_line),
-       safeGetLine(actual,diff_line) )
+       safeGetLine(actual,diff_line))
         
-def safeReadFile( path ):
+def safeReadFile(path):
     try:
-        return open( path, 'rt', encoding = 'utf-8' ).read()
+        return open(path, 'rt', encoding = 'utf-8').read()
     except IOError as e:
         return '<File "%s" is missing: %s>' % (path,e)
 
-def runAllTests( jsontest_executable_path, input_dir = None,
+def runAllTests(jsontest_executable_path, input_dir = None,
                  use_valgrind=False, with_json_checker=False,
                  writerClass='StyledWriter'):
     if not input_dir:
-        input_dir = os.path.join( os.getcwd(), 'data' )
-    tests = glob( os.path.join( input_dir, '*.json' ) )
+        input_dir = os.path.join(os.getcwd(), 'data')
+    tests = glob(os.path.join(input_dir, '*.json'))
     if with_json_checker:
-        test_jsonchecker = glob( os.path.join( input_dir, '../jsonchecker', '*.json' ) )
+        test_jsonchecker = glob(os.path.join(input_dir, '../jsonchecker', '*.json'))
     else:
         test_jsonchecker = []
     failed_tests = []
     valgrind_path = use_valgrind and VALGRIND_CMD or ''
     for input_path in tests + test_jsonchecker:
-        expect_failure = os.path.basename( input_path ).startswith( 'fail' )
+        expect_failure = os.path.basename(input_path).startswith('fail')
         is_json_checker_test = (input_path in test_jsonchecker) or expect_failure
         print('TESTING:', input_path, end=' ')
         options = is_json_checker_test and '--json-checker' or ''
         options += ' --json-writer %s'%writerClass
-        cmd = '%s%s %s "%s"' % (
-            valgrind_path, jsontest_executable_path, options,
+        cmd = '%s%s %s "%s"' % (            valgrind_path, jsontest_executable_path, options,
             input_path)
         status, process_output = getStatusOutput(cmd)
         if is_json_checker_test:
             if expect_failure:
                 if not status:
                     print('FAILED')
-                    failed_tests.append( (input_path, 'Parsing should have failed:\n%s' %
-                                          safeReadFile(input_path)) )
+                    failed_tests.append((input_path, 'Parsing should have failed:\n%s' %
+                                          safeReadFile(input_path)))
                 else:
                     print('OK')
             else:
                 if status:
                     print('FAILED')
-                    failed_tests.append( (input_path, 'Parsing failed:\n' + process_output) )
+                    failed_tests.append((input_path, 'Parsing failed:\n' + process_output))
                 else:
                     print('OK')
         else:
             base_path = os.path.splitext(input_path)[0]
-            actual_output = safeReadFile( base_path + '.actual' )
-            actual_rewrite_output = safeReadFile( base_path + '.actual-rewrite' )
-            open(base_path + '.process-output', 'wt', encoding = 'utf-8').write( process_output )
+            actual_output = safeReadFile(base_path + '.actual')
+            actual_rewrite_output = safeReadFile(base_path + '.actual-rewrite')
+            open(base_path + '.process-output', 'wt', encoding = 'utf-8').write(process_output)
             if status:
                 print('parsing failed')
-                failed_tests.append( (input_path, 'Parsing failed:\n' + process_output) )
+                failed_tests.append((input_path, 'Parsing failed:\n' + process_output))
             else:
                 expected_output_path = os.path.splitext(input_path)[0] + '.expected'
-                expected_output = open( expected_output_path, 'rt', encoding = 'utf-8' ).read()
-                detail = ( compareOutputs( expected_output, actual_output, 'input' )
-                            or compareOutputs( expected_output, actual_rewrite_output, 'rewrite' ) )
+                expected_output = open(expected_output_path, 'rt', encoding = 'utf-8').read()
+                detail = (compareOutputs(expected_output, actual_output, 'input')
+                            or compareOutputs(expected_output, actual_rewrite_output, 'rewrite'))
                 if detail:
                     print('FAILED')
-                    failed_tests.append( (input_path, detail) )
+                    failed_tests.append((input_path, detail))
                 else:
                     print('OK')
 
@@ -120,7 +119,7 @@
             print(failed_test[1])
             print()
         print('Test results: %d passed, %d failed.' % (len(tests)-len(failed_tests),
-                                                       len(failed_tests) ))
+                                                       len(failed_tests)))
         return 1
     else:
         print('All %d tests passed.' % len(tests))
@@ -128,7 +127,7 @@
 
 def main():
     from optparse import OptionParser
-    parser = OptionParser( usage="%prog [options] <path to jsontestrunner.exe> [test case directory]" )
+    parser = OptionParser(usage="%prog [options] <path to jsontestrunner.exe> [test case directory]")
     parser.add_option("--valgrind",
                   action="store_true", dest="valgrind", default=False,
                   help="run all the tests using valgrind to detect memory leaks")
@@ -139,25 +138,25 @@
     options, args = parser.parse_args()
 
     if len(args) < 1 or len(args) > 2:
-        parser.error( 'Must provides at least path to jsontestrunner executable.' )
-        sys.exit( 1 )
+        parser.error('Must provides at least path to jsontestrunner executable.')
+        sys.exit(1)
 
-    jsontest_executable_path = os.path.normpath( os.path.abspath( args[0] ) )
+    jsontest_executable_path = os.path.normpath(os.path.abspath(args[0]))
     if len(args) > 1:
-        input_path = os.path.normpath( os.path.abspath( args[1] ) )
+        input_path = os.path.normpath(os.path.abspath(args[1]))
     else:
         input_path = None
-    status = runAllTests( jsontest_executable_path, input_path,
+    status = runAllTests(jsontest_executable_path, input_path,
                           use_valgrind=options.valgrind,
                           with_json_checker=options.with_json_checker,
                           writerClass='StyledWriter')
     if status:
-        sys.exit( status )
-    status = runAllTests( jsontest_executable_path, input_path,
+        sys.exit(status)
+    status = runAllTests(jsontest_executable_path, input_path,
                           use_valgrind=options.valgrind,
                           with_json_checker=options.with_json_checker,
                           writerClass='StyledStreamWriter')
-    sys.exit( status )
+    sys.exit(status)
 
 if __name__ == '__main__':
     main()
diff --git a/test/rununittests.py b/test/rununittests.py
index 54c4da4..dd1c9a3 100644
--- a/test/rununittests.py
+++ b/test/rununittests.py
@@ -11,18 +11,18 @@
 VALGRIND_CMD = 'valgrind --tool=memcheck --leak-check=yes --undef-value-errors=yes'
 
 class TestProxy(object):
-    def __init__( self, test_exe_path, use_valgrind=False ):
-        self.test_exe_path = os.path.normpath( os.path.abspath( test_exe_path ) )
+    def __init__(self, test_exe_path, use_valgrind=False):
+        self.test_exe_path = os.path.normpath(os.path.abspath(test_exe_path))
         self.use_valgrind = use_valgrind
 
-    def run( self, options ):
+    def run(self, options):
         if self.use_valgrind:
             cmd = VALGRIND_CMD.split()
         else:
             cmd = []
-        cmd.extend( [self.test_exe_path, '--test-auto'] + options )
+        cmd.extend([self.test_exe_path, '--test-auto'] + options)
         try:
-            process = subprocess.Popen( cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT )
+            process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
         except:
             print(cmd)
             raise
@@ -31,9 +31,9 @@
             return False, stdout
         return True, stdout
 
-def runAllTests( exe_path, use_valgrind=False ):
-    test_proxy = TestProxy( exe_path, use_valgrind=use_valgrind )
-    status, test_names = test_proxy.run( ['--list-tests'] )
+def runAllTests(exe_path, use_valgrind=False):
+    test_proxy = TestProxy(exe_path, use_valgrind=use_valgrind)
+    status, test_names = test_proxy.run(['--list-tests'])
     if not status:
         print("Failed to obtain unit tests list:\n" + test_names, file=sys.stderr)
         return 1
@@ -41,11 +41,11 @@
     failures = []
     for name in test_names:
         print('TESTING %s:' % name, end=' ')
-        succeed, result = test_proxy.run( ['--test', name] )
+        succeed, result = test_proxy.run(['--test', name])
         if succeed:
             print('OK')
         else:
-            failures.append( (name, result) )
+            failures.append((name, result))
             print('FAILED')
     failed_count = len(failures)
     pass_count = len(test_names) - failed_count
@@ -53,8 +53,7 @@
         print()
         for name, result in failures:
             print(result)
-        print('%d/%d tests passed (%d failure(s))' % (
-            pass_count, len(test_names), failed_count))
+        print('%d/%d tests passed (%d failure(s))' % (            pass_count, len(test_names), failed_count))
         return 1
     else:
         print('All %d tests passed' % len(test_names))
@@ -62,7 +61,7 @@
 
 def main():
     from optparse import OptionParser
-    parser = OptionParser( usage="%prog [options] <path to test_lib_json.exe>" )
+    parser = OptionParser(usage="%prog [options] <path to test_lib_json.exe>")
     parser.add_option("--valgrind",
                   action="store_true", dest="valgrind", default=False,
                   help="run all the tests using valgrind to detect memory leaks")
@@ -70,11 +69,11 @@
     options, args = parser.parse_args()
 
     if len(args) != 1:
-        parser.error( 'Must provides at least path to test_lib_json executable.' )
-        sys.exit( 1 )
+        parser.error('Must provides at least path to test_lib_json executable.')
+        sys.exit(1)
 
-    exit_code = runAllTests( args[0], use_valgrind=options.valgrind )
-    sys.exit( exit_code )
+    exit_code = runAllTests(args[0], use_valgrind=options.valgrind)
+    sys.exit(exit_code)
 
 if __name__ == '__main__':
     main()