fix blank print for python2

check_bento_build.py

@@ -62,7 +62,7 @@ def remove_common_extensions(cy_bento, cy_setup):
 
 def print_results(cy_bento, cy_setup):
     def info(text):
-        print()
+        print('')
         print(text)
         print('-' * len(text))
 

doc/gh-pages.py

@@ -129,6 +129,6 @@ if __name__ == '__main__':
     finally:
         cd(startdir)
 
-    print()
+    print('')
     print('Now verify the build in: %r' % dest)
     print("If everything looks good, run 'git push' inside doc/gh-pages.")

doc/source/coverage_generator.py

@@ -257,7 +257,7 @@ if __name__ == "__main__":
             print("  Usage: coverage_generator.py [csv] [output]")
             print("    csv - Path to csv file, defaults to ./coverage.csv")
             print("    output - Ouput path, defaults to ./coverage_table.txt")
-            print()
+            print('')
             sys.exit(0)
         if len(sys.argv) == 2:
             csv_path = os.path.abspath(sys.argv[1])