[algorithms][migration] Fix print statement

beat/web/algorithms/migrations/0004_algorithm_type.py

@@ -20,7 +20,7 @@ def determine_types(apps, schema_editor):
         print("Determining type of algorithm '%s/%s/%d'..." % \
                 (algorithm.author.username, algorithm.name, algorithm.version))
 
-        print algorithm.declaration_file.path
+        print(algorithm.declaration_file.path)
 
         with open(algorithm.declaration_file.path, 'r') as f:
             declaration = simplejson.load(f)