Merge pull request #12 from graphql-python/schema-parser

Schema parser & printer

Closes #11

Author: jhgg

.travis.yml

@@ -8,7 +8,7 @@ python:
 - pypy
 cache: pip
 install:
-- pip install --cache-dir $HOME/.cache/pip pytest-cov coveralls flake8 import-order gevent==1.1b5
+- pip install --cache-dir $HOME/.cache/pip pytest-cov coveralls flake8 import-order gevent==1.1b5 six>=1.10.0
 - pip install --cache-dir $HOME/.cache/pip pytest>=2.7.3 --upgrade
 - pip install -e .
 script:

graphql/core/execution/executor.py

@@ -272,7 +272,7 @@ def complete_value(self, ctx, return_type, field_asts, info, result):
 
         if not runtime_type.is_type_of(result, info):
             raise GraphQLError(
-                u'Expected value of type "{}" but got {}.'.format(return_type, result),
+                u'Expected value of type "{}" but got {}.'.format(return_type, type(result).__name__),
                 field_asts
             )