Fixed Flake8 issues

Author: syrusakbary

graphql/backend/base.py

@@ -3,7 +3,6 @@
 import six
 
 
-
 class GraphQLBackend(six.with_metaclass(ABCMeta)):
     @abstractmethod
     def document_from_string(self, schema, request_string):
@@ -27,6 +26,6 @@ def get_operations(self):
                 if definition.name:
                     operation_name = definition.name.value
                 else:
-                    operation_name =  None
+                    operation_name = None
                 operations[operation_name] = definition.operation
         return operations

graphql/backend/core.py

@@ -5,7 +5,6 @@
 from ..language.base import parse, print_ast
 from ..language import ast
 from ..validation import validate
-from ..error import GraphQLError
 
 from .base import GraphQLBackend, GraphQLDocument
 

graphql/backend/decider.py

@@ -14,7 +14,7 @@ def document_from_string(self, schema, request_string):
         for backend in self.backends:
             try:
                 return backend.document_from_string(schema, request_string)
-            except Exception as e:
+            except Exception:
                 continue
 
         raise Exception(

graphql/backend/quiver_cloud.py

@@ -1,6 +1,6 @@
 try:
     import requests
-except:
+except ImportError:
     raise ImportError(
         "requests package is required for Quiver Cloud backend.\n"
         "You can install it using: pip install requests"
@@ -38,7 +38,7 @@ def __init__(self, dsn, python_options=None, **options):
         super(GraphQLQuiverCloudBackend, self).__init__(**options)
         try:
             url = urlparse(dsn.strip())
-        except:
+        except Exception:
             raise Exception("Received wrong url {}".format(dsn))
 
         netloc = url.hostname
@@ -93,7 +93,10 @@ def document_from_string(self, schema, request_string):
         source = self.generate_source(schema, request_string)
         filename = "<document>"
         code = compile(source, filename, "exec")
-        uptodate = lambda: True
+
+        def uptodate():
+            return True
+
         document = GraphQLCompiledDocument.from_code(
             schema, code, uptodate, self.extra_namespace
         )

graphql/execution/base.py

@@ -40,7 +40,6 @@ def __eq__(self, other):
         )
 
 
-
 class ResolveInfo(object):
     __slots__ = ('field_name', 'field_asts', 'return_type', 'parent_type',
                  'schema', 'fragments', 'root_value', 'operation', 'variable_values', 'context', 'path')
@@ -58,3 +57,18 @@ def __init__(self, field_name, field_asts, return_type, parent_type,
         self.variable_values = variable_values
         self.context = context
         self.path = path
+
+
+__all__ = [
+    'ExecutionResult',
+    'ResolveInfo',
+    'ExecutionContext',
+    'SubscriberExecutionContext',
+    'get_operation_root_type',
+    'collect_fields',
+    'should_include_node',
+    'does_fragment_condition_match',
+    'get_field_entry_key',
+    'default_resolve_fn',
+    'get_field_def',
+]

graphql/graphql.py

@@ -1,8 +1,4 @@
-from .execution import ExecutionResult, execute
-from .language.ast import Document
-from .language.parser import parse
-from .language.source import Source
-from .validation import validate
+from .execution import ExecutionResult
 from .backend import get_default_backend
 
 from promise import promisify