[Pylint] adding in TypeError to exception for next() if type cant be …

…inferred (#3843)

* adding in TypeError to exception for next() if type cant be inferred

* update version

* fix paging test

* pass -> return so that on exceptions we dont throw a warning

* fixing merge conflict

* spacing:

* spacing

tools/pylint-extensions/pylint-guidelines-checker/pylint_guidelines_checker.py

@@ -890,17 +890,17 @@ def visit_return(self, node):
                     paging_class = False
 
                     try:
-                        if "def by_page" in next(node.value.infer()).as_string():
+                        if any(v for v in node.value.infer() if "def by_page" in v.as_string()):
                             paging_class = True
-                    except (astroid.exceptions.InferenceError, AttributeError): # astroid can't always infer the return
+                    except (astroid.exceptions.InferenceError, AttributeError, TypeError): # astroid can't always infer the return
                         logger.debug("Pylint custom checker failed to check if client list method uses core paging.")
-                        pass
+                        return 
 
                     if not paging_class:
                         self.add_message(
                             msgid="client-list-methods-use-paging", node=node.parent, confidence=None
                         )
-        except AttributeError:
+        except (AttributeError, TypeError):
             logger.debug("Pylint custom checker failed to check if client list method uses core paging.")
             pass
 

tools/pylint-extensions/pylint-guidelines-checker/setup.py

@@ -2,7 +2,7 @@
 
 setup(
     name="pylint-guidelines-checker",
-    version="0.0.6",
+    version="0.0.7",
     url='http://github.com/Azure/azure-sdk-for-python',
     license='MIT License',
     description="A pylint plugin which enforces azure sdk guidelines.",

tools/pylint-extensions/pylint-guidelines-checker/tests/test_pylint_custom_plugins.py

@@ -1944,21 +1944,21 @@ def list_thing2(self): #@
     def test_finds_method_returning_something_else_async(self):
         class_node, function_node_a, function_node_b = astroid.extract_node("""
         from azure.core.polling import LROPoller
+        from typing import list
         
         class SomeClient(): #@
             async def list_thing(self, **kwargs): #@
                 return list()
             async def list_thing2(self, **kwargs): #@
-                from azure.core.polling import LROPoller
                 return LROPoller()
         """)
 
         with self.assertAddsMessages(
             pylint.testutils.MessageTest(
-                msg_id="client-list-methods-use-paging", line=5, node=function_node_a, col_offset=4, end_line=5, end_col_offset=24
+                msg_id="client-list-methods-use-paging", line=6, node=function_node_a, col_offset=4, end_line=6, end_col_offset=24
             ),
             pylint.testutils.MessageTest(
-                msg_id="client-list-methods-use-paging", line=7, node=function_node_b,  col_offset=4, end_line=7, end_col_offset=25
+                msg_id="client-list-methods-use-paging", line=8, node=function_node_b,  col_offset=4, end_line=8, end_col_offset=25
             ),
         ):
             self.checker.visit_return(function_node_a.body[0])
@@ -2592,7 +2592,7 @@ async def function_foo(x, y, z):
                     This is Example content.
                     Should support multi-line.
                     Can also include file:
-
+                      
                     .. literalinclude:: ../samples/sample_detect_language.py
                 '''
             """