Raise NotImplementedError for contextvars for Python < 3.7

Author: 1st1

tests/test_context.py

@@ -125,13 +125,16 @@ def test_context_arg(self):
         def cb():
             pass
 
-        with self.assertRaisesRegex(RuntimeError, 'requires Python 3.7'):
+        with self.assertRaisesRegex(NotImplementedError,
+                                    'requires Python 3.7'):
             self.loop.call_soon(cb, context=1)
 
-        with self.assertRaisesRegex(RuntimeError, 'requires Python 3.7'):
+        with self.assertRaisesRegex(NotImplementedError,
+                                    'requires Python 3.7'):
             self.loop.call_soon_threadsafe(cb, context=1)
 
-        with self.assertRaisesRegex(RuntimeError, 'requires Python 3.7'):
+        with self.assertRaisesRegex(NotImplementedError,
+                                    'requires Python 3.7'):
             self.loop.call_later(0.1, cb, context=1)
 
 

uvloop/cbhandles.pyx

@@ -21,7 +21,8 @@ cdef class Handle:
             self.context = context
         else:
             if context is not None:
-                raise RuntimeError('"context" argument requires Python 3.7')
+                raise NotImplementedError(
+                    '"context" argument requires Python 3.7')
             self.context = None
 
     def __dealloc__(self):
@@ -182,7 +183,8 @@ cdef class TimerHandle:
             self.context = context
         else:
             if context is not None:
-                raise RuntimeError('"context" argument requires Python 3.7')
+                raise NotImplementedError(
+                    '"context" argument requires Python 3.7')
             self.context = None
 
         if loop._debug: