Remove Python 3.4 support (#3147)

Closes #3123

stdlib/3/asyncio/__init__.pyi

@@ -84,14 +84,11 @@ from asyncio.locks import (
     BoundedSemaphore as BoundedSemaphore,
 )
 
-if sys.version_info < (3, 5):
-    from asyncio.queues import JoinableQueue as JoinableQueue
-else:
-    from asyncio.futures import isfuture as isfuture
-    from asyncio.events import (
-        _set_running_loop as _set_running_loop,
-        _get_running_loop as _get_running_loop,
-    )
+from asyncio.futures import isfuture as isfuture
+from asyncio.events import (
+    _set_running_loop as _set_running_loop,
+    _get_running_loop as _get_running_loop,
+)
 if sys.platform != 'win32':
     from asyncio.streams import (
         open_unix_connection as open_unix_connection,

stdlib/3/asyncio/base_events.pyi

@@ -39,8 +39,7 @@ class BaseEventLoop(AbstractEventLoop):
     def call_at(self, when: float, callback: Callable[..., Any], *args: Any) -> TimerHandle: ...
     def time(self) -> float: ...
     # Future methods
-    if sys.version_info >= (3, 5):
-        def create_future(self) -> Future[Any]: ...
+    def create_future(self) -> Future[Any]: ...
     # Tasks methods
     def create_task(self, coro: Union[Awaitable[_T], Generator[Any, None, _T]]) -> Task[_T]: ...
     def set_task_factory(self, factory: Optional[Callable[[AbstractEventLoop, Generator[Any, None, _T]], Future[_T]]]) -> None: ...
@@ -131,8 +130,7 @@ class BaseEventLoop(AbstractEventLoop):
     def remove_signal_handler(self, sig: int) -> None: ...
     # Error handlers.
     def set_exception_handler(self, handler: Optional[_ExceptionHandler]) -> None: ...
-    if sys.version_info >= (3, 5):
-        def get_exception_handler(self) -> Optional[_ExceptionHandler]: ...
+    def get_exception_handler(self) -> Optional[_ExceptionHandler]: ...
     def default_exception_handler(self, context: _Context) -> None: ...
     def call_exception_handler(self, context: _Context) -> None: ...
     # Debug flag management.

stdlib/3/asyncio/events.pyi

@@ -73,9 +73,8 @@ class AbstractEventLoop(metaclass=ABCMeta):
     @abstractmethod
     def time(self) -> float: ...
     # Future methods
-    if sys.version_info >= (3, 5):
-        @abstractmethod
-        def create_future(self) -> Future[Any]: ...
+    @abstractmethod
+    def create_future(self) -> Future[Any]: ...
     # Tasks methods
     @abstractmethod
     def create_task(self, coro: Union[Awaitable[_T], Generator[Any, None, _T]]) -> Task[_T]: ...
@@ -197,9 +196,8 @@ class AbstractEventLoop(metaclass=ABCMeta):
     # Error handlers.
     @abstractmethod
     def set_exception_handler(self, handler: Optional[_ExceptionHandler]) -> None: ...
-    if sys.version_info >= (3, 5):
-        @abstractmethod
-        def get_exception_handler(self) -> Optional[_ExceptionHandler]: ...
+    @abstractmethod
+    def get_exception_handler(self) -> Optional[_ExceptionHandler]: ...
     @abstractmethod
     def default_exception_handler(self, context: _Context) -> None: ...
     @abstractmethod

stdlib/3/asyncio/futures.pyi

@@ -26,8 +26,7 @@ class _TracebackLogger:
     def clear(self) -> None: ...
     def __del__(self) -> None: ...
 
-if sys.version_info >= (3, 5):
-    def isfuture(obj: object) -> bool: ...
+def isfuture(obj: object) -> bool: ...
 
 class Future(Awaitable[_T], Iterable[_T]):
     _state: str

stdlib/3/asyncio/queues.pyi

@@ -42,9 +42,3 @@ class PriorityQueue(Queue[_T]): ...
 
 
 class LifoQueue(Queue[_T]): ...
-
-if sys.version_info < (3, 5):
-    class JoinableQueue(Queue[_T]):
-        def task_done(self) -> None: ...
-        @coroutine
-        def join(self) -> Generator[Any, None, bool]: ...