add utils file

Author: blink1073

jupyter_console/utils.py

@@ -0,0 +1,25 @@
+import inspect
+import typing as t
+from jupyter_core.utils import run_sync as _run_sync
+
+
+T = t.TypeVar("T")
+
+
+def run_sync(coro: t.Callable[..., t.Union[T, t.Awaitable[T]]]) -> t.Callable[..., T]:
+    """Wraps coroutine in a function that blocks until it has executed.
+
+    Parameters
+    ----------
+    coro : coroutine-function
+        The coroutine-function to be executed.
+
+    Returns
+    -------
+    result :
+        Whatever the coroutine-function returns.
+    """
+    if not inspect.iscoroutinefunction(coro):
+        return t.cast(t.Callable[..., T], coro)
+    return _run_sync(coro)
+