Add brain to fix tensorflow import errors.

astroid/brain/brain_tensorflow.py

@@ -0,0 +1,14 @@
+"""Astroid hooks for understanding tensorflow's imports."""
+from astroid import MANAGER
+from astroid.exceptions import AstroidBuildingError
+
+
+def _tensorflow_fail_hook(modname: str):
+    parts = modname.split(".", 1)
+    if parts[0] == "tensorflow":
+        parts[0] = "tensorflow.python"
+        return MANAGER.ast_from_module_name(".".join(parts))
+    raise AstroidBuildingError(modname=modname)
+
+
+MANAGER.register_failed_import_hook(_tensorflow_fail_hook)