Export DumpError, LoadError

These are custom exception that are raised by the public `dumps`/`loads`
methods. They are used by pytest-xdist which currently imports them from
`execnet.gateway_base`.

Author: bluetech

CHANGELOG.rst

@@ -15,8 +15,8 @@
   Also fixed ``init_popen_io`` to use ``closefd=False`` for shared stdin and stdout file
   descriptors, preventing ``Bad file descriptor`` errors triggered by test_stdouterrin_setnull.
 * The library is now typed and the typing is exposed to type-checkers.
-* Re-exported ``Gateway`` and ``Channel`` from ``execnet``. The constructors
-  are private.
+* Re-exported ``Gateway``, ``Channel``, ``DumpError`` and ``LoadError`` from
+  ``execnet``. The constructors are private.
 * Fixed ``GatewayBase.join()`` timeout argument getting ignored.
 * Removed support for Python 3.7.
 * Added official support for Python 3.12.

src/execnet/__init__.py

@@ -11,6 +11,8 @@
 from .gateway import Gateway
 from .gateway_base import Channel
 from .gateway_base import DataFormatError
+from .gateway_base import DumpError
+from .gateway_base import LoadError
 from .gateway_base import RemoteError
 from .gateway_base import TimeoutError
 from .gateway_base import dump
@@ -41,8 +43,10 @@
     "default_group",
     "Channel",
     "dumps",
+    "dump",
+    "DumpError",
     "loads",
     "load",
-    "dump",
+    "LoadError",
     "DataFormatError",
 ]