Fix export of package version (#386)

jupyter_core/__init__.py

@@ -0,0 +1,3 @@
+from __future__ import annotations
+
+from .version import __version__, version_info  # noqa: F401

pyproject.toml

@@ -185,10 +185,9 @@ ignore = [
   "RUF012"  # Mutable class attributes should be annotated
 ]
 unfixable = [
-  # Don't touch print statements
-  "T201",
-  # Don't touch noqa lines
-  "RUF100",
+  "T201", # Don't touch print statements
+  "RUF100", # Don't touch noqa lines
+  "F401"  # Unused imports
 ]
 isort.required-imports = ["from __future__ import annotations"]
 

tests/test_command.py

@@ -10,6 +10,7 @@
 
 import pytest
 
+from jupyter_core import __version__
 from jupyter_core.command import list_subcommands
 from jupyter_core.paths import (
     jupyter_config_dir,
@@ -248,3 +249,7 @@ def test_argv0(tmpdir):
 
     # Make sure the first argv is the full path to the executing script
     assert f"{jupyter}-witness".encode() in out
+
+
+def test_version():
+    assert isinstance(__version__, str)