feat: add version string

pyproject.toml

@@ -1,7 +1,3 @@
-[build-system]
-requires = ["setuptools>=43"]
-build-backend = "setuptools.build_meta"
-
 [project]
 name = "tree-sitter"
 version = "0.25.1"
@@ -34,13 +30,17 @@ email = "[email protected]"
 [project.optional-dependencies]
 docs = ["sphinx~=8.1", "sphinx-book-theme"]
 tests = [
-    "tree-sitter-html>=0.23.2",
-    "tree-sitter-javascript>=0.23.1",
-    "tree-sitter-json>=0.24.8",
-    "tree-sitter-python>=0.23.6",
-    "tree-sitter-rust>=0.23.2",
+    "tree-sitter-html==0.23.2",
+    "tree-sitter-javascript==0.25.0",
+    "tree-sitter-json==0.24.8",
+    "tree-sitter-python==0.25.0",
+    "tree-sitter-rust==0.24.0",
 ]
 
+[build-system]
+requires = ["setuptools>=43"]
+build-backend = "setuptools.build_meta"
+
 [tool.ruff]
 target-version = "py310"
 line-length = 100

setup.py

@@ -3,6 +3,11 @@
 from setuptools import Extension, setup  # type: ignore
 from setuptools.command.build_ext import build_ext
 
+with open("pyproject.toml") as f:
+    next(f)  # skip [project]
+    next(f)  # skip name = "tree-sitter"
+    version = next(f).replace("version = ", "", 1)
+
 
 class BuildExt(build_ext):
     def build_extension(self, ext: Extension):
@@ -57,6 +62,7 @@ def build_extension(self, ext: Extension):
                 ("_DEFAULT_SOURCE", None),
                 ("PY_SSIZE_T_CLEAN", None),
                 ("TREE_SITTER_HIDE_SYMBOLS", None),
+                ("PY_TS_VERSION", version),
             ],
         )
     ],

tree_sitter/__init__.pyi

@@ -414,3 +414,5 @@ class Range:
 LANGUAGE_VERSION: Final[int]
 
 MIN_COMPATIBLE_LANGUAGE_VERSION: Final[int]
+
+__version__: Final[str]

tree_sitter/binding/module.c

@@ -158,6 +158,8 @@ PyMODINIT_FUNC PyInit__binding(void) {
     PyModule_AddIntConstant(module, "MIN_COMPATIBLE_LANGUAGE_VERSION",
                             TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION);
 
+    PyModule_AddStringConstant(module, "__version__", PY_TS_VERSION);
+
 #ifdef Py_GIL_DISABLED
     PyUnstable_Module_SetGIL(module, Py_MOD_GIL_USED);
 #endif