Add a new script to generate builtin module names (#12696)

crates/ruff_python_stdlib/src/sys/builtin_modules.rs

@@ -0,0 +1,55 @@
+//! This file is generated by `scripts/generate_builtin_modules.py`
+
+/// Return `true` if `module` is a [builtin module] on the given
+/// Python 3 version.
+///
+/// "Builtin modules" are modules that are compiled directly into the
+/// Python interpreter. These can never be shadowed by first-party
+/// modules; the normal rules of module resolution do not apply to these
+/// modules.
+///
+/// [builtin module]: https://docs.python.org/3/library/sys.html#sys.builtin_module_names
+#[allow(clippy::unnested_or_patterns)]
+pub fn is_builtin_module(minor_version: u8, module: &str) -> bool {
+    matches!(
+        (minor_version, module),
+        (
+            _,
+            "_abc"
+                | "_ast"
+                | "_codecs"
+                | "_collections"
+                | "_functools"
+                | "_imp"
+                | "_io"
+                | "_locale"
+                | "_operator"
+                | "_signal"
+                | "_sre"
+                | "_stat"
+                | "_string"
+                | "_symtable"
+                | "_thread"
+                | "_tracemalloc"
+                | "_warnings"
+                | "_weakref"
+                | "atexit"
+                | "builtins"
+                | "errno"
+                | "faulthandler"
+                | "gc"
+                | "itertools"
+                | "marshal"
+                | "posix"
+                | "pwd"
+                | "sys"
+                | "time"
+        ) | (7, "xxsubtype" | "zipimport")
+            | (8, "xxsubtype")
+            | (9, "_peg_parser" | "xxsubtype")
+            | (10, "xxsubtype")
+            | (11, "_tokenize" | "xxsubtype")
+            | (12, "_tokenize" | "_typing")
+            | (13, "_suggestions" | "_sysconfig" | "_tokenize" | "_typing")
+    )
+}

crates/ruff_python_stdlib/src/sys/mod.rs

@@ -0,0 +1,5 @@
+mod builtin_modules;
+mod known_stdlib;
+
+pub use builtin_modules::is_builtin_module;
+pub use known_stdlib::is_known_standard_library;