add `Random.__init__`

src/modules/random.c

@@ -147,6 +147,21 @@ static bool Random__new__(int argc, py_Ref argv) {
     return TypeError("Random(): expected 0 or 1 arguments, got %d", argc - 1);
 }
 
+static bool Random__init__(int argc, py_Ref argv) {
+    if(argc == 1) {
+        // do nothing
+    } else if(argc == 2) {
+        mt19937* ud = py_touserdata(py_arg(0));
+        PY_CHECK_ARG_TYPE(1, tp_int);
+        py_i64 seed = py_toint(py_arg(1));
+        mt19937__seed(ud, (uint32_t)seed);
+    } else {
+        return TypeError("Random(): expected 1 or 2 arguments, got %d");
+    }
+    py_newnone(py_retval());
+    return true;
+}
+
 static bool Random_seed(int argc, py_Ref argv) {
     PY_CHECK_ARGC(2);
     PY_CHECK_ARG_TYPE(1, tp_int);
@@ -278,6 +293,7 @@ void pk__add_module_random() {
     py_Type type = py_newtype("Random", tp_object, mod, NULL);
 
     py_bindmagic(type, __new__, Random__new__);
+    py_bindmagic(type, __init__, Random__init__);
     py_bindmethod(type, "seed", Random_seed);
     py_bindmethod(type, "random", Random_random);
     py_bindmethod(type, "uniform", Random_uniform);

tests/70_random.py

@@ -66,4 +66,7 @@ assert (a, b, c) == (16, -418020281577586157, 76)
 seed(7)
 assert a == randint(1, 100)
 assert b == randint(-2**60, 1)
-assert c == randint(50, 100)
+assert c == randint(50, 100)
+
+import random
+assert random.Random(7).randint(1, 100) == a