Add hashlib hasher repr (#5833)

youknowone · web-flow · commit 6a992d4fa2ef · 2025-06-24T20:09:24.000+09:00
diff --git a/Lib/test/test_hashlib.py b/Lib/test/test_hashlib.py
@@ -456,8 +456,6 @@ def check_blocksize_name(self, name, block_size=0, digest_size=0,
             # split for sha3_512 / _sha3.sha3 object
             self.assertIn(name.split("_")[0], repr(m))
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_blocksize_name(self):
         self.check_blocksize_name('md5', 64, 16)
         self.check_blocksize_name('sha1', 64, 20)
@@ -500,8 +498,6 @@ def test_extra_sha3(self):
         self.check_sha3('shake_128', 256, 1344, b'\x1f')
         self.check_sha3('shake_256', 512, 1088, b'\x1f')
 
-    # TODO: RUSTPYTHON implement all blake2 params
-    @unittest.expectedFailure
     @requires_blake2
     def test_blocksize_name_blake2(self):
         self.check_blocksize_name('blake2b', 128, 64)
diff --git a/stdlib/src/hashlib.rs b/stdlib/src/hashlib.rs
@@ -6,11 +6,12 @@ pub(crate) use _hashlib::make_module;
 pub mod _hashlib {
     use crate::common::lock::PyRwLock;
     use crate::vm::{
-        PyObjectRef, PyPayload, PyResult, VirtualMachine,
+        Py, PyObjectRef, PyPayload, PyResult, VirtualMachine,
         builtins::{PyBytes, PyStrRef, PyTypeRef},
         convert::ToPyObject,
         function::{ArgBytesLike, ArgStrOrBytesLike, FuncArgs, OptionalArg},
         protocol::PyBuffer,
+        types::Representable,
     };
     use blake2::{Blake2b512, Blake2s256};
     use digest::{DynDigest, core_api::BlockSizeUser};
@@ -96,7 +97,7 @@ pub mod _hashlib {
         }
     }
 
-    #[pyclass]
+    #[pyclass(with(Representable))]
     impl PyHasher {
         fn new(name: &str, d: HashWrapper) -> Self {
             PyHasher {
@@ -146,6 +147,15 @@ pub mod _hashlib {
         }
     }
 
+    impl Representable for PyHasher {
+        fn repr_str(zelf: &Py<Self>, _vm: &VirtualMachine) -> PyResult<String> {
+            Ok(format!(
+                "<{} _hashlib.HASH object @ {:#x}>",
+                zelf.name, zelf as *const _ as usize
+            ))
+        }
+    }
+
     #[pyattr]
     #[pyclass(module = "_hashlib", name = "HASHXOF")]
     #[derive(PyPayload)]
