Issue #4113: Added custom __repr__ method to functools.partial.
diff --git a/Modules/_functoolsmodule.c b/Modules/_functoolsmodule.c
index 3437353..bb2f37b 100644
--- a/Modules/_functoolsmodule.c
+++ b/Modules/_functoolsmodule.c
@@ -196,6 +196,48 @@
{NULL} /* Sentinel */
};
+static PyObject *
+partial_repr(partialobject *pto)
+{
+ PyObject *result;
+ PyObject *arglist;
+ PyObject *tmp;
+ Py_ssize_t i, n;
+
+ arglist = PyUnicode_FromString("");
+ if (arglist == NULL) {
+ return NULL;
+ }
+ /* Pack positional arguments */
+ assert (PyTuple_Check(pto->args));
+ n = PyTuple_GET_SIZE(pto->args);
+ for (i = 0; i < n; i++) {
+ tmp = PyUnicode_FromFormat("%U, %R", arglist,
+ PyTuple_GET_ITEM(pto->args, i));
+ Py_DECREF(arglist);
+ if (tmp == NULL)
+ return NULL;
+ arglist = tmp;
+ }
+ /* Pack keyword arguments */
+ assert (pto->kw == Py_None || PyDict_Check(pto->kw));
+ if (pto->kw != Py_None) {
+ PyObject *key, *value;
+ for (i = 0; PyDict_Next(pto->kw, &i, &key, &value);) {
+ tmp = PyUnicode_FromFormat("%U, %U=%R", arglist,
+ key, value);
+ Py_DECREF(arglist);
+ if (tmp == NULL)
+ return NULL;
+ arglist = tmp;
+ }
+ }
+ result = PyUnicode_FromFormat("%s(%R%U)", Py_TYPE(pto)->tp_name,
+ pto->fn, arglist);
+ Py_DECREF(arglist);
+ return result;
+}
+
/* Pickle strategy:
__reduce__ by itself doesn't support getting kwargs in the unpickle
operation so we define a __setstate__ that replaces all the information
@@ -254,7 +296,7 @@
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
- 0, /* tp_repr */
+ (reprfunc)partial_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */