1 files changed, 39 insertions, 7 deletions

diff --git a/Modules/_io/clinic/iobase.c.h b/Modules/_io/clinic/iobase.c.h
index 68eaadd..a5c8eea 100644
--- a/Modules/_io/clinic/iobase.c.h
+++ b/Modules/_io/clinic/iobase.c.h
@@ -185,10 +185,16 @@ _io__IOBase_readline(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
     PyObject *return_value = NULL;
     Py_ssize_t limit = -1;
 
-    if (!_PyArg_ParseStack(args, nargs, "|O&:readline",
-        _Py_convert_optional_to_ssize_t, &limit)) {
+    if (!_PyArg_CheckPositional("readline", nargs, 0, 1)) {
         goto exit;
     }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_Py_convert_optional_to_ssize_t(args[0], &limit)) {
+        goto exit;
+    }
+skip_optional:
     return_value = _io__IOBase_readline_impl(self, limit);
 
 exit:
@@ -217,10 +223,16 @@ _io__IOBase_readlines(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
     PyObject *return_value = NULL;
     Py_ssize_t hint = -1;
 
-    if (!_PyArg_ParseStack(args, nargs, "|O&:readlines",
-        _Py_convert_optional_to_ssize_t, &hint)) {
+    if (!_PyArg_CheckPositional("readlines", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_Py_convert_optional_to_ssize_t(args[0], &hint)) {
         goto exit;
     }
+skip_optional:
     return_value = _io__IOBase_readlines_impl(self, hint);
 
 exit:
@@ -252,10 +264,30 @@ _io__RawIOBase_read(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
     PyObject *return_value = NULL;
     Py_ssize_t n = -1;
 
-    if (!_PyArg_ParseStack(args, nargs, "|n:read",
-        &n)) {
+    if (!_PyArg_CheckPositional("read", nargs, 0, 1)) {
         goto exit;
     }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (PyFloat_Check(args[0])) {
+        PyErr_SetString(PyExc_TypeError,
+                        "integer argument expected, got float" );
+        goto exit;
+    }
+    {
+        Py_ssize_t ival = -1;
+        PyObject *iobj = PyNumber_Index(args[0]);
+        if (iobj != NULL) {
+            ival = PyLong_AsSsize_t(iobj);
+            Py_DECREF(iobj);
+        }
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        n = ival;
+    }
+skip_optional:
     return_value = _io__RawIOBase_read_impl(self, n);
 
 exit:
@@ -279,4 +311,4 @@ _io__RawIOBase_readall(PyObject *self, PyObject *Py_UNUSED(ignored))
 {
     return _io__RawIOBase_readall_impl(self);
 }
-/*[clinic end generated code: output=cde4b0e96a4e69e3 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=60e43a7cbd9f314e input=a9049054013a1b77]*/