gh-111201: A new Python REPL (GH-111567)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Marta Gómez Macías <mgmacias@google.com>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

4 files changed, 36 insertions, 3 deletions

diff --git a/Python/clinic/sysmodule.c.h b/Python/clinic/sysmodule.c.h
index 0a8704c..56a831e 100644
--- a/Python/clinic/sysmodule.c.h
+++ b/Python/clinic/sysmodule.c.h
@@ -1485,6 +1485,24 @@ exit:
     return return_value;
 }
 
+PyDoc_STRVAR(sys__baserepl__doc__,
+"_baserepl($module, /)\n"
+"--\n"
+"\n"
+"Private function for getting the base REPL");
+
+#define SYS__BASEREPL_METHODDEF    \
+    {"_baserepl", (PyCFunction)sys__baserepl, METH_NOARGS, sys__baserepl__doc__},
+
+static PyObject *
+sys__baserepl_impl(PyObject *module);
+
+static PyObject *
+sys__baserepl(PyObject *module, PyObject *Py_UNUSED(ignored))
+{
+    return sys__baserepl_impl(module);
+}
+
 PyDoc_STRVAR(sys__is_gil_enabled__doc__,
 "_is_gil_enabled($module, /)\n"
 "--\n"
@@ -1556,4 +1574,4 @@ exit:
 #ifndef SYS_GETANDROIDAPILEVEL_METHODDEF
     #define SYS_GETANDROIDAPILEVEL_METHODDEF
 #endif /* !defined(SYS_GETANDROIDAPILEVEL_METHODDEF) */
-/*[clinic end generated code: output=352ac7a0085e8a1f input=a9049054013a1b77]*/
+/*[clinic end generated code: output=ef7c35945443d300 input=a9049054013a1b77]*/
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 31213ae..ce7f194 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -83,8 +83,6 @@ _PyRun_AnyFileObject(FILE *fp, PyObject *filename, int closeit,
     return res;
 }
 
-
-/* Parse input from a file and execute it */
 int
 PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit,
                      PyCompilerFlags *flags)
diff --git a/Python/stdlib_module_names.h b/Python/stdlib_module_names.h
index ba32084..9686d10 100644
--- a/Python/stdlib_module_names.h
+++ b/Python/stdlib_module_names.h
@@ -65,6 +65,7 @@ static const char* _Py_stdlib_module_names[] = {
 "_pydecimal",
 "_pyio",
 "_pylong",
+"_pyrepl",
 "_queue",
 "_random",
 "_scproxy",
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 17c4a5f..69bee32 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -2396,6 +2396,21 @@ sys__get_cpu_count_config_impl(PyObject *module)
 }
 
 /*[clinic input]
+sys._baserepl
+
+Private function for getting the base REPL
+[clinic start generated code]*/
+
+static PyObject *
+sys__baserepl_impl(PyObject *module)
+/*[clinic end generated code: output=f19a36375ebe0a45 input=ade0ebb9fab56f3c]*/
+{
+    PyCompilerFlags cf = _PyCompilerFlags_INIT;
+    PyRun_AnyFileExFlags(stdin, "<stdin>", 0, &cf);
+    Py_RETURN_NONE;
+}
+
+/*[clinic input]
 sys._is_gil_enabled -> bool
 
 Return True if the GIL is currently enabled and False otherwise.
@@ -2579,6 +2594,7 @@ static PyMethodDef sys_methods[] = {
     SYS_UNRAISABLEHOOK_METHODDEF
     SYS_GET_INT_MAX_STR_DIGITS_METHODDEF
     SYS_SET_INT_MAX_STR_DIGITS_METHODDEF
+    SYS__BASEREPL_METHODDEF
 #ifdef Py_STATS
     SYS__STATS_ON_METHODDEF
     SYS__STATS_OFF_METHODDEF