From 02635398719e8013e58688f68fda828923df9494 Mon Sep 17 00:00:00 2001
From: cindytsai <turquoisea.tsai@gmail.com>
Date: Mon, 26 Aug 2024 12:20:57 -0500
Subject: [PATCH] Clear the error buffer before redirecting stderr.

I just noticed this bug if the env doesn't have jedi installed.
---
 src/libyt_python_shell.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/libyt_python_shell.cpp b/src/libyt_python_shell.cpp
index d3ed426b..d5e03e74 100644
--- a/src/libyt_python_shell.cpp
+++ b/src/libyt_python_shell.cpp
@@ -469,8 +469,12 @@ CodeValidity LibytPythonShell::check_code_validity(const std::string& code, bool
 
     CodeValidity code_validity;
 
-    PyRun_SimpleString("import sys, io\n");
-    PyRun_SimpleString("sys.OUTPUT_STDERR=''\nstderr_buf=io.StringIO()\nsys.stderr=stderr_buf\n");
+    // clear error buffer before redirecting stderr
+    PyErr_Clear();
+    PyRun_SimpleString("import sys, io");
+    PyRun_SimpleString("sys.OUTPUT_STDERR=''");
+    PyRun_SimpleString("stderr_buf=io.StringIO()");
+    PyRun_SimpleString("sys.stderr=stderr_buf");
 
     PyObject* py_test_compile;
     if (prompt_env) {