From 04b3a01b712e263dc1eecb9dfab08c3c9a15cf24 Mon Sep 17 00:00:00 2001
From: Miro <200482516+Mirochill@users.noreply.github.com>
Date: Mon, 25 May 2026 21:56:54 +0200
Subject: [PATCH] Avoid VTE preexec prompt markers

---
 bash_kernel/install.py | 2 +-
 bash_kernel/kernel.py  | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/bash_kernel/install.py b/bash_kernel/install.py
index 00bd86a..60af4d1 100644
--- a/bash_kernel/install.py
+++ b/bash_kernel/install.py
@@ -13,7 +13,7 @@
  "display_name":"Bash",
  "language":"bash",
  "codemirror_mode":"shell",
- "env":{"PS1": "$"}
+ "env":{"PS1": "$", "VTE_VERSION": ""}
 }
 
 def install_my_kernel_spec(user=True, prefix=None):
diff --git a/bash_kernel/kernel.py b/bash_kernel/kernel.py
index 3b9cf44..6ebc2f1 100644
--- a/bash_kernel/kernel.py
+++ b/bash_kernel/kernel.py
@@ -129,7 +129,9 @@ def _start_bash(self):
             # environment variable, but not when bash displays the prompt.
             ps1 = self.unique_prompt + u'\[\]' + ">"
             ps2 = self.unique_prompt + u'\[\]' + "+"
-            prompt_change = u"PS1='{0}' PS2='{1}' PROMPT_COMMAND=''".format(ps1, ps2)
+            prompt_change = (
+                u"PS1='{0}' PS2='{1}' PS0='' PROMPT_COMMAND=''"
+            ).format(ps1, ps2)
             # Using IREPLWrapper to get incremental output
             self.bashwrapper = IREPLWrapper(child, u'\$', prompt_change, self.unique_prompt,
                                             extra_init_cmd="export PAGER=cat",