Clear signal handlers when running processes

kitty/update_check.py

@@ -9,7 +9,9 @@ from typing import Dict, NamedTuple, Optional, Tuple
 from urllib.request import urlopen
 
 from .config import atomic_save
-from .constants import Version, cache_dir, kitty_exe, version, website_url
+from .constants import (
+    Version, cache_dir, clear_handled_signals, kitty_exe, version, website_url
+)
 from .fast_data_types import add_timer, get_boss, monitor_pid
 from .notify import notify
 from .utils import log_error, open_url
@@ -115,7 +117,7 @@ def update_check() -> bool:
         p = subprocess.Popen([
             kitty_exe(), '+runpy',
             'from kitty.update_check import run_worker; run_worker()'
-        ], stdout=subprocess.PIPE)
+        ], stdout=subprocess.PIPE, preexec_fn=clear_handled_signals)
     except OSError as e:
         log_error(f'Failed to run kitty for update check, with error: {e}')
         return False