Various changes.

[python_utils.git] / exec_utils.py

diff --git a/exec_utils.py b/exec_utils.py
index 0ed360191d6ad9f89c64acf591f78044008f4009..1b587405fb1a706a1d7b1c128fde2ad878401137 100644 (file)
--- a/exec_utils.py
+++ b/exec_utils.py
@@ -2,10 +2,10 @@
 
 import shlex
 import subprocess
-from typing import List
+from typing import List, Optional
 
 
-def cmd_with_timeout(command: str, timeout_seconds: float) -> int:
+def cmd_with_timeout(command: str, timeout_seconds: Optional[float]) -> int:
     return subprocess.check_call(
         ["/bin/bash", "-c", command], timeout=timeout_seconds
     )
@@ -25,12 +25,14 @@ def run_silently(command: str) -> None:
     """Run a command silently but raise subprocess.CalledProcessError if
     it fails."""
     subprocess.run(
-        command, shell=True, stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
-        capture_output=False, check=True
+        command, shell=True, stderr=subprocess.DEVNULL,
+        stdout=subprocess.DEVNULL, capture_output=False, check=True
     )
 
 
-def cmd_in_background(command: str, *, silent: bool = False) -> subprocess.Popen:
+def cmd_in_background(
+        command: str, *, silent: bool = False
+) -> subprocess.Popen:
     args = shlex.split(command)
     if silent:
         return subprocess.Popen(args,