ultralytics 8.1.37 fix empty sys.argv bug (#9390)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: Joshua Harrison <108553645+TurbineJoshua@users.noreply.github.com>
Co-authored-by: Joshua Harrison <joshua@fido.investments>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

tests/test_engine.py

@@ -1,5 +1,7 @@
 # Ultralytics YOLO 🚀, AGPL-3.0 license
 
+import sys
+from unittest import mock
 from ultralytics import YOLO
 from ultralytics.cfg import get_cfg
 from ultralytics.engine.exporter import Exporter
@@ -49,6 +51,8 @@ def test_detect():
     pred = detect.DetectionPredictor(overrides={"imgsz": [64, 64]})
     pred.add_callback("on_predict_start", test_func)
     assert test_func in pred.callbacks["on_predict_start"], "callback test failed"
+    # Confirm there is no issue with sys.argv being empty.
+    with mock.patch.object(sys, 'argv', []):
         result = pred(source=ASSETS, model=f"{MODEL}.pt")
         assert len(result), "predictor test failed"
 

ultralytics/__init__.py

@@ -1,6 +1,6 @@
 # Ultralytics YOLO 🚀, AGPL-3.0 license
 
-__version__ = "8.1.36"
+__version__ = "8.1.37"
 
 from ultralytics.data.explorer.explorer import Explorer
 from ultralytics.models import RTDETR, SAM, YOLO, YOLOWorld

ultralytics/cfg/__init__.py

@@ -54,8 +54,9 @@ TASK2METRIC = {
     "obb": "metrics/mAP50-95(B)",
 }
 
+ARGV = sys.argv or ["", ""]  # sometimes sys.argv = []
 CLI_HELP_MSG = f"""
-    Arguments received: {str(['yolo'] + sys.argv[1:])}. Ultralytics 'yolo' commands use the following syntax:
+    Arguments received: {str(['yolo'] + ARGV[1:])}. Ultralytics 'yolo' commands use the following syntax:
 
         yolo TASK MODE ARGS
 
@@ -452,7 +453,7 @@ def entrypoint(debug=""):
     It uses the package's default cfg and initializes it using the passed overrides.
     Then it calls the CLI function with the composed cfg
     """
-    args = (debug.split(" ") if debug else sys.argv)[1:]
+    args = (debug.split(" ") if debug else ARGV)[1:]
     if not args:  # no arguments passed
         LOGGER.info(CLI_HELP_MSG)
         return

ultralytics/engine/model.py

@@ -1,7 +1,6 @@
 # Ultralytics YOLO 🚀, AGPL-3.0 license
 
 import inspect
-import sys
 from pathlib import Path
 from typing import Union
 
@@ -11,7 +10,18 @@ import torch
 from ultralytics.cfg import TASK2DATA, get_cfg, get_save_dir
 from ultralytics.hub.utils import HUB_WEB_ROOT
 from ultralytics.nn.tasks import attempt_load_one_weight, guess_model_task, nn, yaml_model_load
-from ultralytics.utils import ASSETS, DEFAULT_CFG_DICT, LOGGER, RANK, SETTINGS, callbacks, checks, emojis, yaml_load
+from ultralytics.utils import (
+    ARGV,
+    ASSETS,
+    DEFAULT_CFG_DICT,
+    LOGGER,
+    RANK,
+    SETTINGS,
+    callbacks,
+    checks,
+    emojis,
+    yaml_load,
+)
 
 
 class Model(nn.Module):
@@ -421,8 +431,8 @@ class Model(nn.Module):
             source = ASSETS
             LOGGER.warning(f"WARNING ⚠️ 'source' is missing. Using 'source={source}'.")
 
-        is_cli = (sys.argv[0].endswith("yolo") or sys.argv[0].endswith("ultralytics")) and any(
-            x in sys.argv for x in ("predict", "track", "mode=predict", "mode=track")
+        is_cli = (ARGV[0].endswith("yolo") or ARGV[0].endswith("ultralytics")) and any(
+            x in ARGV for x in ("predict", "track", "mode=predict", "mode=track")
         )
 
         custom = {"conf": 0.25, "batch": 1, "save": is_cli, "mode": "predict"}  # method defaults

ultralytics/hub/utils.py

@@ -3,7 +3,6 @@
 import os
 import platform
 import random
-import sys
 import threading
 import time
 from pathlib import Path
@@ -11,6 +10,7 @@ from pathlib import Path
 import requests
 
 from ultralytics.utils import (
+    ARGV,
     ENVIRONMENT,
     LOGGER,
     ONLINE,
@@ -188,7 +188,7 @@ class Events:
         self.rate_limit = 60.0  # rate limit (seconds)
         self.t = 0.0  # rate limit timer (seconds)
         self.metadata = {
-            "cli": Path(sys.argv[0]).name == "yolo",
+            "cli": Path(ARGV[0]).name == "yolo",
             "install": "git" if is_git_dir() else "pip" if is_pip_package() else "other",
             "python": ".".join(platform.python_version_tuple()[:2]),  # i.e. 3.10
             "version": __version__,

ultralytics/utils/__init__.py

@@ -30,6 +30,7 @@ RANK = int(os.getenv("RANK", -1))
 LOCAL_RANK = int(os.getenv("LOCAL_RANK", -1))  # https://pytorch.org/docs/stable/elastic/run.html
 
 # Other Constants
+ARGV = sys.argv or ["", ""]  # sometimes sys.argv = []
 FILE = Path(__file__).resolve()
 ROOT = FILE.parents[1]  # YOLO
 ASSETS = ROOT / "assets"  # default images
@@ -522,7 +523,7 @@ def is_pytest_running():
     Returns:
         (bool): True if pytest is running, False otherwise.
     """
-    return ("PYTEST_CURRENT_TEST" in os.environ) or ("pytest" in sys.modules) or ("pytest" in Path(sys.argv[0]).stem)
+    return ("PYTEST_CURRENT_TEST" in os.environ) or ("pytest" in sys.modules) or ("pytest" in Path(ARGV[0]).stem)
 
 
 def is_github_action_running() -> bool:
@@ -869,8 +870,8 @@ def set_sentry():
                 return None  # do not send event
 
         event["tags"] = {
-            "sys_argv": sys.argv[0],
-            "sys_argv_name": Path(sys.argv[0]).name,
+            "sys_argv": ARGV[0],
+            "sys_argv_name": Path(ARGV[0]).name,
             "install": "git" if is_git_dir() else "pip" if is_pip_package() else "other",
             "os": ENVIRONMENT,
         }
@@ -879,7 +880,7 @@ def set_sentry():
     if (
         SETTINGS["sync"]
         and RANK in (-1, 0)
-        and Path(sys.argv[0]).name == "yolo"
+        and Path(ARGV[0]).name == "yolo"
         and not TESTS_RUNNING
         and ONLINE
         and is_pip_package()