`ultralytics 8.3.20` W&B `plots=False` logging fix (#17088)

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

ultralytics/__init__.py

@@ -1,6 +1,6 @@
 # Ultralytics YOLO 🚀, AGPL-3.0 license
 
-__version__ = "8.3.19"
+__version__ = "8.3.20"
 
 import os
 

ultralytics/utils/callbacks/wb.py

@@ -137,17 +137,19 @@ def on_train_end(trainer):
     if trainer.best.exists():
         art.add_file(trainer.best)
         wb.run.log_artifact(art, aliases=["best"])
-    for curve_name, curve_values in zip(trainer.validator.metrics.curves, trainer.validator.metrics.curves_results):
-        x, y, x_title, y_title = curve_values
-        _plot_curve(
-            x,
-            y,
-            names=list(trainer.validator.metrics.names.values()),
-            id=f"curves/{curve_name}",
-            title=curve_name,
-            x_title=x_title,
-            y_title=y_title,
-        )
+    # Check if we actually have plots to save
+    if trainer.args.plots:
+        for curve_name, curve_values in zip(trainer.validator.metrics.curves, trainer.validator.metrics.curves_results):
+            x, y, x_title, y_title = curve_values
+            _plot_curve(
+                x,
+                y,
+                names=list(trainer.validator.metrics.names.values()),
+                id=f"curves/{curve_name}",
+                title=curve_name,
+                x_title=x_title,
+                y_title=y_title,
+            )
     wb.run.finish()  # required or run continues on dashboard