4043 Fix windows PIL issue

.github/workflows/conda.yml

@@ -47,7 +47,9 @@ jobs:
       run: |
         conda activate monai
         # this `cpuonly` and -c conda-forge is needed to reduce the paging file size on a github instance
-        conda install pytorch torchvision torchaudio cpuonly -c pytorch -c conda-forge
+        # force to install `cpuonly==2.0.0` is to fix the same issue as:
+        # https://github.com/pytorch/vision/issues/4240
+        conda install pytorch torchvision torchaudio cpuonly==2.0.0 -c pytorch -c conda-forge
         conda deactivate
     - name: Test env(CPU ${{ runner.os }})
       shell: bash -l {0}

monai/handlers/utils.py

@@ -121,7 +121,10 @@ class    mean    median    max    5percentile 95percentile  notnans
             with open(os.path.join(save_dir, f"{k}_raw.csv"), "w") as f:
                 f.write(f"filename{deli}{deli.join(class_labels)}\n")
                 for i, b in enumerate(v):
-                    f.write(f"{images[i] if images is not None else str(i)}{deli}{deli.join([str(c) for c in b])}\n")
+                    f.write(
+                        f"{images[i] if images is not None else str(i)}{deli}"
+                        f"{deli.join([f'{c:.4f}' if isinstance(c, (int, float)) else str(c) for c in b])}\n"
+                    )
 
             if summary_ops is not None:
                 supported_ops = OrderedDict(

tests/test_handler_metrics_saver.py

@@ -66,7 +66,7 @@ def _save_metrics(engine):
                 f_csv = csv.reader(f)
                 for i, row in enumerate(f_csv):
                     if i > 0:
-                        self.assertEqual(row, [f"filepath{i}\t{float(i)}\t{float(i + 1)}\t{i + 0.5}"])
+                        self.assertEqual(row, [f"filepath{i}\t{float(i):.4f}\t{float(i + 1):.4f}\t{i + 0.5:.4f}"])
             self.assertTrue(os.path.exists(os.path.join(tempdir, "metric3_summary.csv")))
             # check the metric_summary.csv and content
             with open(os.path.join(tempdir, "metric4_summary.csv")) as f:

tests/test_handler_metrics_saver_dist.py

@@ -95,7 +95,7 @@ def _all_gather(engine):
                 f_csv = csv.reader(f)
                 for i, row in enumerate(f_csv):
                     if i > 0:
-                        expected = [f"{fnames[i-1]}\t{float(i)}\t{float(i + 1)}\t{i + 0.5}"]
+                        expected = [f"{fnames[i-1]}\t{float(i):.4f}\t{float(i + 1):.4f}\t{i + 0.5:.4f}"]
                         self.assertEqual(row, expected)
             self.assertTrue(os.path.exists(os.path.join(tempdir, "metric3_summary.csv")))
             # check the metric_summary.csv and content

tests/test_write_metrics_reports.py

@@ -45,7 +45,7 @@ def test_content(self):
                 f_csv = csv.reader(f)
                 for i, row in enumerate(f_csv):
                     if i > 0:
-                        self.assertEqual(row, [f"filepath{i}\t{float(i)}\t{float(i + 1)}\t{i + 0.5}"])
+                        self.assertEqual(row, [f"filepath{i}\t{float(i):.4f}\t{float(i + 1):.4f}\t{i + 0.5:.4f}"])
             self.assertTrue(os.path.exists(os.path.join(tempdir, "metric3_summary.csv")))
             # check the metric_summary.csv and content
             with open(os.path.join(tempdir, "metric3_summary.csv")) as f: