Update app.py

app.py

@@ -72,14 +72,14 @@ serieUIDs_list = ["1.3.6.1.4.1.14519.5.2.1.8421.4008.125612661111422710051062993
 
 #download series and convert to .nii.gz
 samples_root_dir = "model/asset/idc_samples"
-if not os.path.exists(samples_root_dir) : os.mkdir(samples_root_dir)
+if os.path.exists(samples_root_dir): shutil.rmtree(samples_root_dir)
+os.mkdir(samples_root_dir)
 for idx, serieUID_ddl in enumerate(serieUIDs_list):
   sample_dcm_dir = os.path.join(samples_root_dir, f"ddl_series{idx}_dcm")
   sample_nii_dir = os.path.join(samples_root_dir, f"ddl_series{idx}_nii")
   for dir in [sample_dcm_dir, sample_nii_dir]:
-    if os.path.exists(dir):
-      shutil.rmtree(dir)
-    os.makedirs(dir)
+    if os.path.exists(dir): shutil.rmtree(dir)
+    os.mkdir(dir)
   client.download_from_selection(seriesInstanceUID=\
      serieUID_ddl, \
      downloadDir=sample_dcm_dir)