More formatting, older gradio version compatible with Python 3.7

requirements.txt

@@ -1,2 +1,2 @@
 raidionicsrads@git+https://github.com/dbouget/raidionics_rads_lib
-gradio==3.44.4
+gradio==3.34.0

src/__init__.py

@@ -1 +0,0 @@
-

src/utils.py

@@ -5,7 +5,7 @@ from skimage.measure import marching_cubes
 
 
 def load_to_numpy(data_path):
-    if type(data_path) != str:
+    if type(data_path) is not str:
         data_path = data_path.name
 
     image = nib.load(data_path)
@@ -27,7 +27,7 @@ def load_to_numpy(data_path):
 
 
 def load_pred_volume_to_numpy(data_path):
-    if type(data_path) != str:
+    if type(data_path) is not str:
         data_path = data_path.name
 
     image = nib.load(data_path)