change formatting to match the main program in devices.py

Author: AUTOMATIC1111

modules/devices.py

@@ -3,23 +3,27 @@
 import torch
 from modules import errors
 
+
 # has_mps is only available in nightly pytorch (for now) and MasOS 12.3+.
 # check `getattr` and try it for compatibility
 def has_mps() -> bool:
-    if not getattr(torch, 'has_mps', False): return False
+    if not getattr(torch, 'has_mps', False):
+        return False
     try:
         torch.zeros(1).to(torch.device("mps"))
         return True
     except Exception:
         return False
 
-cpu = torch.device("cpu")
 
 def extract_device_id(args, name):
     for x in range(len(args)):
-        if name in args[x]: return args[x+1]
+        if name in args[x]:
+            return args[x + 1]
+
     return None
 
+
 def get_optimal_device():
     if torch.cuda.is_available():
         from modules import shared
@@ -52,10 +56,12 @@ def enable_tf32():
 
 errors.run(enable_tf32, "Enabling TF32")
 
+cpu = torch.device("cpu")
 device = device_interrogate = device_gfpgan = device_swinir = device_esrgan = device_scunet = device_codeformer = None
 dtype = torch.float16
 dtype_vae = torch.float16
 
+
 def randn(seed, shape):
     # Pytorch currently doesn't handle setting randomness correctly when the metal backend is used.
     if device.type == 'mps':
@@ -89,6 +95,11 @@ def autocast(disable=False):
 
     return torch.autocast("cuda")
 
+
 # MPS workaround for https://github.com/pytorch/pytorch/issues/79383
-def mps_contiguous(input_tensor, device): return input_tensor.contiguous() if device.type == 'mps' else input_tensor
-def mps_contiguous_to(input_tensor, device): return mps_contiguous(input_tensor, device).to(device)
+def mps_contiguous(input_tensor, device):
+    return input_tensor.contiguous() if device.type == 'mps' else input_tensor
+
+
+def mps_contiguous_to(input_tensor, device):
+    return mps_contiguous(input_tensor, device).to(device)