fix: replace prod not supported py3.7

Author: flavioschneider

audio_diffusion_pytorch/model.py

@@ -1,5 +1,4 @@
 import random
-from math import prod
 from typing import Optional, Sequence, Union
 
 import torch
@@ -16,7 +15,7 @@
     Schedule,
 )
 from .modules import Encoder1d, ResnetBlock1d, UNet1d
-from .utils import default, to_list
+from .utils import default, prod, to_list
 
 """ Diffusion Classes (generic for 1d data) """
 

audio_diffusion_pytorch/utils.py

@@ -1,3 +1,4 @@
+from functools import reduce
 from inspect import isfunction
 from typing import Callable, List, Optional, Sequence, TypeVar, Union
 
@@ -30,3 +31,7 @@ def to_list(val: Union[T, Sequence[T]]) -> List[T]:
     if isinstance(val, list):
         return val
     return [val]  # type: ignore
+
+
+def prod(vals: Sequence[int]) -> int:
+    return reduce(lambda x, y: x * y, vals)

setup.py

@@ -3,7 +3,7 @@
 setup(
     name="audio-diffusion-pytorch",
     packages=find_packages(exclude=[]),
-    version="0.0.25",
+    version="0.0.26",
     license="MIT",
     description="Audio Diffusion - PyTorch",
     long_description_content_type="text/markdown",