feat(compatibility): Python3.7 compatibility

.travis.yml

@@ -4,6 +4,7 @@ language: python
 python:
   - 3.9
   - 3.8
+  - 3.7
 cache:
   directories:
   - "$HOME/.cache/pip"

prototorch/core/distances.py

@@ -41,9 +41,6 @@ def euclidean_distance_v2(x, y):
     # batch diagonal. See:
     # https://pytorch.org/docs/stable/generated/torch.diagonal.html
     distances = torch.diagonal(pairwise_distances, dim1=-2, dim2=-1)
-    # print(f"{diff.shape=}")  # (nx, ny, ndim)
-    # print(f"{pairwise_distances.shape=}")  # (nx, ny, ny)
-    # print(f"{distances.shape=}")  # (nx, ny)
     return distances
 
 

setup.py

@@ -59,7 +59,7 @@ setup(
     url=PROJECT_URL,
     download_url=DOWNLOAD_URL,
     license="MIT",
-    python_requires=">=3.8",
+    python_requires=">=3.7",
     install_requires=INSTALL_REQUIRES,
     extras_require={
         "datasets": DATASETS,