Rename collections.py to metrics_collections.py to avoid clashing with collections package

CHANGELOG.md

@@ -45,6 +45,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `BLEUScore` now expects untokenized input to stay consistent with all the other text metrics ([#640](https://github.com/PyTorchLightning/metrics/pull/640))
 
 
+- Renamed `torchmetrics.collections` to `torchmetrics.metrics_collections` to avoid clashing with system's `collections` package ([#695](https://github.com/PyTorchLightning/metrics/pull/695))
+
+
 ### Deprecated
 
 - Renamed IoU -> Jaccard Index ([#662](https://github.com/PyTorchLightning/metrics/pull/662))

tests/bases/test_collections.py

@@ -18,7 +18,7 @@
 
 from tests.helpers import seed_all
 from tests.helpers.testers import DummyMetricDiff, DummyMetricSum
-from torchmetrics.collections import MetricCollection
+from torchmetrics.metric_collections import MetricCollection
 
 seed_all(42)
 

torchmetrics/__init__.py

@@ -40,9 +40,9 @@
     Specificity,
     StatScores,
 )
-from torchmetrics.collections import MetricCollection  # noqa: E402
 from torchmetrics.image import PSNR, SSIM  # noqa: E402
 from torchmetrics.metric import Metric  # noqa: E402
+from torchmetrics.metric_collections import MetricCollection  # noqa: E402
 from torchmetrics.regression import (  # noqa: E402
     CosineSimilarity,
     ExplainedVariance,