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-rw-r--r--gn3/data_helpers.py25
1 files changed, 25 insertions, 0 deletions
diff --git a/gn3/data_helpers.py b/gn3/data_helpers.py
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+++ b/gn3/data_helpers.py
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+"""
+This module will hold generic functions that can operate on a wide-array of
+data structures.
+"""
+
+from math import ceil
+from functools import reduce
+from typing import Any, Tuple, Sequence
+
+def partition_all(num: int, items: Sequence[Any]) -> Tuple[Tuple[Any, ...], ...]:
+ """
+ Given a sequence `items`, return a new sequence of the same type as `items`
+ with the data partitioned into sections of `n` items per partition.
+
+ This is an approximation of clojure's `partition-all` function.
+ """
+ def __compute_start_stop__(acc, iteration):
+ start = iteration * num
+ return acc + ((start, start + num),)
+
+ iterations = range(ceil(len(items) / num))
+ return tuple([# type: ignore[misc]
+ tuple(items[start:stop]) for start, stop # type: ignore[has-type]
+ in reduce(
+ __compute_start_stop__, iterations, tuple())])