from itertools import islice
from typing import Any, Callable, Dict, Iterator, List, Tuple
+
def init_or_inc(
d: Dict[Any, Any],
key: Any,
*,
init_value: Any = 1,
- inc_function: Callable[..., Any] = lambda x: x + 1
+ inc_function: Callable[..., Any] = lambda x: x + 1,
) -> bool:
"""
Initialize a dict value (if it doesn't exist) or increments it (using the
"""
Shards a dict into N subdicts which, together, contain all keys/values
from the original unsharded dict.
+
"""
items = d.items()
for x in range(0, len(d), size):
def coalesce_by_creating_list(key, new_value, old_value):
from list_utils import flatten
+
return flatten([new_value, old_value])
def coalesce(
- inputs: Iterator[Dict[Any, Any]],
- *,
- aggregation_function: Callable[[Any, Any], Any] = coalesce_by_creating_list
+ inputs: Iterator[Dict[Any, Any]],
+ *,
+ aggregation_function: Callable[[Any, Any], Any] = coalesce_by_creating_list,
) -> Dict[Any, Any]:
"""Merge N dicts into one dict containing the union of all keys /
values in the input dicts. When keys collide, apply the
if __name__ == '__main__':
import doctest
+
doctest.testmod()