convtools is a python library to declaratively define conversions from python objects to python objects, including processing collections and doing complex aggregations.
Project description
convtools is a python library to declaratively define conversions from python objects to python objects, including processing collections and doing complex aggregations.
Description
Conversions are not limited to simple data transformations, there are GroupBy & Aggregate conversions with many useful reducers:
from common Sum, Max
and less widely supported First/Last, Array/ArrayDistinct
to DictSum-like ones (for nested aggregation) and MaxRow/MinRow (for finding an object with max/min value and further processing)
- Every conversion:
contains the information of how to transform input data
can be piped into another conversion (same as wrapping)
has a method gen_converter returning a function compiled at runtime, which benefits from being highly specialized for the particular need (no superflious loops, minimum number of function calls)
despite being compiled at runtime, is debuggable due to linecache populating.
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