codegen-medium-2022-08-19

playground.py

from convtools import conversion as c


conversion = c.and_(
    c.item(0) == b"abc",
    c.item(2) > 15,
)


In [5]: converter = conversion.gen_converter(debug=True)
   ...:

 def converter(data_, *, __v=__naive_values__["__v"]):
    try:
        return (data_[0] == __v) and (data_[2] > 15)
    except __exceptions_to_dump_sources:
        __convtools__code_storage.dump_sources()
        raise

In [6]: converter
Out[6]: <function _convtools.converter(data_, *, __v=b'abc')>



"""Of course I'd suggest building the full conversion pipeline, so convtools
can inline as much as possible, e.g.:"""
In [8]: c.filter(
   ...:     c.and_(
   ...:         c.item(0) == b"abc",
   ...:         c.item(2) > 15,
   ...:     )
   ...: ).gen_converter(debug=True)
   ...:

 def converter(data_, *, __v=__naive_values__["__v"]):
    try:
        return (i_ for i_ in data_ if ((i_[0] == __v) and (i_[2] > 15)))
    except __exceptions_to_dump_sources:
        __convtools__code_storage.dump_sources()
        raise

Out[8]: <function _convtools.converter(data_, *, __v=b'abc')>

of course, remove debug=True not to print generated code, formatted with black.

Here's the link to convtools library - https://github.com/westandskif/convtools