jztools.slice_sequence

Warning

This module is deprecated in favor of jztools.reference_sequence!!

Serializable sequential slicing.

Examples:

from jztools.slice_sequence import SliceSequence, SSQ_

Both SliceSequence and SSQ_ are aliases of the same class and can be used interchangeably.

# Using slice sequences
arr = {'field1':list(range(20))}

orig = arr['field1'][1:10][0]
with_syntax1 = SSQ_()['field1'][1:10][0](arr)
with_syntax2 = SSQ_(['field1', slice(1,10), 0])(arr)

assert with_syntax1 == orig
assert with_syntax1 == with_syntax2

Slice sequence objects can be serialized in a human-readable format:

from xerializer import Serializer

# Serialization:
srlzr = Serializer()
ssq = SSQ_()['field1'][1:10][0]
json_string = srlzr.serialize(ssq)

print(json_string)

deserialized_ssq = srlzr.deserialize(json_string)
assert deserialized_ssq(arr) == ssq(arr)

{"__type__": "SliceSequence", "value": ["field1", {"__type__": "slice", "start": 1, "stop": 10}, 0]}

Classes

SSQ_	alias of SliceSequence
SliceSequence([value])

class jztools.slice_sequence.SliceSequence(value=None)

Bases: Serializable

signature = 'SliceSequence'

A class-level property (None or str, no @property-decorated methods allowed) specifying the string to use in the __type__ field of the serialized representation. The actual signature is produced by classmethod get_signature().

__call__(obj)

Call self as a function.

as_serializable()

Carries out the same function as TypeSerializer.as_serializable() but for the current object (self).

classmethod from_serializable(value)

Returns an object of this class. By default, calls __init__ with the provided keywords.

(See TypeSerializer.from_serializable())

jztools.slice_sequence.SSQ_

alias of SliceSequence