geneticengine.grammar.metahandlers.ints

Module Contents

Classes

IntRange

IntRange(a,b) restricts ints to be between a and b.

IntList

IntList([a_1, .., a_n]) restricts ints to be an element from the list.

IntervalRange

This metahandler restricts the creation of ranges between two integers

Attributes

min

max

geneticengine.grammar.metahandlers.ints.min
geneticengine.grammar.metahandlers.ints.max
class geneticengine.grammar.metahandlers.ints.IntRange(min, max)

Bases: geneticengine.grammar.metahandlers.base.MetaHandlerGenerator

IntRange(a,b) restricts ints to be between a and b.

The range can be dynamically altered before the grammar extraction

Int.__init__.__annotations__[“value”] = Annotated[int, IntRange(c,d)]

generate(r, g, rec, new_symbol, depth, base_type, context)

Generates an instance of type base_type, according to some criterion.

Parameters:

  • r (Source) – Random source for generation

  • g (Grammar) – Grammar to follow in the generation

  • rec (Callable[[int, Type], Any]) – The method to generate a new instance of type and maximum depth d

  • depth (int) – the current depth budget

  • base_type (Type) – The inner type being annotated

  • argname (str) – The name of the field of the parent object which is being generated

  • context (dict[str, str]) – The names and types of all fields in the parent object

  • context

classmethod __class_getitem__(args)
__repr__()

Return repr(self).

class geneticengine.grammar.metahandlers.ints.IntList(elements)

Bases: geneticengine.grammar.metahandlers.base.MetaHandlerGenerator

IntList([a_1, .., a_n]) restricts ints to be an element from the list.

[a_1, .., a_n].

The range can be dynamically altered before the grammar extraction

Int.__init__.__annotations__[“value”] = Annotated[int, IntList[a_1, .., a_n]]

generate(r, g, rec, new_symbol, depth, base_type, context)

Generates an instance of type base_type, according to some criterion.

Parameters:

  • r (Source) – Random source for generation

  • g (Grammar) – Grammar to follow in the generation

  • rec (Callable[[int, Type], Any]) – The method to generate a new instance of type and maximum depth d

  • depth (int) – the current depth budget

  • base_type (Type) – The inner type being annotated

  • argname (str) – The name of the field of the parent object which is being generated

  • context (dict[str, str]) – The names and types of all fields in the parent object

  • context

classmethod __class_getitem__(args)
__repr__()

Return repr(self).

class geneticengine.grammar.metahandlers.ints.IntervalRange(minimum_length, maximum_length, maximum_top_limit)

Bases: geneticengine.grammar.metahandlers.base.MetaHandlerGenerator

This metahandler restricts the creation of ranges between two integers by forcing a minimum and maximum range size, as well as a top limit that the range can reach.

This is useful in genomics to generate random windows of variable size to scan an input sequence

Parameters:

  • minimum_length (int) – Minimum length possible when randomly generating the range

  • maximum_length (int) – Maximum length possible when randomly generating the range

  • maximum_top_limit (int) – Maximum value the range can reach

classmethod __class_getitem__(args)
generate(r, g, rec, new_symbol, depth, base_type, context)

Generates an instance of type base_type, according to some criterion.

Parameters:

  • r (Source) – Random source for generation

  • g (Grammar) – Grammar to follow in the generation

  • rec (Callable[[int, Type], Any]) – The method to generate a new instance of type and maximum depth d

  • depth (int) – the current depth budget

  • base_type (Type) – The inner type being annotated

  • argname (str) – The name of the field of the parent object which is being generated

  • context (dict[str, str]) – The names and types of all fields in the parent object

  • context