cogent3.core.alphabet.bytes_to_array

class bytes_to_array(chars: bytes, dtype: type[unsignedinteger], delete: bytes | None = None, dest: bytes | None = None)

wrapper around convert_alphabet. It defines a linear mapping from provided characters to uint8. The resulting object is callable, taking a bytes object and returning a numpy array.

Methods

__call__(seq)

Call self as a function.

__init__(chars: bytes, dtype: type[unsignedinteger], delete: bytes | None = None, dest: bytes | None = None) → None

Parameters:

chars

series of characters in the source alphabet

delete

characters to be deleted from the result

dest

destination bytes that chars are mapped to. If None (the default), uses bytes(bytearray(range(len(chars)))) and requires chars to be unique. If provided, must have the same length as chars; duplicates in chars are permitted so callers can collapse multiple source characters (eg case variants) onto the same index.

Methods

__init__(chars, dtype[, delete, dest])