`common_alphabet`#

biotite.sequence.common_alphabet(alphabets: Iterable[Alphabet[S]]) → Alphabet[S] | None[source]#

Determine the alphabet from a list of alphabets, that extends all alphabets.

Parameters:

alphabetsiterable of Alphabet: The alphabets from which the common one should be identified.

Returns:

common_alphabetAlphabet or None: The alphabet from alphabets that extends all alphabets. None if no such common alphabet exists.