pip install pylabeador

You can use it as a Python library:

>>> import pylabeador
>>> pylabeador.syllabify("silabear")
['si', 'la', 'be', 'ar']

And you can use it as a command line tool:

$ pylabeador interesante
in-te-re-san-te

Automatic syllabification without additional lexical or and semantic knowledge of the words can only go so far. This syllabifier does not have such knowledge. Because of this, words such as transatlántico, whose correct hyphenation is trans-a-tlán-ti-co or even trans-at-lán-ti-co, end up being divided here into tran-sa-tlán-ti-co. To hyphenate this correctly, it is necessary to know that the word without the prefix exists in Spanish with similar semantics to the one of the original word. This is better and further explained in this paper: Automatic syllabification for Spanish using lemmatization and derivation to solve the prefix’s prominence issue

This work is inspired by the excellent online tool Silabeador TIP. This tool considers the semantics of the words and correctly separates syllables in the presence of prefixes. They also provide a C++ library that performs the naive syllable separation that pylabeador does. In fact, pyleabeador started as a Python port of that library.