Is song of myself written in stanzas or cantos?

"Song of Myself" is written in sections, not stanzas or cantos.

While the poem does have clear divisions, they are not traditionally called stanzas (which are groupings of lines with a specific rhyme scheme or meter) or cantos (which are long, distinct sections in longer poems).

Instead, Whitman uses sections to break up the poem and create different moods, themes, and perspectives.