Morsel.update

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method of Morsel (source)

Morsel.update(values)

D.update([E, ]**F) -> None.  Update D from mapping/iterable E and F.
If E is present and has a .keys() method, then does:  for k in E.keys(): D[k] = E[k]
If E is present and lacks a .keys() method, then does:  for k, v in E: D[k] = v
In either case, this is followed by: for k in F:  D[k] = F[k]

© Python Software Foundation. PSF License Version 2 · Official docs ↗

Changed in 3.5

3.5: an error is raised for invalid keys.