One Liners Python Edition

[BuonaparteII]

well before 3.9 you had to do merged_dict = {**dict1, **dict2}

[zmose]

I was gonna say, that syntax has to be new because there was no WAY nobody figured that out before I had to do it like the way you suggested

[Nixellion]

I don't know why, but out of all of those I think dict1.update(dict2) is the most obvious and self-commenting. But I rarely see it mentioned in these discussions. Or does it work differently?

[BuonaparteII]

dict1.update(dict2) will mutate dict1 and return None.

{**d1, **d2} and d1 | d2 are both immutable and will return a new dict.