converting a string to np.array with datetime64, NOT using Pandas
I'm looking for a way to convert dates given in the format YYYYmmdd to an np.array with dtype='datetime64'. The dates are stored in another np.array but with dtype='float64'. I am looking for a way to achieve this by avoiding Pandas! I already tried something similar as suggested in this answer but the author states that "[...] if (the date format) was in ISO 8601 you could parse it directly using numpy, [...]". As the date format in my case is YYYYmmdd which IS(?) ISO 8601 it should be somehow possible to parse it directly using numpy. But I don't know how as I am a total beginner in python