Now the same round trip through CSV

NumPy · from Saving and loading

np.savenp.loadnp.saveznp.savetxtnp.genfromtxtmmap_mode

Putting the kettle on…

Starting up…

Exercise 2

Now the same round trip through CSV. Save a to "x.csv" with a comma delimiter, load it back, and return its dtype — showing what text loses.

your answer
stuck? the lesson behind it
Saving and loading
Binary keeps everything; text loses your dtypes. Know which you want.