i have writen the following test code
import numpy
first = numpy.array([[0,0]])
print(first)
temp = numpy.array([1,1])
first = numpy.insert(first, 0, temp)
print(first)
first = first[:-1]
print(first)
the intent for the code is to generate an array of arrays then insert an additional array and then remove the last array in the set
but after inserting the new array, then the original array converts from an array of arrays, to an array of numbers, so removing the last entry results in only removing the last number.
any idear how to fix?
Then you need to specify axis
first = numpy.insert(first, 0, temp, 0)
#array([[1, 1],
# [0, 0]])
If you don't, as the documentation says
axis: int, optional
Axis along which to insert values. If axis is None then arr is flattened first.
So, as is, your code starts with turning first into [0,0], then inserts values 1,1 at position 0 of that flattened array.
If you specify axis 0, then, as I believe you want, first is considered to be an array of arrays, and you insert at position 0 of this array of array a new array.