(Spyder dev here) The problem is quite simple: Spyder doesn't have support to show all types of objects in its Variable Explorer. We only support lists, dictionaries, numpy
arrays, numbers and strings, if I remember correctly. You have discovered one important type (i.e. matrices), others are Pandas DataFrames
and Series
, which we should really add.
Edit: Numpy matrices, along with Pandas DataFrames
and Series
are shown and can be edited through the Variable Explorer since version 2.3.1
.