Adel mtg labels have type bytes

[rbarillot]

Hi,

using adel 2.0.2, I'm having a strange behaviour while loading an old pickled MTG (located [in] (https://github.com/openalea-incubator/fspm-wheat/tree/master/example/Vegetative_stages/inputs)).

Here is the piece of code I'm using to load the MTG

from alinea.adel.adel_dynamic import AdelDyn
from alinea.adel.echap_leaf import echap_leaves

adel_wheat = AdelDyn(seed=1, scene_unit='m', leaves=echap_leaves(xy_model='Soissons_byleafclass'))
g = adel_wheat.load(directory=INPUTS_DIRPATH)

While the labels of the mtg vertices used to be strings, they are now converted into bytes:

for vid in g.components_at_scale(1,2):
    print(g.get_vertex_property(vid)['label'], type(g.get_vertex_property(vid)['label']))
    
MS <class 'str'>
b'T1' <class 'numpy.bytes_'>
b'T1.0' <class 'numpy.bytes_'>
b'T2' <class 'numpy.bytes_'>
b'T2.0' <class 'numpy.bytes_'>
b'T3' <class 'numpy.bytes_'>
b'T4' <class 'numpy.bytes_'>

TY

[pradal]

Strange. It is like you are mixing numpy data ad python data in an MTG
I have the same result when using

with open('adel0000.pckl', 'rb') as f:
     g=pickle.load(f, encoding='utf-8')

for vid in g.components_at_scale(1,2):
    print(g.get_vertex_property(vid)['label'], type(g.get_vertex_property(vid)['label']))