There was a previous issue here but it didn't help me with my problem:
When I try to change an exchanged amount with .amount = myamount I always get a "can't set attribute error".
Here is what i did:
## search for activity
msw = [get_activity(key) for key, ds in eco.items() if
'treatment of municipal solid waste, incineration' in ds['name'] and
ds['location'] == ('BE') and ds['unit'] == 'kilogram']
and
##make a copy
msw_be = msw.copy()
##get exchange
Carbon_dioxide_non_fossil = [exc for exc in mswi_be.biosphere() if 'Carbon dioxide, non-fossil' in exc['name']][0]
and then
##change amount
Carbon_dioxide_non_fossil.amount = 0.75152
here is where i get the error. Thank you for helping me.