Error when downloading IRI

[kandread]

Updating database!
Traceback (most recent call last):
File "./bin/rheas", line 17, in
sys.exit(rheas.run())
File "/home/oware/RHEAS/src/rheas.py", line 80, in run
update(dbname, config_filename)
File "/home/oware/RHEAS/src/rheas.py", line 68, in update
mod.download(dbname, dt, bbox)
File "/home/oware/RHEAS/src/datasets/iri.py", line 71, in download
t0 = np.where(t == ((dt.year - 1960) * 12 + dt.month - 0.5))[0]
AttributeError: 'tuple' object has no attribute 'year'