smart24/write: Unsupported data type int32 in Stream[0].data

[helenabuurman]

st.write from a smart24 call throws the error:

File "", line 1, in
st.write('test.mseed',format="MSEED")
File "C:\Users\helena\Anaconda3\envs\obspy\lib\site-packages\obspy\core\stream.py", line 1443, in write
write_format(self, filename, **kwargs)
File "C:\Users\helena\Anaconda3\envs\obspy\lib\site-packages\obspy\io\mseed\core.py", line 789, in _write_mseed
raise Exception(msg)
Exception: Unsupported data type int32 in Stream[0].data

Replicate using a list of cd11 files:
st = Stream()
for cd11 in cd11list:
st += Smart24(cd11).st
st.write('test.mseed',format="MSEED")

[helenabuurman]

I should have added:
I got around this issue by changing like 485 of smart24.py to:
data = obspy.core.compatibility.from_buffer(csf['channel_data'],dtype=np.int)