Hi all, I don't know if this is known or not, so posting here before opening an issue. This shows up in scipy master as well as 0.12, along with a ton of (expected) deprecation warnings for the latter. Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/nose/case.py", line 197, in runTest self.test(*self.arg) File "/home/charris/.local/lib/python2.7/site-packages/scipy/io/matlab/tests/test_mio.py", line 301, in _load_check_case matdict = loadmat(file_name, struct_as_record=True) File "/home/charris/.local/lib/python2.7/site-packages/scipy/io/matlab/mio.py", line 126, in loadmat matfile_dict = MR.get_variables(variable_names) File "/home/charris/.local/lib/python2.7/site-packages/scipy/io/matlab/mio5.py", line 288, in get_variables res = self.read_var_array(hdr, process) File "/home/charris/.local/lib/python2.7/site-packages/scipy/io/matlab/mio5.py", line 248, in read_var_array return self._matrix_reader.array_from_header(header, process) File "mio5_utils.pyx", line 616, in scipy.io.matlab.mio5_utils.VarReader5.array_from_header (scipy/io/matlab/mio5_utils.c:5889) File "mio5_utils.pyx", line 657, in scipy.io.matlab.mio5_utils.VarReader5.array_from_header (scipy/io/matlab/mio5_utils.c:5446) File "mio5_utils.pyx", line 814, in scipy.io.matlab.mio5_utils.VarReader5.read_char (scipy/io/matlab/mio5_utils.c:7270) TypeError: buffer is too small for requested array Chuck