They seem to be string/unicode related.

1) This error remains after replacing the disappeared built in function "file" with "open"

====================================================================== ERROR: test_universal_newline (test_io.TestLoadTxt) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/lib/python3.1/site-packages/numpy/lib/tests/test_io.py", line 412, in test_universal_newline data = np.loadtxt(name) File "/usr/local/lib/python3.1/site-packages/numpy/lib/npyio.py", line 632, in loadtxt first_vals = split_line(first_line) File "/usr/local/lib/python3.1/site-packages/numpy/lib/npyio.py", line 610, in split_line line = line.split(comments)[0].strip() TypeError: Can't convert 'bytes' object to str implicitly

2) Not sure about this one, it doesn't show up for Python 2k ====================================================================== ERROR: test_type_check.TestDateTimeData.test_basic ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/lib/python3.1/site-packages/nose/case.py", line 177, in runTest self.test(*self.arg) File "/usr/local/lib/python3.1/site-packages/numpy/lib/tests/test_type_check.py", line 382, in test_basic assert_equal(datetime_data(a.dtype), ('us', 1, 1, 1)) File "/usr/local/lib/python3.1/site-packages/numpy/lib/type_check.py", line 641, in datetime_data result = func(obj) TypeError: this function takes at least 2 arguments (1 given)

Chuck