try: import numpy as np ## Wrap np.concatenate to catch and avoid a segmentation fault bug ## (numpy trac issue #2084) if not hasattr(np, 'concatenate_orig'): np.concatenate_orig = np.concatenate def concatenate(vals, **kwds): """Wrapper around numpy.concatenate (see pyqtgraph/numpy_fix.py)""" dtypes = [getattr(v, 'dtype', None) for v in vals] names = [getattr(dt, 'names', None) for dt in dtypes] if len(dtypes) < 2 or all([n is None for n in names]): return np.concatenate_orig(vals, **kwds) if any([dt != dtypes[0] for dt in dtypes[1:]]): raise TypeError("Cannot concatenate structured arrays of different dtype.") return np.concatenate_orig(vals, **kwds) np.concatenate = concatenate except ImportError: pass