TST: move scipy import in create_dat.py into main() to avoid test failures on Travis (scipy is not a dependency of pywt)
TST: move scipy import in create_dat.py into main() to avoid test failures on Travis (scipy is not a dependency of pywt)

kwohlfahrt/pywt,rgommers/pywt,PyWavelets/pywt,grlee77/pywt,kwohlfahrt/pywt,eriol/pywt,eriol/pywt,michelp/pywt,PyWavelets/pywt,michelp/pywt,michelp/pywt,kwohlfahrt/pywt,rgommers/pywt,rgommers/pywt,eriol/pywt,grlee77/pywt,rgommers/pywt