def __init__(self):
if Interfaces()['win32com'].available and _attempt_open_excel():
SheetTable.__init__(self, ctype='win32com')
elif Interfaces()['xlrd'].available:
SheetTable.__init__(self, ctype='xlrd')
else:
raise RuntimeError("No excel interface is available; install %s" %
self.requirements())
def available(self):
_inter = Interfaces()
return (_inter['win32com'].available and _attempt_open_excel()) \
or _inter['openpyxl'].available