'pyfile:py, sourcefile:source excel, excel:dest excel'

def __init__(self, pyfile, sourcefile, dstfile):

    self.pyfile = os.path.abspath(pyfile)
    if (sourcefile == ''):
        self.sourcefile = sourcefile
    else:
        self.sourcefile = os.path.abspath(sourcefile)
    self.dstfile = os.path.abspath(dstfile)
    self.xlsx = None
    self.xbook = None
    self.sheetCNames = {}
    self.sheetENames = {}
    self.mapSheet = {}
