class Paginator:

    def __init__(self, listdata, pagesize):
        self.listdata = listdata
        self.pagesize = pagesize
    
    def GetPage(self, page_index):
        page_index = int(page_index) - 1
        page_list = []
        cur_index = 0
        max_index = 0
        
        if self.listdata:
            max_index, over = divmod(len(self.listdata), self.pagesize)
            if max_index and not over: max_index -= 1
            if max_index < 0: max_index = 0

            cur_index = int(page_index)
            if cur_index < 0: cur_index = 0
            if cur_index > max_index: cur_index = max_index
        
            offset = cur_index * self.pagesize
            page_list = list(self.listdata[offset: offset + self.pagesize])
       
        return cur_index, max_index, page_list