Paging through data python little exercise

# Non-functional: 
DATA_LIST = []
 for i in the Range (1,901 ): 
    data_list.append ( ' Bean Valley cloud -% S ' % i) 

the while True: 

    # 1. You want to see the page number 
    Page = int (the INPUT ( " Please enter the page number you want to view: " )) 

    # 2. View how many data 
    per_page_num = 10 # 3. define the start and end positions of each page 
    start = (Page - 1) * per_page_num 
    end = Page * per_page_num 
    page_data_list = DATA_LIST [Start: End]
     for Item in

    
 page_data_list:
        print(item)

# Object Oriented: 
class Pagenation (Object): 

    DEF  the __init__ (Self, DATA_LIST, Page, per_data_num = 10 ):
         '' ' 
        Initialization 
        : param data_list: all listings data 
        : param page: to be currently viewed list page 
        : param per_data_num: Per the default page to be displayed several 
        '' ' 
        self.data_list = DATA_LIST 
        self.page = page 
        self.per_data_num = per_data_num 

    @Property 
    DEF start (Self):
         ' '' 
        calculates the starting position of the lead cable 
        : return: 
        '' ' 
        return ( self.page - 1) *self.per_data_num 

    @Property 
    DEF End (Self):
         '' ' 
        calculates the end position of the lead cable 
        : return: 
        ' '' 
        return self.page * self.per_data_num 

    DEF Show (Self):
         '' ' 
        slice data fetch, display the corresponding tab results 
        : return: 
        '' ' 
        result = self.data_list [self.start: self.end]
         for Row in result:
             Print (Row) 

DATA_LIST = []
 for I in Range (1,901 ): 
    data_list.append ( ' beans Valley cloud -% s' % I) 

the while True: 

    # 1. Enter the page number you want to view 
    Page = int (the INPUT ( " Please enter the page number you want to see: " )) 

    obj = Pagenation (DATA_LIST, Page) 

    obj.show ()