关于尝试读取文件： python

Trying to read a file - python

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我正在尝试编写一个代码(在python上)，它将读取一个包含产品列表、每个产品的GTIN-8代码、每个产品的描述、库存和价格的文件。

到目前为止，我设法读完了最上面的一行，打印出了它的细节，但我不确定如何读完下一行。有什么帮助吗？请尽量保持简单：)

聚丙烯

我的男人Doroskevic代码：

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#csv is imported to read/write to the file
import csv

#Each Product is printed alongside it's GTIN-8 code and Price
print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
print("~ Welcome to Toms bits and bobs ~")
print("Pencil, 12346554, ￡0.40")
print("50 Staples, 12346882, ￡1.00")
print("50 Paper Clips, 12346875, ￡1.20")
print("Large Eraser, 12346844, ￡1.50")
print("100 A4 Sheets, 12346868, ￡2.00")
print("100 A3 Sheets, 12346837, ￡2.50")
print("25 Byro Pens, 12346820, ￡2.20")
print("Handwriting Pen, 12346899, ￡5.50")
print("50 Split Pins, 12346813, ￡0.60")
print("Office Chair, 12346912, ￡25.00")
print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")

#The file is opened and the user inputs the code for the product they
#wish to find.
file = open("Product_list.csv","r")
purchase = input(print("Please enter the GTIN-8 code of the product you wish to purchase e.g 12346554"))
line = file.readline()
data = line.split(",")
if purchase =="12346554":
while(line):
print ("Product:", data[0])
print ("GTIN-8 code:", data[1])
print ("Stock:", data[2])
print ("Description:", data[3])
print ("Price:", data[4])
line = file.readline()
break
if purchase =="12346882":
while(line):
print ("Product:", data[0])
print ("GTIN-8 code:", data[1])
print ("Stock:", data[2])
print ("Description:", data[3])
print ("Price:", data[4])
line = file.readline()
break

file.close()