Python - 从具有多个类别的 csv 文件制作字典

Question

我想用 python 从 csv 文件制作字典，但我有多个类别。我希望键是 ID 号，值是项目的名称。这是文本文件:

"ID#","name","quantity","price"
"1","hello kitty","4","9999"
"2","rilakkuma","3","999"
"3","keroppi","5","1000"
"4","korilakkuma","6","699"

这是我目前所拥有的:

txt = open("hk.txt","rU")

file_data = txt.read()
lst = []           #first make a list, and then convert it into a dictionary.
for key in file_data:
        k = key.split(",")
        lst.append((k[0],k[1]))

dic = dict(lst)
print(dic)

虽然这只是打印一个空列表。我希望键是 ID#，然后值将是产品的名称。我将制作另一个字典，其中名称作为键，ID# 作为值，但我认为这将是同一件事，但相反。

Answer 1

使用 csv module处理您的数据；它将删除引号并处理拆分:

results = {}

with open('hk.txt', 'r', newline='') as txt:
    reader = csv.reader(txt)
    next(reader, None)  # skip the header line
    for row in reader:
        results[row[0]] = row[1]

对于您的样本输入，这会产生:

{'4': 'korilakkuma', '1': 'hello kitty', '3': 'keroppi', '2': 'rilakkuma'}