给定的key-pair元组，我需要创建一个字典 [英] With given key-pair tuples, I need to create a dictionary

问题描述

使用my_file.txt中的key-pair元组，创建一个字典。如果密钥存在多个不同的值，请使用第一个看到的值
（例如，我们遇到的密钥的第一个实例）。

Using the key-pair tuples from my_file.txt, create a dictionary. If a key exists multiple times with different values, use the first seen value (e.g., the first instance we encountered the key).

my_file = [('a', '1')
           ('b', '2')
           ('c', '3')
           ('d', '4')
           ('e', '5')]

def makehtml(fname):
with open(fname) as f:      # reads lines from a fname file
    for line in f:
        tups = line2tup(line,"--")  # turns each line into a 2 elem tuple on it's own line.
        print tups

如何从my_file键/值对中创建一个字典。我试过了dict（my_file），但是告诉我ValueError：dictionary update sequence element＃0 has length 1; 2 is required。

How can I create a dictionary from my_file key/value pairs. I've tried dict(my_file), but it's telling me that "ValueError: dictionary update sequence element #0 has length 1; 2 is required".

推荐答案

这样做：

mydict = {}
for line in open(fname):
    k, v = line.split()
    mydict[int(k)] = v

这篇关于给定的key-pair元组，我需要创建一个字典的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！