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From: John Gordon <gordon@panix.com>
Newsgroups: comp.lang.python
Subject: Re: Finding scores from a list
Date: Tue, 24 Nov 2015 17:47:17 +0000 (UTC)
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In <277843f7-c898-4378-85ea-841b09a289e3@googlegroups.com> Cai Gengyang <gengyangcai@gmail.com> writes:


> results = [
> {"id": 1, "name": "ensheng", "score": 10},
> {"id": 2, "name": "gengyang", "score": 12},
> {"id": 3, "name": "jordan", "score": 5},
> ]

Okay, this is a list.

> I want to find gengyang's score. This is what I tried :

> >>> print((results["gengyang"])["score"])

> but I got an error message instead :

> Traceback (most recent call last):
>   File "<pyshell#62>", line 1, in <module>
>     print((results["gengyang"])["score"])
> TypeError: list indices must be integers, not str

Lists are indexed by number, not by name.

You want something like this:

    for result in results:
        if result["name"] == "gengyang":
            print result["score"]
            break

-- 
John Gordon                   A is for Amy, who fell down the stairs
gordon@panix.com              B is for Basil, assaulted by bears
                                -- Edward Gorey, "The Gashlycrumb Tinies"