Python最后索引(不是按数字)

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英文:

Python last index (not per number)

问题

我尝试读取来自Kraken的TradesHistory,但使用索引无法正常工作。只有在输入正确的交易时才能正常工作。如何逐个访问每个交易?

使用以下命令,我可以获取所有交易。它有效。

print(resp.json()['result']['trades'])

如果我现在想要访问第一个索引,它不起作用。

print(resp.json()['result']['trades'][0]['ordertxid'])

只有在输入正确的交易ID后,我才能访问以下索引。

print(resp.json()['result']['trades']['12345-abcde-ZYXWE']['ordertxid'])

我做错了什么?如何在不事先知道ID的情况下访问正确的索引?

英文:

I'm trying to read the TradesHistory from krakenn but it doesn't work with the index. It only works if I enter the right trade. How can I step through each individual trade individually?

With the following command I get all the trades. It works.

print(resp.json()['result']['trades'])

If I wanted to access the first index now, it doesn't work.

print(resp.json()['result']['trades'][0]['ordertxid'])

Only after entering the correct trade id can I access the following index.

print(resp.json()['result']['trades']['12345-abcde-ZYXWE']['ordertxid'])

What am I doing wrong? How can I access the correct index without first knowing the ID?

{
   "error":[
      
   ],
   "result":{
      "count":2,
      "trades":{
         "12345-abcde-ZYXWE":{},
         "ZYXWE-12345-abcde":{
            "ordertxid":"xyz",
         }
      }
   }
}

various Python index commands with different JSON formats

答案1

得分: 0

为了浏览所有交易,您可以循环遍历已经完成的交易并提取它们的信息。

您可以像这样使用 for 循环:

trades = resp.json()['result']['trades']
for trade in trades: # 访问每笔交易
    if trades[trade] == {}:
        print('交易 {} 为空。'.format(trade))
        continue
    print('{} 的交易信息:'.format(trade))
    for value in trades[trade]: # 访问交易字典中的每个值
        print(value, ':', trades[trade][value])

这段代码用于遍历并提取交易信息。

英文:

In order to go over all the trades, you can loop over the trades that were made and extract their information.

You can use a for loop like this:

trades = resp.json()['result']['trades']
for trade in trades: # accessing each trades
    if trades[trade] == {}:
        print('trade {} is empty.'.format(trade))
        continue
    print('{}\'s trade information:'.format(trade))
    for value in trades[trade]: # accessing each value inside the trade dictionary
        print(value, ':', trades[trade][value])

答案2

得分: 0

I tried with this code below it is working.

import json
f = open('test.json')
test = json.load(f)
test['result']['trades']['ZYXWE-12345-abcde']['ordertxid']

Output
'xyz'

And looking at your code it looks like you are referring to the wrong index here ['12345-abcde-ZYXWE']

英文:

I tried with this code below it is working.

import json
f = open('test.json')
test  = json.load(f)
test['result']['trades']['ZYXWE-12345-abcde']['ordertxid']

Output
'xyz'

And looking at your code it looks like you are referring to wrong index here ['12345-abcde-ZYXWE']

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  • 本文由 发表于 2023年3月12日 17:40:15
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