如何使用steam-api-python过滤json响应

Question

你好，我想使用steam api获取并过滤我的库存。为此，我使用python请求库。我可以读取响应，但我也希望我的代码对其进行过滤，这样它只会显示我库存中列出的商品的"市场名称"。这是我的代码

import requests
import pprint
payload = {
'l': 'english',
'count': '5',
}
r = requests.get('https://steamcommunity.com/inventory/76561198231636540/440/2', params=payload)
pprint.pprint(r.json)

以及我的部分回应

{'assets': [{'amount': '1',
'appid': 440,
'assetid': '8336159998',
'classid': '2650378220',
'contextid': '2',
'instanceid': '3630556994'},
{'amount': '1',
'appid': 440,
'assetid': '8718313756',
'classid': '1336074342',
'contextid': '2',
'instanceid': '11041153'},
{'amount': '1',
'appid': 440,
'assetid': '8621757160',
'classid': '1336074104',
'contextid': '2',
'instanceid': '11050161'},
{'amount': '1',
'appid': 440,
'assetid': '8336123257',
'classid': '1336074005',
'contextid': '2',
'instanceid': '331432'},
{'amount': '1',
'appid': 440,
'assetid': '8238635150',
'classid': '2019751157',
'contextid': '2',
'instanceid': '1366049788'}],
'descriptions': [{'actions': [{'link': 'http://wiki.teamfortress.com/scripts/itemredirect.php?id=327&lang=en_US',
'name': 'Item Wiki Page...'},
{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20S%owner_steamid%A%assetid%D9271970645775411665',
'name': 'Inspect in Game...'}],
'appid': 440,
'background_color': '3C352E',
'classid': '2650378220',
'commodity': 0,
'currency': 0,
'descriptions': [{'color': '8847ff',
'value': 'Commando Grade Sword (Factory '
'New)'},
{'value': 'When weapon is active:'},
{'value': 'This Weapon has a large melee '
'range andn'
'deploys and holsters slower'},
{'color': '7ea9d1',
'value': '0.5 sec increase in charge '
'duration'},
{'color': '7ea9d1',
'value': 'Melee kills refill 25% of your '
'charge meter'},
{'color': 'd83636',
'value': 'No random critical hits'},
{'color': 'd83636',
'value': '15% damage vulnerability on '
'wearer'},
{'value': ' '},
{'value': ' '},
{'value': 'Mann Co. Events Collection'},
{'color': '8847ff',
'value': '✔ Smissmas Sweater War Paint'},
{'value': ' '},
{'value': '( Not Tradable or Marketable '
')'}],
'icon_url': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEMaQkUTxr2vTx8mMnvA-aHAfQ_ktk664MayTdinxVwPffmaWZYexDHDPMMC8ot8Qn-WGk2scE1AYO1r7hffVjqttaUM7MtMIkYHMLZD6OOMFv96kpqh6QMLJOKvmqxitamdBjm',
'icon_url_large': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEMaQkUTxr2vTx8mMnvA-aHAfQ_ktk664MayTdinxVwPffmaWZYexDHDPMMC8ot8Qn-WGk2scE1AYO1r7hffVjqttaUM7MtMIkYHMLZD6OOMFv96kpqh6QMLJOKvmqxitamdBjm',
'instanceid': '3630556994',
'market_actions': [{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20M%listingid%A%assetid%D9271970645775411665',
'name': 'Inspect in Game...'}],
'market_hash_name': 'Smissmas Sweater Claidheamh Mòr '
'(Factory New)',
'market_marketable_restriction': 0,
'market_name': 'Smissmas Sweater Claidheamh Mòr (Factory '
'New)',
'market_tradable_restriction': 7,
'marketable': 0,
'name': 'Smissmas Sweater Claidheamh Mòr',
'name_color': 'FAFAFA',
'tags': [{'category': 'Quality',
'color': 'FAFAFA',
'internal_name': 'paintkitweapon',
'localized_category_name': 'Quality',
'localized_tag_name': 'Decorated Weapon'},
{'category': 'Type',
'internal_name': 'melee',
'localized_category_name': 'Type',
'localized_tag_name': 'Melee weapon'},
{'category': 'Class',
'internal_name': 'Demoman',
'localized_category_name': 'Class',
'localized_tag_name': 'Demoman'},
{'category': 'Exterior',
'internal_name': 'TFUI_InvTooltip_FactoryNew',
'localized_category_name': 'Exterior',
'localized_tag_name': 'Factory New'}],
'tradable': 0,
'type': ''},
{'actions': [{'link': 'http://wiki.teamfortress.com/scripts/itemredirect.php?id=200&lang=en_US',
'name': 'Item Wiki Page...'},
{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20S%owner_steamid%A%assetid%D4767637082452267116',
'name': 'Inspect in Game...'}],
'appid': 440,
'background_color': '3C352E',
'classid': '1336074342',
'commodity': 0,
'currency': 0,
'icon_url': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEIUxQSXA_2vSpEncbZAfOeD-VOzotl5MkEgWc7yVkjZLbmMWEzJAaaWfgHXaU_8F65WXVmsJ80UNGz8_UWJ1tD85_Guw',
'icon_url_large': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEIUxQSXA_2vSpEncbZAfOeD-VOzotl5MkEgWc7yVkjZLbmMWEzJAaaWfgHXaU_8F65WXVmsJ80UNGz8_UWJ1tD85_Guw',
'instanceid': '11041153',
'market_actions': [{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20M%listingid%A%assetid%D4767637082452267116',
'name': 'Inspect in Game...'}],
'market_hash_name': 'Strange Scattergun',
'market_marketable_restriction': 0,
'market_name': 'Strange Scattergun',
'market_tradable_restriction': 7,
'marketable': 1,
'name': 'Strange Scattergun',
'name_color': 'CF6A32',
'tags': [{'category': 'Quality',
'color': 'CF6A32',
'internal_name': 'strange',
'localized_category_name': 'Quality',
'localized_tag_name': 'Strange'},
{'category': 'Type',
'internal_name': 'primary',
'localized_category_name': 'Type',
'localized_tag_name': 'Primary weapon'},
{'category': 'Class',
'internal_name': 'Scout',
'localized_category_name': 'Class',
'localized_tag_name': 'Scout'}],
'tradable': 1,
'type': 'Strange Scattergun - Kills: 91'},
{'actions': [{'link': 'http://wiki.teamfortress.com/scripts/itemredirect.php?id=416&lang=en_US',
'name': 'Item Wiki Page...'}],
'appid': 440,
'background_color': '3C352E',
'classid': '1336074104',
'commodity': 0,
'currency': 0,
'descriptions': [{'color': '7ea9d1',
'value': 'Deals crits while the wielder '
'is rocket jumping'},
{'color': 'd83636',
'value': '20% slower firing speed'},
{'color': 'd83636',
'value': 'No random critical hits'},
{'value': ' '},
{'color': 'e1e10f',
'value': 'The Airborne Armaments'},
{'value': ' '},
{'color': '8b8989',
'value': 'The Liberty Launcher'},
{'color': '8b8989',
'value': 'The Reserve Shooter'},
{'color': '8b8989',
'value': 'The Market Gardener'},
{'color': '8b8989',
'value': "Jumper's Jeepcap"}],
'icon_url': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEIUwoQTxDnrAdEidriCPyJGt8Mmsgy4N4DimdpxVUuZuGzM2JkJwHHVqENCPQ4oVq6WXNlsJMwUdXjob0CcF7tqsKYZHE9EdYU',
'icon_url_large': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEIUwoQTxDnrAdEidriCPyJGt8Mmsgy4N4DimdpxVUuZuGzM2JkJwHHVqENCPQ4oVq6WXNlsJMwUdXjob0CcF7tqsKYZHE9EdYU',
'instanceid': '11050161',
'market_hash_name': 'Strange Market Gardener',
'market_marketable_restriction': 0,
'market_name': 'Strange Market Gardener',
'market_tradable_restriction': 7,
'marketable': 1,
'name': 'Strange Market Gardener',
'name_color': 'CF6A32',
'tags': [{'category': 'Quality',
'color': 'CF6A32',
'internal_name': 'strange',
'localized_category_name': 'Quality',
'localized_tag_name': 'Strange'},
{'category': 'Type',
'internal_name': 'melee',
'localized_category_name': 'Type',
'localized_tag_name': 'Melee weapon'},
{'category': 'Class',
'internal_name': 'Soldier',
'localized_category_name': 'Class',
'localized_tag_name': 'Soldier'}],
'tradable': 1,
'type': 'Strange Shovel - Kills: 178'},
{'actions': [{'link': 'http://wiki.teamfortress.com/scripts/itemredirect.php?id=655&lang=en_US',
'name': 'Item Wiki Page...'},
{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20S%owner_steamid%A%assetid%D16900367402742495547',
'name': 'Inspect in Game...'}],
'appid': 440,
'background_color': '3C352E',
'classid': '1336074005',
'commodity': 0,
'currency': 0,
'descriptions': [{'value': 'The more gifts you give away, '
'the bigger your heart will get! '
'Get what gift-givers call "the '
'Smissmas spirit," and what '
'cardiologists call hypertrophic '
'cardiomyopathy.'},
{'value': ' '},
{'value': '( Not Tradable or Marketable '
')'}],
'icon_url': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgETYRQuXBfuuzRCm9vZCvuKHOIBn90w2pxUyzFu3wJ4Yua0NjIyKlDEUfkNXqBroA7qDXEz7p9iBtHioesHLwnpsIvEZ7QycIYbTv20z5o',
'icon_url_large': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgETYRQuXBfuuzRCm9vZCvuKHOIBn90w2pxUyzFu3wJ4Yua0NjIyKlDEUfkNXqBroA7qDXEz7p9iBtHioesHLwnpsIvEZ7QycIYbTv20z5o',
'instanceid': '331432',
'market_actions': [{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20M%listingid%A%assetid%D16900367402742495547',
'name': 'Inspect in Game...'}],
'market_hash_name': 'Strange Spirit Of Giving',
'market_marketable_restriction': 0,
'market_name': 'Strange Spirit Of Giving',
'market_tradable_restriction': 7,
'marketable': 0,
'name': 'The Spirit Of Giving',
'name_color': 'CF6A32',
'tags': [{'category': 'Quality',
'color': 'CF6A32',
'internal_name': 'strange',
'localized_category_name': 'Quality',
'localized_tag_name': 'Strange'},
{'category': 'Type',
'internal_name': 'misc',
'localized_category_name': 'Type',
'localized_tag_name': 'Cosmetic'},
{'category': 'Class',
'internal_name': 'Scout',
'localized_category_name': 'Class',
'localized_tag_name': 'Scout'},
{'category': 'Class',
'internal_name': 'Sniper',
'localized_category_name': 'Class',
'localized_tag_name': 'Sniper'},
{'category': 'Class',
'internal_name': 'Soldier',
'localized_category_name': 'Class',
'localized_tag_name': 'Soldier'},
{'category': 'Class',
'internal_name': 'Demoman',
'localized_category_name': 'Class',
'localized_tag_name': 'Demoman'},
{'category': 'Class',
'internal_name': 'Medic',
'localized_category_name': 'Class',
'localized_tag_name': 'Medic'},
{'category': 'Class',
'internal_name': 'Heavy',
'localized_category_name': 'Class',
'localized_tag_name': 'Heavy'},
{'category': 'Class',
'internal_name': 'Pyro',
'localized_category_name': 'Class',
'localized_tag_name': 'Pyro'},
{'category': 'Class',
'internal_name': 'Spy',
'localized_category_name': 'Class',
'localized_tag_name': 'Spy'},
{'category': 'Class',
'internal_name': 'Engineer',
'localized_category_name': 'Class',
'localized_tag_name': 'Engineer'}],
'tradable': 0,
'type': 'The Badge - Gifts Given: 1'},
{'actions': [{'link': 'http://wiki.teamfortress.com/scripts/itemredirect.php?id=30195&lang=en_US',
'name': 'Item Wiki Page...'},
{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20S%owner_steamid%A%assetid%D13930633427653330675',
'name': 'Inspect in Game...'}],
'appid': 440,
'background_color': '3C352E',
'classid': '2019751157',
'commodity': 0,
'currency': 0,
'descriptions': [{'color': 'd83636',
'value': 'Holiday Restriction: Halloween '
'/ Full Moon'},
{'value': ''},
{'value': ' '},
{'value': '( Not Tradable or Marketable '
')'}],
'icon_url': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEDe1VBDEjdvSxLjdrjDP6zAO8Pn-U55IJS3HhulFQjYufkaWZjJ1zAUfIGWvBprAy8CCM0uMU6DNLipuhSeAjosNeSLfByZ_A-Mofd',
'icon_url_large': 'fWFc82js0fmoRAP-qOIPu5THSWqfSmTELLqcUywGkijVjZULUrsm1j-9xgEDe1VBDEjdvSxLjdrjDP6zAO8Pn-U55IJS3HhulFQjYufkaWZjJ1zAUfIGWvBprAy8CCM0uMU6DNLipuhSeAjosNeSLfByZ_A-Mofd',
'instanceid': '1366049788',
'market_actions': [{'link': 'steam://rungame/440/76561202255233023/+tf_econ_item_preview%20M%listingid%A%assetid%D13930633427653330675',
'name': 'Inspect in Game...'}],
'market_hash_name': 'Haunted Ethereal Hood',
'market_marketable_restriction': 0,
'market_name': 'Haunted Ethereal Hood',
'market_tradable_restriction': 7,
'marketable': 0,
'name': 'Haunted Ethereal Hood',
'name_color': '38f3ab',
'tags': [{'category': 'Quality',
'color': '38f3ab',
'internal_name': 'haunted',
'localized_category_name': 'Quality',
'localized_tag_name': 'Haunted'},
{'category': 'Type',
'internal_name': 'misc',
'localized_category_name': 'Type',
'localized_tag_name': 'Cosmetic'},
{'category': 'Class',
'internal_name': 'Demoman',
'localized_category_name': 'Class',
'localized_tag_name': 'Demoman'},
{'category': 'Class',
'internal_name': 'Spy',
'localized_category_name': 'Class',
'localized_tag_name': 'Spy'}],
'tradable': 0,
'type': 'Level 10 Costume Piece'}],
'last_assetid': '8238635150',
'more_items': 1,
'rwgrsn': -2,
'success': 1,
'total_inventory_count': 246}

有没有办法让我的代码只显示响应中列出的所有商品的"market_name"？此外，我想问一下，我从哪里可以了解更多关于制作http请求和json数据的信息，这样我就不必每次遇到youtube教程没有涵盖的问题时都在这里发布问题。

如有任何帮助，我们将不胜感激。

Answer 1

requests.Response.json()使用内置的JSON模块方法json.loads()进行JSON反序列化，因此如果找到键，则可以使用对象挂钩打印出该特定值。

import requests

def hook(dct):
for k, v in dct.items():
if k == "market_name":
print(v)

r = requests.get(
"https://steamcommunity.com/inventory/76561198231636540/440/2",
params={"l": "english", "count": "5",},
)
r.json(object_hook=hook)

输出

Smissmas Sweater Claidheamh Mòr (Factory New)
Strange Scattergun
Strange Market Gardener
Strange Spirit Of Giving
Haunted Ethereal Hood