[英]Use “byte-like object” from urlopen.read with JSON?
只是试图测试非常简单的Python JSON命令,但我遇到了一些麻烦。
urlopen('http://www.similarsitesearch.com/api/similar/ebay.com').read()
应该输出
'{"num":20,"status":"ok","r0":"http:\\/\\/www.propertyroom.com\\/","r1":"http:\\/\\/www.ubid.com\\/","r2":"http:\\/\\/www.bidcactus.com\\/","r3":"http:\\/\\/www.etsy.com\\/","r4":"http:\\/\\/us.ebid.net\\/","r5":"http:\\/\\/www.bidrivals.com\\/","r6":"http:\\/\\/www.ioffer.com\\/","r7":"http:\\/\\/www.shopgoodwill.com\\/","r8":"http:\\/\\/www.beezid.com\\/","r9":"http:\\/\\/www.webidz.com\\/","r10":"http:\\/\\/www.auctionzip.com\\/","r11":"http:\\/\\/www.overstock.com\\/","r12":"http:\\/\\/www.bidspotter.com\\/","r13":"http:\\/\\/www.paypal.com\\/","r14":"http:\\/\\/www.ha.com\\/","r15":"http:\\/\\/www.onlineauction.com\\/","r16":"http:\\/\\/bidz.com\\/","r17":"http:\\/\\/www.epier.com\\/","r18":"http:\\/\\/www.sell.com\\/","r19":"http:\\/\\/www.rasmus.com\\/"}'
但我得到同样的字符串,前面有一个b
:
b'{"num":20,"status":"ok","r0":"http:\\/\\/www.propertyroom.com\\/","r1":"http:\\/\\/www.ubid.com\\/","r2":"http:\\/\\/www.bidcactus.com\\/","r3":"http:\\/\\/www.etsy.com\\/","r4":"http:\\/\\/us.ebid.net\\/","r5":"http:\\/\\/www.bidrivals.com\\/","r6":"http:\\/\\/www.ioffer.com\\/","r7":"http:\\/\\/www.shopgoodwill.com\\/","r8":"http:\\/\\/www.beezid.com\\/","r9":"http:\\/\\/www.webidz.com\\/","r10":"http:\\/\\/www.auctionzip.com\\/","r11":"http:\\/\\/www.overstock.com\\/","r12":"http:\\/\\/www.bidspotter.com\\/","r13":"http:\\/\\/www.paypal.com\\/","r14":"http:\\/\\/www.ha.com\\/","r15":"http:\\/\\/www.onlineauction.com\\/","r16":"http:\\/\\/bidz.com\\/","r17":"http:\\/\\/www.epier.com\\/","r18":"http:\\/\\/www.sell.com\\/","r19":"http:\\/\\/www.rasmus.com\\/"}'
随后,当我试着跑
json.loads(urlopen('http://similarsitesearch.com/api/similar/ebay.com').read())
它给了我错误信息:
TypeError:不能在类字节对象上使用字符串模式“
我假设与b
?
我从urllib.request
导入了urlopen
,我正在运行Python 3。
有任何想法吗?
read()中的内容是字节类型,因此您需要在尝试将其解码为json对象之前将其转换为字符串。
要将字节转换为字符串,请将代码更改为: urlopen('http://similarsitesearch.com/api/similar/ebay.com').read().decode("utf-8")
它工作得很好:
def myView(request):
encoding = request.read().decode("utf-8")
dic = json.loads(encoding)
print(dic)
您需要检查Content-Type
标头中指定的字符集,并在将其传递给json.load*()
之前对其进行解码。
urllib返回一个字节数组,我假设它是py3中的默认值,json期待一个字符串。 尝试在调用json调用之前将返回值包装在str()调用中
j = str(urlopen('http://similarsitesearch.com/api/similar/ebay.com').read())
json.loads(j)
看起来像字节文字 。 研究如何使用http获取数据,或者API如何返回标头中的数据。
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