Question

我正在尝试运行以下代码：

Headers=requests.get('https://coinmarketcap.com').headers
CookieDough=Headers['Set-Cookie']
Headers="""\"{
":authority":"coinmarketcap.com",
":method":"POST",
":path":"/login",
":scheme":"https",
"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
"accept-encoding":"gzip, deflate, br",
"accept-language":"en-US,en;q=0.9",
"cache-control":"max-age=0",
"content-length":"743",
"content-type":"application/x-www-form-urlencoded",
"cookie":\""""+CookieDough+"""\",
"origin":"https://coinmarketcap.com",
"referer":"https://coinmarketcap.com",
"upgrade-insecure-requests":"1",
"user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"
}\""""

print(json.loads(Headers, strict=False))

在过去的帖子中有人在python 2.7上运行了这个代码并且它运行成功，但是当我在我的结尾运行python 3.6.4时，它没有运行。它给了我以下错误：

json.decoder.JSONDecodeError: Extra data: line 2 column 2 (char 4)

我在Sublime Text 3 Builder上运行Python 3.6.4。

谢谢

Answer 1

发布后你的例子是不完整的，所以很难肯定，但不管你是否确定它在Python 2.7中有效，因为它在Python版本2.7或3.6中不适用于我而没有修改。

具体来说，这是一个问题：

Headers="""\"{
}\""""

字符串中的第一个和最后一个字符是\"，这是一个常规的双引号字符。这意味着Headers的值如下所示：

"{
":authority":"coinmarketcap.com",
":method":"POST",
":path":"/login",
":scheme":"https",
"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
"accept-encoding":"gzip, deflate, br",
"accept-language":"en-US,en;q=0.9",
"cache-control":"max-age=0",
"content-length":"743",
"content-type":"application/x-www-form-urlencoded",
"cookie":"stuff",
"origin":"https://coinmarketcap.com",
"referer":"https://coinmarketcap.com",
"upgrade-insecure-requests":"1",
"user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"
}"

这不是有效的JSON;它是一个包含嵌入换行符的字符串。您可能希望从开头和结尾删除有问题的\"。

如果打算让它成为一个看起来像是包含字典的字符串，那么根据定义，它就不需要使用json模块将其解码为字符串。

如果打算让它成为字典，删除这些字符会使它再次有效（假设CookieDough中的任何内容都是有效的JSON字符串）。

Answer 2

行标题是它应该存在的问题 "{ ":authority":"coinmarketcap.com", ":method":"POST", ":path":"/login", ":scheme":"https", "accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8", "accept-encoding":"gzip, deflate, br", "accept-language":"en-US,en;q=0.9", "cache-control":"max-age=0", "content-length":"743", "content-type":"application/x-www-form-urlencoded", "cookie":"stuff", "origin":"https://coinmarketcap.com", "referer":"https://coinmarketcap.com", "upgrade-insecure-requests":"1", "user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36" }"

Python代码在Py2.7中运行没有问题，但在3.6.4中没有

2 个答案: