JSON problem with Python-requests post data

The code is as follows:

Import JSON Import  = requests.post (url, data = {"a": Json.dumps ({"b" ) " C " # url is random URL

Use Fiddler to grab the package, although in WebForms you see the format as follows:

But see the results in raw as follows:

That is, automatic execution of the UrlEncode, view requests/models.py source code discovery, if the data can be iterated, that is, automatically join the "application/x-www-form-urlencoded" header, and perform UrlEncode:

In the Prepare_body method of the Preparedrequest class

if Data:     = self._encode_params (data)    ifor'read'):        = None    Else:        'application/ x-www-form-urlencoded'

In the _encode_params (data) method of the Requestencodingmixin class

ifisinstance (data, (str, bytes)):returnDataelifHasattr (data,'Read'):    returnDataelifHasattr (data,'__iter__'): Result= []     forK, vsinchto_key_val_list (data):ifIsinstance (VS, basestring)or  notHasattr (VS,'__iter__'): vs=[vs] forVinchvs:ifV is  notNone:result.append ((K.encode ('Utf-8')ifIsinstance (k, str)ElseK, V.encode ('Utf-8')ifIsinstance (V, str)Elsev))returnUrlEncode (Result, doseq=True)Else:    returnData

Workaround:

Import JSON Import  = {"content-type""application/x-www-form-urlencoded"   "a=%s"% Json.dumps ({"B"    " C "  = requests.post (URL, data = data, headers = headers);

Python-requests JSON problem with post data