post请求

参数赋给data变量时，返回400
参数赋给json变量后，正常200

# coding:utf-8

import requests
url = r'http://**/**'
data = {
    'fq': 'false',
    'limit': 10,
    'page': 1
}
headers = {
    'User-Agent': 'Mozilla/5.0 (Linux; Android 4.0.4; Galaxy Nexus Build/IMM76B) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.133 Mobile Safari/535.19',
}
r = requests.post(url=url, headers=headers,data=data,timeout=30)  
print(r.status_code) # 400
r = requests.post(url=url, headers=headers, json=data, timeout=30)  
print(r.status_code)# 200