python requests.request 和session.request区别究竟在哪里

import requests

hd={"X-auth":"eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJzeXN0ZW0iLCJBUEkiOiIvdW1sb2dpbiIsInRpbWUiOjE1NjU3NjkzNTAzMjIsInVzZXJOYW1lIjoidl93YmthaXlhbmciLCJpYXQiOjE1NjU3NjkzNTAsImp0aSI6ImZlNDMyM2I0LTk2NTctNDM3YS1iNjlmLTE1ZDZlNWUyNDZjNSJ9.nB9E93PLEiZZMjvmTOi2ytKCRVQk1hRtJdrxhQ_N87o"}

# api.py request() func
rep2=requests.request(method="post",url="http://10.107.119.12:8081/aaip-wms/video/queryeventbyid",data=json.dumps({"id":41579,"page":None,"size":None}))
print(rep2.text)

#sessions.py Session.session()and Session.request
s=requests.session()
rep3=s.request(method="post",url="http://10.10.119.12:8081/aaip/video/queryeventbyid",json=json.dumps({"id":41579,"page":None,"size":None}),headers=hd)
print(rep3.text)
"""
api.py
# By using the 'with' statement we are sure the session is closed, thus we
# avoid leaving sockets open which can trigger a ResourceWarning in some
# cases, and look like a memory leak in others.
def request(method, url, **kwargs):
with sessions.Session() as session:
return session.request(method=method, url=url, **kwargs)

sessions.py

class Session(object):

def __init__(self):
pass

def request(self,method, url,
params=None, data=None, headers=None, cookies=None, files=None,
auth=None, timeout=None, allow_redirects=True, proxies=None,
hooks=None, stream=None, verify=None, cert=None, json=None):
...
...
return resp

def session(self):
#返回一个实例化对象
return Session()
"""