獲取伺服器返回內容：

• Response Content

import requests

r = requests.get('https://api.github.com/events')
print(r.text[0:20])

[{"id":"7843224643",

import requests

r = requests.get('https://api.github.com/events')
print(r.encoding)
r.encoding = 'ISO-8859-1'
print(r.text[0:20])

• Binary Response Content

import requests

r = requests.get('https://www.baidu.com/img/bd_logo1.png', {'where':'super'})
print(r.status_code)
print(r.content)

上面的bytes其實是一個圖片，用PIL庫來bytes，然後顯示圖片

import requests

r = requests.get('https://www.baidu.com/img/bd_logo1.png', {'where':'super'})

from PIL import Image
from io import BytesIO

i = Image.open(BytesIO(r.content))
i.show()
 

• Json Response Content 

import requests

r = requests.get('https://api.github.com/events')
print(r.json())

Requests用內建的json()方法處理JSON 資料，如果沒有內容，返回204；

非JSON內容，則丟擲ValueError:No Json object could be decoded的異常。

用r.raise_for_status()或r.status_code來檢測request是否成功。

• Raw response content

加上"stream=True".

>>> r = requests.get('https://api.github.com/events', stream=True)

>>> r.raw
<urllib3.response.HTTPResponse object at 0x101194810>

>>> r.raw.read(10)
'\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\x03'

import requests
import os

r = requests.get('https://api.github.com/events', stream = True)

base_dir = os.path.dirname(__file__)
file_path = base_dir + '/file_raw.txt'
print(file_path)
with open(file_path, 'wb+') as fd:
    for chunk in r.iter_content(chunk_size=128):
        fd.write(chunk)

• Customer Headers:

如果需要給request加上http headers，傳入一個headers引數，引數是字典形式的

import requests

url = 'https://api.github.com/some/endpoint'
headers = {'user-agent': 'my-app/0.0.1'}

r = requests.get(url, headers=headers)

• 複雜的POST Requests

傳入字典引數，對於post，用'data='接受字典引數

import requests

payload = {'key1': 'value1', 'key2': 'value2'}
r = requests.post('http://httpbin.org/post', data=payload)
print(r.text)

C:\Python35\python.exe D:/pyjd/djanRestPro/api/tests.py
{"args":{},"data":"","files":{},"form":{"key1":"value1","key2":"value2"},"headers":{"Accept":"*/*","Accept-Encoding":"gzip, deflate","Connection":"close","Content-Length":"23","Content-Type":"application/x-www-form-urlencoded","Host":"httpbin.org","User-Agent":"python-requests/2.18.4"},"json":null,"origin":"111.175.192.105","url":"http://httpbin.org/post"}

傳入元組，也會被轉換為字典

import requests

payload = (('key1','value1'),('key1','value2'))
r = requests.post('http://httpbin.org/post', data=payload)
print(r.text)

C:\Python35\python.exe D:/pyjd/djanRestPro/api/tests.py
{"args":{},"data":"","files":{},"form":{"key1":"value1","key2":"value2"},"headers":{"Accept":"*/*","Accept-Encoding":"gzip, deflate","Connection":"close","Content-Length":"23","Content-Type":"application/x-www-form-urlencoded","Host":"httpbin.org","User-Agent":"python-requests/2.18.4"},"json":null,"origin":"111.175.192.105","url":"http://httpbin.org/post"}

傳入Json引數，注意這裡要用'json='接受引數

import requests

url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
r = requests.post(url, json=payload)

• 傳入檔案

>>> url = 'http://httpbin.org/post'
>>> files = {'file': open('report.xls', 'rb')}

>>> r = requests.post(url, files=files)
>>> r.text
{
  ...
  "files": {
    "file": "<censored...binary...data>"
  },
  ...
}

顯示的傳入檔案，content_type和headers

>>> url = 'http://httpbin.org/post'
>>> files = {'file': ('report.xls', open('report.xls', 'rb'), 'application/vnd.ms-excel', {'Expires': '0'})}

>>> r = requests.post(url, files=files)
>>> r.text
{
  ...
  "files": {
    "file": "<censored...binary...data>"
  },
  ...
}