可以在Google App Engine上使用Python Requests库吗？

Question

我可以在Google App Engine上使用请求吗？我认为这个库非常适合创建REST客户端.

Answer 1

安装requests-toolbelt库:https: //github.com/sigmavirus24/requests-toolbelt

对于App Engine,它可能是这样的: pip install requests-toolbelt -t lib

(参见:https://cloud.google.com/appengine/docs/python/tools/using-libraries-python-27#installing_a_library)

然后加:

from requests_toolbelt.adapters import appengine
appengine.monkeypatch()

在你main.py或同等中.

编辑:此解决方案现在是官方文档的一部分:https://cloud.google.com/appengine/docs/python/issue-requests#issuing_an_http_request (在REQUESTS标签中)

Answer 2

是.在谷歌的AppEngine(1.9.18版本)请求 版本2.3.0工程生产(但不是在SDK),如果你有计费启用,这使得插座的支持.

更新:截至2017年1月31日,Requests正在生产中,版本为2.9.1.但是,它不适用于Google Cloud SDK 141.0.0

Appengine SDK上的请求因所有https://请求而失败:

  ConnectionError: ('Connection aborted.', error(13, 'Permission denied'))

请求版本2.4.1在生产中失败:

  File "distlib/requests/adapters.py", line 407, in send
    raise ConnectionError(err, request=request)
  ConnectionError: ('Connection aborted.', error(13, 'Permission denied'))

请求版本2.5.1在生产中失败:

  File "distlib/requests/adapters.py", line 415, in send
    raise ConnectionError(err, request=request)
  ConnectionError: ('Connection aborted.', error(13, 'Permission denied'))

请求版本2.3.0在生产中工作,但可能会导致Debian中的问题被删除SDK中的SSLv3支持(请求2.3.0带有它自己现在过时的urllib3).作为解决方法,可以在请求的urllib3副本的源中删除包含PROTOCOL_SSLv3的行.

  'module' object has no attribute 'PROTOCOL_SSLv3'

有关套接字支持的信息:https://cloud.google.com/appengine/docs/python/sockets/

Answer 3

尚未,但希望很快.正在开展对GAE的支持 - 请参阅问题#498(App Engine修复).

请使用urllib3又使用httplib的这是支持GAE作为一个包装网址抓取API.虽然urllib3使用一些GAE没有可用的模块,这种用法故意制造可选,这样urllib3可以在GAE上使用.

Answer 4

现在这是可能的,我在appengine_config.py中使用这种变通办法的组合工作:

# Step 1: first add requests and requests-toolbelt to your requirements.txt (or however you install them via pip)
# Step 2: in appengine_config.py add the following snippet:

# see https://cloud.google.com/appengine/docs/python/issue-requests#issuing_an_http_request
import requests
import requests_toolbelt.adapters.appengine

# Use the App Engine Requests adapter. This makes sure that Requests uses
# URLFetch.
requests_toolbelt.adapters.appengine.monkeypatch()

# also monkey patch platform.platform() from https://code.google.com/p/googleappengine/issues/detail?id=12982
import platform

def patch(module):
    def decorate(func):
        setattr(module, func.func_name, func)
        return func
    return decorate


@patch(platform)
def platform():
    return 'AppEngine'