requests-cache-latest 0.4.12

Persistent cache for requests library

requests-cache

Requests-cache is a transparent persistent cache for requests (version >= 1.1.0) library.

Usage example

Just write:

import requests
import requests_cache

requests_cache.install_cache('demo_cache')

And all responses with headers and cookies will be transparently cached to demo_cache.sqlite database. For example, following code will take only 1-2 seconds instead of 10, and will run instantly on next launch:

for i in range(10):
    requests.get('http://httpbin.org/delay/1')

It can be useful when you are creating some simple data scraper with constantly changing parsing logic or data format, and don’t want to redownload pages or write complex error handling and persistence.

Note

requests-cache ignores all cache headers, it just caches the data for the time you specify.

If you need library which knows how to use HTTP headers and status codes, take a look at httpcache and CacheControl.

Links

• Documentation at readthedocs.org

• Source code and issue tracking at GitHub.

• Working example at Real Python.

History

0.4.12 (2016-02-12)

• Increment version to satisfy PyPi

0.4.11 (2016-02-12)

• Ability to force removal of expired entries

0.4.10 (2015-04-28)

• Better transactional handling in sqlite #50, thanks to @rgant

• Compatibility with streaming in requests >= 2.6.x

0.4.9 (2015-01-17)

• expire_after now also accepts timedelta, thanks to @femtotrader

• Added Ability to include headers to cache key (include_get_headers option)

• Added string representation for CachedSession

0.4.8 (2014-12-13)

• Fix bug in reading cached streaming response

0.4.7 (2014-12-06)

• Fix compatibility with Requests > 2.4.1 (json arg, response history)

0.4.6 (2014-10-13)

• Monkey patch now uses class instead lambda (compatibility with rauth)

• Normalize (sort) parameters passed as builtin dict

0.4.5 (2014-08-22)

• Requests==2.3.0 compatibility, thanks to @gwillem

0.4.4 (2013-10-31)

• Check for backend availability in install_cache(), not at the first request

• Default storage fallbacks to memory if sqlite is not available

0.4.3 (2013-09-12)

• Fix response.from_cache not set in hooks

0.4.2 (2013-08-25)

• Fix UnpickleableError for gzip responses

0.4.1 (2013-08-19)

• requests_cache.enabled() context manager

• Compatibility with Requests 1.2.3 cookies handling

0.4.0 (2013-04-25)

• Redis backend. Thanks to @michaelbeaumont

• Fix for changes in Requests 1.2.0 hooks dispatching

0.3.0 (2013-02-24)

• Support for Requests 1.x.x

• CachedSession

• Many backward incompatible changes

0.2.1 (2013-01-13)

• Fix broken PyPi package

0.2.0 (2013-01-12)

• Last backward compatible version for Requests 0.14.2

0.1.3 (2012-05-04)

• Thread safety for default sqlite backend

• Take into account the POST parameters when cache is configured with ‘POST’ in allowable_methods

0.1.2 (2012-05-02)

• Reduce number of sqlite database write operations

• fast_save option for sqlite backend

0.1.1 (2012-04-11)

• Fix: restore responses from response.history

• Internal refactoring (MemoryCache -> BaseCache, reduce_response and restore_response moved to BaseCache)

• connection option for MongoCache

0.1.0 (2012-04-10)

• initial PyPI release