Fido is now RETIRED, meaning that it will no longer be updated. Please consider using other libraries such as aiohttp.

Fido is a simple, asynchronous HTTP client built on top of Crochet and Twisted with an implementation inspired by the book "Twisted Network Programming Essentials". It is intended to be used in environments where there is no event loop, and where you cannot afford to spin up lots of threads (otherwise you could just use a ThreadPoolExecutor).

Here is an example of using Fido:

future = fido.fetch('http://www.example.com')
# Work happens in a background thread...
response = future.wait(timeout=2)
print(response.body)

Yes, although this has not been vetted by security professionals. One should use this functionality at their own risk. In more detail: Fido uses the Twisted defaults, which delegate to pyOpenSSL and service_identity for the actual TLS work.

Note that to get this you need to install the tls extra:

$ pip install --upgrade fido[tls]

Probably not. However, it is currently very simple, so it shouldn't be hard to upgrade code if there's a non backwards-compatible change.

No, crochet.setup is automatically invoked by fido.fetch.

Just set the http_proxy (all lowercase) environment variable to the URL of the http proxy before starting your python process.

Example:

$ export http_proxy="http://localhost:8000"
$ python -c 'import fido; print(fido.fetch("http://www.example.com").wait().body)'

Fido can be installed using pip install, like so:

$ pip install --upgrade fido

If you want TLS capabilities:

$ pip install --upgrade fido[tls]

Copyright (c) 2015, Yelp, Inc. All rights reserved. Apache v2