Bytes are immutable in python, which means that repeatedly appending
to them is _quadratic_ in time.  That is, we would like and expect
that deleting 10k objects 10 times would take about as long as
deleting 100k, but because we repeatedly concatenate to a bytes object
in the loop, they are not:

    timeit.timeit(lambda: server.delete_multi(["foo"]*10000),number=10)
    # 0.5087270829999966
    timeit.timeit(lambda: server.delete_multi(["foo"]*100000),number=1)
    # 10.650619775999985

Switch to using `bytearray` in all places which handle variable
numbers of bytes.  After this change:

    timeit.timeit(lambda: server.delete_multi(["foo"]*10000),number=10)
    # 0.1197161969999998
    timeit.timeit(lambda: server.delete_multi(["foo"]*100000),number=1)
    # 0.1269589350000011

The protocol implements `default` and `time` arguments, but those
are not exposed in the client class implementation.

This adds those fields.

Bump pygments from 2.2.0 to 2.7.4 in /docs

Bumps [pygments](https://github.com/pygments/pygments) from 2.2.0 to 2.7.4.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](https://github.com/pygments/pygments/compare/2.2.0...2.7.4

)

Signed-off-by: dependabot[bot] <support@github.com>

chore: move CI to GH

* Implement Protocol.__str__ for real consistent hashing + test

Add ability to return default value on get but breaking get's API

set_multi: Return a list of keys that failed to be set

This is an API change, but is required for compatibility with Django.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

get_multi: Support an arbitrary collection of keys, not just a list

Add missing files to docs.

This is required for compatibility with Django.  Also fix an
IndexError if keys is empty.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

By building the dictionary in two steps rather than one, we can avoid
the complicated test for whether to decode the keys to strings.  This
also reduces the running time from quadratic to linear.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

On Python 2, '' is the same as b'' anyway.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

Adding the mixin and the distributed modules to the docs.

Signed-off-by: Moisés Guimarães de Medeiros <moguimar@redhat.com>

TLS tests requires a TLS enabled memcached server. In order to get
one, you must compile memcached with `--enable-tls`