# Installing

## Requirements

- Python 2.5 or later (Python 3 not supported yet)
- libmemcached 0.32 or later (last test with 1.0.18)
- zlib (required for compression support)
- libsasl2 (required for authentication support)

## Building

Like any Python package, use `setup.py`:

    $ python setup.py install --with-libmemcached=/opt/local

You only need to specify `--with-libmemcached` if libmemcached is not available on your C compiler’s include and library path. This is the case if you use MacPorts or something like that.

So for example, if one were to use MacPorts to install libmemcached, your libmemcached would end up in `/opt/local`, hence `--with-libmemcached=/opt/local`.

### From PyPI

Since `pip` doesn’t support passing arguments to the setup script, you can also define environment variables:

    LIBMEMCACHED=/opt/local pip install pylibmc