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# Installation

## Requirements

To run PyFFI’s graphical file editor QSkope, you need PyQt4.

## Using the Windows installer

Simply download and run the Windows installer.

## Manual installation

If you install PyFFI manually, and you already have an older version of PyFFI installed, then you must uninstall (see Uninstall) the old version before installing the new one.

### Installing via setuptools

If you have setuptools installed, simply run:

    easy_install -U PyFFI

at the command prompt.

### Installing from source package

First, get the source package. Untar or unzip the source package via either:

    tar xfvz PyFFI-x.x.x.tar.gz

or:

    unzip PyFFI-x.x.x.zip

Change to the PyFFI directory and run the setup script:

    cd PyFFI-x.x.x
    python setup.py install

## Uninstall

You can uninstall PyFFI manually simply by deleting the `pyffi` folder from your Python’s `site-packages` folder, which is typically at:

    C:\Python25\Lib\site-packages\pyffi

or:

    /usr/lib/python2.5/site-packages/pyffi

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