Simplified rpi detection

from openflexure_microscope.api.views import MicroscopeView

import subprocess

import io

import os

from sys import platform

    """

    Checks if Raspberry Pi.

    """

    try:

        with io.open('/proc/cpuinfo', 'r') as cpuinfo:

            found = False

            for line in cpuinfo:

                if line.startswith('Hardware'):

                    found = True

                    label, value = line.strip().split(':', 1)

                    value = value.strip()

                    if value not in (

                        'BCM2708',

                        'BCM2709',

                        'BCM2835',

                        'BCM2836'

                    ):

                        if raise_on_errors:

                            raise ValueError(

                                'This system does not appear to be a '

                                'Raspberry Pi.'

                            )

                        else:

                            return False

            if not found:

                if raise_on_errors:

                    raise ValueError(

                        'Unable to determine if this system is a Raspberry Pi.'

                    )

                else:

                    return False

    except IOError:

        if raise_on_errors:

            raise ValueError('Unable to open `/proc/cpuinfo`.')

        else:

            return False

    # I mean, if it works, it works...

    return os.path.exists("/usr/bin/raspi-config")

    return True

class ShutdownAPI(MicroscopeView):

    """