File _constraints of Package pypy3

<constraints>
  <hardware>
    <physicalmemory>
      <!-- Actually we only need >4G on x86_64, 2G should be sufficient on 32-bit machines -->
      <size unit="G">8</size>
    </physicalmemory>
    <disk>
    	<size unit="G">30</size>
    </disk>
  </hardware>
  <overwrite>
    <conditions>
      <arch>i586</arch>
      <arch>x86_64</arch>
    </conditions>
    <hardware>
      <cpu>
        <flag>sse2</flag>
      </cpu>
    </hardware>
  </overwrite>
</constraints>