old_contents: import subprocess 
  
  def onPi():
    uname_m = subprocess.Popen(["uname", "-m"], stdout = subprocess.PIPE, stderr = subprocess.STDOUT).communicate()[0]
    return uname_m == "armv6l"
  
new_contents: import subprocess 
  
  def onPi():
    uname_m = subprocess.Popen(["uname", "-m"], stdout = subprocess.PIPE, stderr = subprocess.STDOUT).communicate()[0]
    return uname_m.strip() == "armv6l"
  
subject: check if on pi correctly-ier