import subprocess

class Bar:
  def foo(self):
    fout=subprocess.Popen("echo meep.", shell=True, stdout=subprocess.PIPE).stdout
    self.output = fout.readlines()
	    
    if self.output != []:
      for line in self.output:
        print line,

    fout.close()

b = Bar()
b.foo()
b.foo()
b.foo()