(b_or_x, arg1, cwd=None)
call dpkg-source -b|x arg1 [arg2]
call dpkg-source -b|x arg1 [arg2]
call dpkg - source - b|x arg1 [ arg2 ]
def dpkg_source(b_or_x, arg1, cwd=None):
    "call dpkg-source -b|x arg1 [arg2]"
    assert b_or_x in ['-b', '-x']
    args = ['/usr/bin/dpkg-source', b_or_x, arg1]
    process_command(args, cwd=cwd)
def dpkg_source ( b_or_x , arg1 , cwd = None ) : assert b_or_x in [ '-b' , '-x' ] args = [ '/usr/bin/dpkg-source' , b_or_x , arg1 ] process_command ( args , cwd = cwd )