def test_reset_dhist():
 _ip.run_cell('tmp = [d for d in _dh]')
 _ip.magic(('cd ' + os.path.dirname(nt.__file__)))
 _ip.magic('cd -')
 nt.assert_true((len(_ip.user_ns['_dh']) > 0))
 _ip.magic('reset -f dhist')
 nt.assert_equal(len(_ip.user_ns['_dh']), 0)
 _ip.run_cell('_dh = [d for d in tmp]')

def test_reset_dhist ( ) : _ip . run_cell ( 'tmp = [d for d in _dh]' ) _ip . magic ( ( 'cd ' + os . path . dirname ( nt . __file__ ) ) ) _ip . magic ( 'cd -' ) nt . assert_true ( ( len ( _ip . user_ns [ '_dh' ] ) > 0 ) ) _ip . magic ( 'reset -f dhist' ) nt . assert_equal ( len ( _ip . user_ns [ '_dh' ] ) , 0 ) _ip . run_cell ( '_dh = [d for d in tmp]' )
test %reset dhist magic .