def p_assign4(p):
'''assign : commalist_expr EQ commalist_expr
'''
p[0] = Node('Assign')
p[0].target =Node('tuple')
p[0].target.elems =p[1].elems
p[0].value =Node('tuple')
p[0].value.elems =p[3].elems
def p_foreach(p):
'''foreach : FOR IDENTIFIER IN expr block
| FOR vdef IN expr block
'''
p[0] = Node('Foreach')
p[0].iter = p[2]
p[0].target = p[4]
p[0].body = p[5].body
def p_assign5(p):
'''assign : commalist_expr EQ expr
'''
p[0] = Node('Assign')
p[0].target = p[1]
p[0].value = p[3]
def p_assign3(p):
'''assign : unary_expr EQ expr
'''
p[0] = Node('Assign')
p[0].target = p[1]
p[0].value = p[3]
def p_assign2(p):
'''assign : vdef EQ expr
'''
p[0] = Node('Assign')
p[0].target = p[1]
p[0].value = p[3]
