python画图-ValueError: The TextBackend supports only expressions over a 1D range
想用python画一下函数图:fromsympy.parsing.sympy_parserimportparse_expr
fromsympyimportplot_implicit
exc=lambdaexper:plot_implicit(parse_expr(exper))
exc('x**2+(y-x**(2/3))**2-1')
结果报错:ValueError:TheTextBacken