I have this partial differential equation ut=0; with this boundary condition: u(x,0)=x
and I want to solve it with pdsolve in python
from sympy import *
from sympy.abc import x, t # x and y are the independent variables
u = Function("u")(x, t)
initial_condition = u0.subs(t, 0) - x
pde = Eq((u0.diff(t), 0))
boundary_conditions = [Eq(u.subs(x, 0), x)]
solution = pdsolve(pde, u, boundary_conditions)
I wrote this code but then I received this error
typeError: can only concatenate str (not "list") to str
How to use boundary condition to solve PDE equation