如何用python解带边界条件的微分方程，其中哪一个是不等式

import numpy as np
from scipy.integrate import solve_bvp
import matplotlib.pyplot as plt

def fun(x, y):
    dydx = np.zeros_like(y)
    dydx[0] = y[1]  # y' = dy/dx
    dydx[1] = -y[0]  # y'' = -y
    return dydx

def bc(ya, yb):
    return np.array([ya[0] - 1, yb[0] - np.exp(1)])

x = np.linspace(0, 1, 5)  # 求解区间
y = np.zeros((2, x.size))  # 初始猜测

sol = solve_bvp(fun, bc, x, y)

x_plot = np.linspace(0, 1, 100)
y_plot = sol.sol(x_plot)[0]
plt.plot(x_plot, y_plot)
plt.xlabel('x')
plt.ylabel('y')
plt.title('Solution of the differential equation')
plt.show()