将这段程序改为python

下面是将这段代码转换为Python的示例：

import cv2

def hough_angle(image):
    lines = []
    
    # 检测直线，如果lines为空，则重新进行检测
    lines = cv2.HoughLines(image, 1, cv2.CV_PI / 180, 200, None, 0, 0)
    if lines is None:
        lines = cv2.HoughLines(image, 1, cv2.CV_PI / 180, 150, None, 0, 0)
    
    if lines is None:
        print("没有检测到直线！")
        return None
    
    print("霍夫直线数量：", len(lines))
    
    linemat = image.copy()
    
    # 绘制直线
    for line in lines:
        rho = line[0][0]
        theta = line[0][1]
        a = np.cos(theta)
        b = np.sin(theta)
        x0 = a * rho
        y0 = b * rho
        pt1 = (int(x0 + 1000 * (-b)), int(y0 + 1000 * a))
        pt2 = (int(x0 - 1000 * (-b)), int(y0 - 1000 * a))
        cv2.line(linemat, pt1, pt2, (255, 0, 0), 3, cv2.LINE_AA)
    
    # 计算角度
    theta = lines[0][0][1]
    angelD = 180 * theta / cv2.CV_PI - 90
    
    return linemat, angelD

请注意，这只是一个示例，可能需要根据代码上下文进行适当的修改和调整。同时，确保你已经导入了必要的库，例如cv2和numpy。