Python导入自己的类出错

仅作记录。

random_walk.py

from random import choice

class Walk:

    def __init__(self,num_points=5000):
        self.num_points = num_points
        self.x_values = [0]
        self.y_values = [0]

    def fill_walk(self):
        while len(self.x_values) < self.num_points:

            x_direction = choice([1,-1])
            x_distance = choice([0,1,2,3,4])
            x_step = x_direction * x_distance

            y_direction = choice([1,-1])
            y_distance = choice([0,1,2,3,4])
            y_step = y_direction * y_distance

            if x_step == 0 and y_step == 0:
                continue
            
            x = self.x_values[-1]+ x_step
            y = self.y_values[-1]+ y_step

            self.x_values.append(x)
            self.y_values.append(y)

rw_visual.py

import matplotlib.pyplot as plt

from random_walk import Walk  #类名不要Random打头

rw = Walk()
rw.fill_walk()

plt.style.use('classic')
fig,ax = plt.subplots()
print(len(rw.x_values))
print(len(rw.y_values))
#ax.scatter(rw.x_values, rw.y_values, s=15)
#plt.show()

类名是Walk可以，但如果RandomWalk会报错，猜测和关键字Random开头相同有关。