AttributeError: 'Images' object has no attribute 'pop'

Question

我正在使用这段代码，所以我的主要代码在这里：

from draw_image import Images
start = Images()
start.display_image()
start.delete_line()
start.display_image()

这是我的 draw_image 代码：

class Images:

def image(jumper_image):
    """This function is to create the list"""
    jumper_image = []

def display_image(jumper_image):
    """This is how the user will see the image correctly through the loop"""
    jumper_image = [
        "    ___    ",
        "   /___\   ",
        "   \   /   ",
        "    \ /    ",
        "     o     ",
        "    /|\    ",
        "    / \    ",
        "           ",
        "^^^^^^^^^^^"
        ]  
    for image in jumper_image:
        print(image) 
    return jumper_image

def delete_line(jumper_image):
    """ This function is supposed to delete the first line of the jumper_image"""
    jumper_image.pop(0)

似乎 delete_line 功能无法识别列表，你们知道为什么会这样吗？或者这个问题的解决方案是什么？

Answer 1

我建议使用 python 构造函数来初始化 jumper_image:

class Images:

  def __init__(self):
    self.jumper_image = [
        "    ___    ",
        "   /___\   ",
        "   \   /   ",
        "    \ /    ",
        "     o     ",
        "    /|\    ",
        "    / \    ",
        "           ",
        "^^^^^^^^^^^"
        ] 

  def display_image(self):
    """This is how the user will see the image correctly through the loop"""

    for image in self.jumper_image:
        print(image) 

  def delete_line(self):
    """ This function is supposed to delete the first line of the jumper_image"""
        self.jumper_image.pop(0)

start = Images()
start.display_image()
start.delete_line()
print('After deleting first value in list\n')
start.display_image()

    ___    
   /___\   
   \   /   
    \ /    
     o     
    /|\    
    / \    
           
^^^^^^^^^^^
After deleting first value in list

   /___\   
   \   /   
    \ /    
     o     
    /|\    
    / \    
           
^^^^^^^^^^^

AttributeError: 'Images' object has no attribute 'pop'

AttributeError: 'Images' object has no attribute 'pop'

python

string

class

list

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