#AttributeError: 'FigureCanvasInterAgg' object has no attribute 'tostring_rgb'. Did you mean: 'tostring_argb'? #import matplotlib.pyplot as plt #======================== # This can be work # import matplotlib # matplotlib.use('TkAgg') # import matplotlib.pyplot as plt #========================= with open('notebook.txt', encoding='utf-8') as file: # contents = file.read() # print(contents) # for line in file: # print('line:', line) contents = file.readlines() print(contents) newList = [] for content in contents: newContent = content.replace('\n', '') money = newContent.split(':')[-1] newList.append(int(money)) # 6月: 9000 # contents = content.replace('\n', '') print(newList) x = [1, 2, 3, 4, 5, 6] y = newList plt.plot(x, y, 'r') plt.xlabel('month') plt.ylabel('money') plt.legend() plt.show()  1月: 7000 2月: 10000 3月: 15000 4月: 12000 5月: 13000 6月: 9000  I am learning to draw graphs with matplotlib, but import matplolib.plylot as plt does not recognize the data. I have pip installed matplotlib, but I suspect it is not installed in the right path. Is there any way to solve this problem?
The following code runs successfully on my computer, and my maplotlib verson is 3.7.1 if you don't know your matplotlib verson,you can press "ctrl" and 'r',then input "cmd" to open the terminal,and input "pip list",then you can find your matlotlib version import matplotlib.pyplot as plt from matplotlib import rcParams # 设置支持中文字体 rcParams['font.sans-serif'] = ['SimHei'] # 使用黑体 rcParams['axes.unicode_minus'] = False # 正常显示负号 with open('notebook.txt', encoding='utf-8') as file: contents = file.readlines() # 按行读取文件内容 newList = [] for content in contents: newContent = content.replace('\n', '') # 去掉换行符 money = newContent.split(':')[-1].strip() # 提取“:”后面的金额部分并去掉空格 newList.append(int(money)) x = [1, 2, 3, 4, 5, 6] plt.plot(x, newList, 'r', label='收入') # 绘制红色折线图，并设置图例标签 plt.xlabel('月份') # 设置 x 轴标签 plt.ylabel('金额') # 设置 y 轴标签 plt.legend() # 显示图例 plt.show() # 展示图形  