python runtime_error ai_generated true

AttributeError: 'FigureCanvasAgg' 对象没有属性 'tostring_rgb'

AttributeError: 'FigureCanvasAgg' object has no attribute 'tostring_rgb'

ID: python/matplotlib-tostring-rgba-deprecated

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80%修复率
88%置信度
0证据数
2024-12-20首次发现

版本兼容性

版本状态引入弃用备注
3.10 active — — —

根因分析

Matplotlib 3.10 移除了 canvas 对象上已弃用的 tostring_rgb / tostring_argb 方法。

English

Matplotlib 3.10 removed the deprecated tostring_rgb / tostring_argb methods from canvas objects.

generic

解决方案

  1. 94% 成功率 
    canvas.draw()
buf = canvas.buffer_rgba()
import numpy as np
arr = np.asarray(buf)  # (H, W, 4) uint8
  2. 92% 成功率 
    from io import BytesIO
import numpy as np
from PIL import Image
buf = BytesIO()
fig.savefig(buf, format='png')
buf.seek(0)
arr = np.array(Image.open(buf))

无效尝试

常见但无效的做法:

  1. 70% 失败

    Pins the project to an unsupported version and breaks other dependencies that require 3.10+.

  2. 75% 失败

    Returns None and then the downstream code raises a different error.