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python - Imageio 找不到枕头

问题描述

我尝试在http://ndres.me/post/matplotlib-animated-gifs-easily/上运行示例：

import matplotlib
import matplotlib.pyplot as plt
import numpy as np
import imageio

def plot_for_offset(power, y_max):
    # Data for plotting
    t = np.arange(0.0, 100, 1)
    s = t**power

    fig, ax = plt.subplots(figsize=(10,5))
    ax.plot(t, s)
    ax.grid()
    ax.set(xlabel='X', ylabel='x^{}'.format(power),
           title='Powers of x')

    # IMPORTANT ANIMATION CODE HERE
    # Used to keep the limits constant
    ax.set_ylim(0, y_max)

    # Used to return the plot as an image rray
    fig.canvas.draw()       # draw the canvas, cache the renderer
    image = np.frombuffer(fig.canvas.tostring_rgb(), dtype='uint8')
    image  = image.reshape(fig.canvas.get_width_height()[::-1] + (3,))

    return image

kwargs_write = {'fps':1.0, 'quantizer':'nq'}
imageio.mimsave('./powers.gif', [plot_for_offset(i/4, 100) for i in range(10)], fps=1)

当我运行它时，Python 告诉我 Pillow 有问题：

RuntimeError: Imageio Pillow 插件需要 Pillow 库。

Pillow 安装在我的电脑上，作为打字

>pip install pillow

返回

已满足要求：c:\python27\lib\site-packages (2.8.2) 中的枕头

需要什么Imageio？

标签： pythonpackageruntime-errorpython-imaging-librarypython-imageio

解决方案

我认为您安装了多个 python，并且您的 pip 将枕头安装到不同的 python 位置。

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