小编Adr*_*aan的帖子

在 Windows 10 下，我正在尝试运行包含该行的 Python 脚本

from mayavi import mlab

因此我试图通过运行来安装 Mayavi

pip install mayavi

从 Windows PowerShell。然后我得到

Collecting mayavi
  Using cached https://files.pythonhosted.org/packages/83/9e/293ba57353ed258c2f64d54bf00ca1447c1f38f4eb60d0e762ddec57bf51/mayavi-4.6.2.tar.bz2
Collecting apptools (from mayavi)
  Using cached https://files.pythonhosted.org/packages/78/84/64764e2c87fcb7ad7521bdabc7c44c109b80691f94218cbddd5df2ee682c/apptools-4.4.0.tar.bz2
Collecting envisage (from mayavi)
  Using cached https://files.pythonhosted.org/packages/ea/2a/7efcd2c44a638a5e3e65e39f7e5bd4cf952ef4ffc71768730cf19fef1e4e/envisage-4.7.0-py3-none-any.whl
Requirement already satisfied: numpy in c:\users\adria\appdata\local\programs\python\python37-32\lib\site-packages (from mayavi) (1.15.4)
Collecting pyface>=6.0.0 (from mayavi)
  Using cached https://files.pythonhosted.org/packages/45/fe/7150742f7053cb5082f15704c064a5c683f42dfc00411ce173287651e33a/pyface-6.0.0.tar.gz
Collecting pygments (from mayavi)
  Using cached https://files.pythonhosted.org/packages/13/e5/6d710c9cf96c31ac82657bcfb441df328b22df8564d58d0c4cd62612674c/Pygments-2.3.1-py2.py3-none-any.whl
Collecting traits>=4.6.0 (from mayavi)
  Using cached https://files.pythonhosted.org/packages/56/47/03f50e82e1ff1e8a602c5f2cf12f08675f79a7169629fe4ce521e59d265f/traits-4.6.0.tar.bz2
Collecting traitsui>=6.0.0 (from mayavi)
  Using cached https://files.pythonhosted.org/packages/f2/06/3ad35a78e1ca82d762e2d9ffe9ed6c9dd405caa340066052d7ec186b9b1b/traitsui-6.0.0.tar.gz
Collecting vtk (from mayavi)
  Could not …

在Mayavi中，我想在下图中看到轴的网格

# Source: <<https://scicomp.stackexchange.com/a/23148/10048>>.
import numpy as np
from mayavi import mlab

# Test data: Matlab `peaks()`
x, y = np.mgrid[-3:3:50j, -3:3:50j]
z = 3*(1 - x)**2 * np.exp(-x**2 - (y + 1)**2) \
   - 10*(x/5 - x**3 - y**5)*np.exp(-x**2 - y**2) \
   - 1./3*np.exp(-(x + 1)**2 - y**2) 

mlab.figure(bgcolor=(1, 1, 1))  # Make background white.
surf = mlab.surf(x, y, z, colormap='RdYlBu', warp_scale=0.3, representation='wireframe', line_width=0.5)
mlab.outline(color=(0, 0, 0))
axes = mlab.axes(color=(0, 0, 0), nb_labels=5)
axes.title_text_property.color = (0.0, 0.0, 0.0)
axes.title_text_property.font_family …

我有一个ffmpeg_list_of_files.txt包含内容的文件

file \'.\\Output_0\\forces_vs_radii.pdf\'\nfile \'.\\Output_1\\forces_vs_radii.pdf\'\nfile \'.\\Output_2\\forces_vs_radii.pdf\'\nfile \'.\\Output_3\\forces_vs_radii.pdf\'\nfile \'.\\Output_4\\forces_vs_radii.pdf\'\nand so on...\n

然后ffmpeg -f concat -i ffmpeg_list_of_files.txt -c copy output.mkv按照如下所述运行

http://trac.ffmpeg.org/wiki/Concatenate

不幸的是，我得到了错误

Line 1: unknown keyword \'\xc2\xa0\xe2\x96\xa0f\'\n.\\ffmpeg_list_of_files.txt: Invalid data found when processing input\n

在 Windows 10 中的 Windows PowerShell 中。

我究竟做错了什么？

有没有办法在 Python 的类级别获取类的名称？

最低工作示例：

class TestClass:

    print("We are now in the class {} at class level".format(WHAT SHOULD I PUT HERE?))  # Should return "We are now in the class TestClass at class level"
    pass