我刚刚开始一个图形讲座，想要玩python2.7，因为我们的讲座需要这个。
我们被要求安装https://conda.io/miniconda.html的miniconda发行版 然后使用conda
安装更多库现在我有以下导入：
import math
import numpy as np
import mayavi.mlab as mlab
import pickle
和这个功能：
def trimesh(F, V, new_figure=True):
x = V[:,0]
y = V[:,1]
z = V[:,2]
mlab.triangular_mesh(x, y, z, F)
if new_figure:
mlab.figure()
至于现在似乎行mlab.triangular_mesh()给了我一个问题。
我的PyCharm控制台出现以下错误：
Traceback (most recent call last):
File "/Users/ronaldbrenner/PycharmProjects/untitled/transformation.py", line 50, in <module>
trimesh(F, V)
File "/Users/ronaldbrenner/PycharmProjects/untitled/transformation.py", line 26, in trimesh
mlab.triangular_mesh(x, y, z, F)
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/helper_functions.py", line 37, in the_function
return pipeline(*args, **kwargs)
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/helper_functions.py", line 77, in __call__
scene = tools.gcf().scene
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/figure.py", line 113, in gcf
engine = get_engine()
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 101, in get_engine
return self.new_engine()
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 146, in new_engine
check_backend()
File "/Users/ronaldbrenner/miniconda2/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 49, in check_backend
''')
ImportError: Could not import backend for traits
_______________________________________________________________________________
Make sure that you have either the TraitsBackendWx or the TraitsBackendQt
projects installed. If you installed Mayavi with easy_install, try
easy_install <pkg_name>. easy_install Mayavi[app] will also work.
If you performed a source checkout, be sure to run 'python setup.py install'
in Traits, TraitsGUI, and the Traits backend of your choice.
Also make sure that either wxPython or PyQT is installed.
wxPython: http://www.wxpython.org/
PyQT: http://www.riverbankcomputing.co.uk/software/pyqt/intro
Process finished with exit code 1
我在macOS 10.13上使用python2.7 这是我的conda.info输出：
Current conda install:
platform : osx-64
conda version : 4.3.30
conda is private : False
conda-env version : 4.3.30
conda-build version : not installed
python version : 2.7.13.final.0
requests version : 2.14.2
root environment : /Users/ronaldbrenner/miniconda2 (writable)
default environment : /Users/ronaldbrenner/miniconda2
envs directories : /Users/ronaldbrenner/miniconda2/envs
/Users/ronaldbrenner/.conda/envs
package cache : /Users/ronaldbrenner/miniconda2/pkgs
/Users/ronaldbrenner/.conda/pkgs
channel URLs : https://repo.continuum.io/pkgs/main/osx-64
https://repo.continuum.io/pkgs/main/noarch
https://repo.continuum.io/pkgs/free/osx-64
https://repo.continuum.io/pkgs/free/noarch
https://repo.continuum.io/pkgs/r/osx-64
https://repo.continuum.io/pkgs/r/noarch
https://repo.continuum.io/pkgs/pro/osx-64
https://repo.continuum.io/pkgs/pro/noarch
config file : None
netrc file : None
offline mode : False
user-agent : conda/4.3.30 requests/2.14.2 CPython/2.7.13 Darwin/17.0.0 OSX/10.13
UID:GID : 501:20
我希望有人可以帮助我，因为我对python不是很有经验。或者是否有人遇到过类似的问题？
先致谢谢，并致以诚挚的问候， 罗纳德