Q: What if I can 'pip install' visualdl but cannot find the module while running it?

A: It could be due to the mismatch of the locations from 'python' and 'pip'. For example, a user could install visualdl here:

[develop]$ pip show visualdl
Name: visualdl
Version: 1.0.0
Summary: Visualize Deep Learning
Home-page: UNKNOWN
Author: PaddlePaddle and Echarts team
Author-email: UNKNOWN
License: Apache License
Location: /usr/local/lib/python2.7/site-packages
Requires: Flask, Pillow, numpy, protobuf, scipy

But his/her python is actually here:

[develop]$ which python
/Library/Frameworks/Python.framework/Versions/2.7/bin/python

So when running visualdl, the system would look for the visualdl command in 2.7/lib/python2.7/site-packages/

One hacky solution is to simply copy the installed files at the pip location to the python location:

cp -r /usr/local/lib/python2.7/site-packages/visualdl /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/

A more stable suggestion is to use Anaconda's virtual environment and its python to do the installation.

Q: I got an 'Abort trap : 6' error while running visualdl, how to fix it?

A: It is because the system cannot find where 'visualdl' is. If you type python -c 'import visualdl', it should give you a module-not-found error. Try to setup visualdl locally from a conda environment. After installing, pip show visualdl should show something like below:

Name: visualdl
Version: 1.0.0
Summary: Visualize Deep Learning
Home-page: UNKNOWN
Author: PaddlePaddle and Echarts team
Author-email: UNKNOWN
License: Apache License
Location: /Users/<username>/anaconda2/envs/conda_vdl/lib/python2.7/site-packages
Requires: Pillow, protobuf, Flask, scipy, numpy

In this case, the 'visualdl' command should be able to be found.