Error "ImportError: no module named mux" in Python

Question

I installed a module one month ago. At that time, I could import the module successfully.

Now, when I import this module, there is an ImportError,

>>> import anuga
Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
    File "/home/lili/anuga_core/source/anuga/__init__.py", line 110, in <module> from anuga.file_conversion.urs2nc import urs2nc
    File "/home/lili/anuga_core/source/anuga/file_conversion/urs2nc.py", line 12, in <module>
        from mux import WAVEHEIGHT_MUX_LABEL, EAST_VELOCITY_LABEL, \
    ImportError: No module named mux

How could I solve this problem?

Look for a file named mux.py. In what directory is it located? — unutbu, Jan 28 '13 at 11:43
did you updated python to a more recent version in the meantime? — furins, Jan 28 '13 at 11:49
Have you gone through the Anuga installation guide (http://anuga.anu.edu.au/raw-attachment/wiki/WikiStart/anuga_installation_guide-1.2.1.pdf)? If you're using Windows there's a step that involves adding values to the PATH environment variable in the appendix. — Talvalin, Jan 28 '13 at 11:53
I use Ubuntu,I didn't find mux.py file.And I also finished to update the anuga model. DO you think it is the problem of Python? Now I am wondering if it is the problem of Python rather than Anuga.@Talvalin@furins@unutbu — facebook-100003196165797, Jan 28 '13 at 14:36
Should this be tagged with ANUGA? Reference for [ANUGA](https://pypi.org/project/anuga/#id2). — Peter Mortensen, Jun 07 '22 at 11:56

score 1 · Accepted Answer · edited Jun 07 '22 at 11:52

ImportError comes only when the module is not available in the list called sys.path. Since the current operating system is Linux based (I got an idea from the error message /home/lili), it is required to have mux.py in the path (i.e, sys.path). The mux.py file will be exactly similar to the file available in this link.

`https://anuga.anu.edu.au/svn/anuga/trunk/anuga_core/source/anuga/file/mux.py`

All these problems come when the installation of ANUGA is not proper.

Error "ImportError: no module named mux" in Python

1 Answers1