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USC-NSL / miniNExT

An extension layer that makes it easier to build complex networks in Mininet
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ImportError: No module named mininext.topo for " from mininext.topo import Topo" #13

Open deegopi opened 8 years ago

deegopi commented 8 years ago

Hi All,

In my code similar to mininet I have written the import as "from mininext.topo import Topo" and I get the following error Traceback(most recent call last) File "example/16router/start.py" ,line 10 ,in from mininext.topo import Topo ImportError: No module named mininext.topo

The similar fashion continues for "from mininext.net import MiniNExT" and "from mininet.net import Mininet"

Please if anyone knows the solution for the above error, kindly post it here.

Thanks for your help!!!

tambel2020 commented 7 years ago

Same problem here .... how and where to include mininet.topo package to python? The below code could not find mininet.topo package. from mininet.topo import Topo

TahaKhan1 commented 7 years ago

Make sure you are running mininet as root.

smlng commented 6 years ago

The mininet installer from the repo installs to /usr/local/lib which is not in PYTHONPATH, found it with find /usr/local -name "*mininet*". So, I started Python with

sudo PYTONPATH=/usr/local/lib/python2.7/dist-packages:$PYTHONPATH python

and then import mininet works.

paaguti commented 4 years ago

No more! in 2.3.0d6

student@student-VirtualBox:~/Devel$ sudo PYTHONPATH=/usr/local/lib/python2.7/dist-packages python
Python 2.7.15+ (default, Oct  7 2019, 17:39:04) 
[GCC 7.4.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import mininet
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "mininet.py", line 4, in <module>
    from mininet.topo import Topo
ImportError: No module named topo

Even more:

student@student-VirtualBox:~/Devel$ python
Python 2.7.15+ (default, Oct  7 2019, 17:39:04) 
[GCC 7.4.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> print environ['PYTHONPATH']
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'environ' is not defined
>>> print os.environ['PYTHONPATH']
/usr/local/lib/python2.7/dist-packages

So, setting PYTHONPATH in sudo makes little sense

codergezx commented 3 years ago

pip install mininet