Python 2.7과 3 간의 비호환성

Mininet-wifi를 설치하려고 하는데 안타깝게도 설치가 되지 않습니다

이것이 내 Ubuntu 가상 머신에 나타나는 방식입니다. 저는 Python 3.7.1을 사용하고 있습니다.

aristide@ubuntu:~/mininet-wifi$ sudo util/install.sh -Wlnfv
[sudo] password for aristide: 
Detected Linux distribution: Ubuntu 16.04 xenial i386
Ubuntu
python is version 2
Installing Mininet-WiFi dependencies
Reading package lists... Done
Building dependency tree       
Reading state information... Done
make is already the newest version (4.1-6).
pkg-config is already the newest version (0.29.1-0ubuntu1).
rfkill is already the newest version (0.5-1ubuntu3).
wireless-tools is already the newest version (30~pre9-8ubuntu1).
libnl-genl-3-dev is already the newest version (3.2.27-1ubuntu0.16.04.1).
libssl-dev is already the newest version (1.0.2g-1ubuntu4.12).
libnl-3-dev is already the newest version (3.2.27-1ubuntu0.16.04.1).
patch is already the newest version (2.7.5-1ubuntu0.16.04.1).
libevent-dev is already the newest version (2.0.21-stable-2ubuntu0.16.04.1).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python-matplotlib : Depends: python-dateutil but it is not going to be installed
                     Depends: python-pyparsing (>= 1.5.6) but it is not going to be installed
                     Depends: python-tz but it is not going to be installed
                     Depends: python (< 2.8) but it is not going to be installed
                     Depends: python (>= 2.7~) but it is not going to be installed
                     Depends: python-cycler but it is not going to be installed
                     Depends: python:any (>= 2.7.5-5~)
                     Recommends: python-glade2 but it is not going to be installed
                     Recommends: python-imaging but it is not going to be installed
                     Recommends: python-tk (>= 2.5.2-1.1) but it is not going to be installed
 python-numpy : Depends: python (< 2.8) but it is not going to be installed
                Depends: python (>= 2.7~) but it is not going to be installed
                Depends: python:any (>= 2.7.5-5~)
                Depends: liblapack3 but it is not going to be installed or
                         liblapack.so.3
 python-scipy : Depends: python-decorator but it is not going to be installed
                Depends: python (< 2.8) but it is not going to be installed
                Depends: python (>= 2.7~) but it is not going to be installed
                Depends: python:any (>= 2.7.5-5~)
                Depends: libgfortran3 (>= 4.6) but it is not going to be installed
                Depends: liblapack3 but it is not going to be installed or
                         liblapack.so.3
                Recommends: python-dev but it is not going to be installed
                Recommends: python-imaging but it is not going to be installed
E: Unable to correct problems, you have held broken packages.