package python-setuptools 39.0.1-2 failed to install/upgrade: installed python-setuptools package post-installation script subprocess returned error exit status 127

[Aline Pereira]

I NEED HELP!!!!

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: python-setuptools 39.0.1-2
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
AptOrdering:
 firefox-locale-en:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Mon Jun 18 20:11:49 2018
Dependencies: python-pkg-resources 39.0.1-2
ErrorMessage: installed python-setuptools package post-installation script subprocess returned error exit status 127
InstallationDate: Installed on 2018-05-30 (20 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /root/Error: command ['which', 'python'] failed with exit code 1:, Error: [Errno 2] Arquivo ou diretório inexistente: "/root/Error: command ['which', 'python'] failed with exit code 1:": "/root/Error: command ['which', 'python'] failed with exit code 1:", unpackaged
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: python-setuptools
Title: package python-setuptools 39.0.1-2 failed to install/upgrade: installed python-setuptools package post-installation script subprocess returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)