I want to uninstall my 3.6 version without touching the original 3.5 version. So I ran
sudo apt-get remove python3.6
but the output was:
E: Unable to locate package python3.6
E: Couldn't find any package by glob 'python3.6'
E: Couldn't find any package by regex 'python3.6'
$ dpkg -l python3.6
dpkg-query: no packages found matching python3.6
$ dpkg -l python3
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii python3 3.5.1-3 amd64 interactive high-level object-ori
$ apt-cache policy python3
python3:
Installed: 3.5.1-3
Candidate: 3.5.1-3
Version table:
*** 3.5.1-3 500
500 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
My goal is described in Ubuntu 16.04 : Can't seem to make numpy work in python 3.6.5 but it works fine in python 2.7.12. I'm unable to make my code run in neither of python2.7, python3.5, python 3.6. I'm fine with whatever Python version so long as I'm able to run my code.
$ type python
python is hashed (/usr/bin/python)
$ type python3
python3 is hashed (/usr/local/bin/python3)
$ type python3.6
python3.6 is hashed (/usr/local/bin/python3.6)
$ apt list --installed 'python*'
Listing... Done
python/xenial-updates,now 2.7.12-1~16.04 amd64 [installed]
python-all/xenial-updates,now 2.7.12-1~16.04 amd64 [installed,automatic]
python-all-dev/xenial-updates,now 2.7.12-1~16.04 amd64 [installed,automatic]
python-apt-common/xenial-updates,xenial-updates,now 1.1.0~beta1ubuntu0.16.04.1 all [installed]
python-crypto/xenial-updates,xenial-security,now 2.6.1-6ubuntu0.16.04.3 amd64 [installed]
python-dbus/xenial,now 1.2.0-3 amd64 [installed,automatic]
python-dev/xenial-updates,now 2.7.12-1~16.04 amd64 [installed,automatic]
python-gi/xenial,now 3.20.0-0ubuntu1 amd64 [installed,automatic]
python-ldb/xenial,now 2:1.1.24-1ubuntu3 amd64 [installed]
python-minimal/xenial-updates,now 2.7.12-1~16.04 amd64 [installed]
python-numpy/xenial,now 1:1.11.0-1ubuntu1 amd64 [installed]
python-pip/xenial-updates,xenial-updates,now 8.1.1-2ubuntu0.4 all [installed]
python-pip-whl/xenial-updates,xenial-updates,now 8.1.1-2ubuntu0.4 all [installed,automatic]
python-pkg-resources/xenial,xenial,now 20.7.0-1 all [installed,automatic]
python-pyatspi/xenial,xenial,now 2.18.0+dfsg-3 all [installed,automatic]
python-samba/xenial-updates,xenial-security,now 2:4.3.11+dfsg-0ubuntu0.16.04.13 amd64 [installed]
python-setuptools/xenial,xenial,now 20.7.0-1 all [installed,automatic]
python-talloc/xenial,now 2.1.5-2 amd64 [installed]
python-tdb/xenial,now 1.3.8-2 amd64 [installed]
python-wheel/xenial,xenial,now 0.29.0-1 all [installed,automatic]
python2.7/xenial-updates,now 2.7.12-1ubuntu0~16.04.3 amd64 [installed]
python2.7-dev/xenial-updates,now 2.7.12-1ubuntu0~16.04.3 amd64 [installed,automatic]
python2.7-minimal/xenial-updates,now 2.7.12-1ubuntu0~16.04.3 amd64 [installed]
python3/xenial,now 3.5.1-3 amd64 [installed]
python3-apport/xenial-updates,xenial-updates,now 2.20.1-0ubuntu2.17 all [installed]
python3-apt/xenial-updates,now 1.1.0~beta1ubuntu0.16.04.1 amd64 [installed]
python3-aptdaemon/xenial,xenial,now 1.1.1+bzr982-0ubuntu14 all [installed]
python3-aptdaemon.gtk3widgets/xenial,xenial,now 1.1.1+bzr982-0ubuntu14 all [installed]
python3-aptdaemon.pkcompat/xenial,xenial,now 1.1.1+bzr982-0ubuntu14 all [installed]
python3-blinker/xenial,xenial,now 1.3.dfsg2-1build1 all [installed]
python3-brlapi/xenial-updates,now 5.3.1-2ubuntu2.1 amd64 [installed]
python3-bs4/xenial,xenial,now 4.4.1-1 all [installed]
python3-cairo/xenial,now 1.10.0+dfsg-5build1 amd64 [installed]
python3-cffi-backend/xenial,now 1.5.2-1ubuntu1 amd64 [installed]
python3-chardet/xenial,xenial,now 2.3.0-2 all [installed]
python3-checkbox-support/xenial,xenial,now 0.22-1 all [installed]
python3-commandnotfound/xenial-updates,xenial-updates,now 0.3ubuntu16.04.2 all [installed]
python3-cryptography/xenial-updates,xenial-security,now 1.2.3-1ubuntu0.1 amd64 [installed]
python3-cups/xenial,now 1.9.73-0ubuntu2 amd64 [installed]
python3-cupshelpers/xenial,xenial,now 1.5.7+20160212-0ubuntu2 all [installed]
python3-dateutil/xenial,xenial,now 2.4.2-1 all [installed,automatic]
python3-dbus/xenial,now 1.2.0-3 amd64 [installed]
python3-debian/xenial,xenial,now 0.1.27ubuntu2 all [installed]
python3-defer/xenial,xenial,now 1.0.6-2build1 all [installed]
python3-dev/xenial,now 3.5.1-3 amd64 [installed,automatic]
python3-distupgrade/xenial-updates,xenial-updates,xenial-security,xenial-security,now 1:16.04.25 all [installed]
python3-feedparser/xenial,xenial,now 5.1.3-3build1 all [installed]
python3-gdbm/xenial,now 3.5.1-1 amd64 [installed]
python3-gi/xenial,now 3.20.0-0ubuntu1 amd64 [installed]
python3-gi-cairo/xenial,now 3.20.0-0ubuntu1 amd64 [installed]
python3-guacamole/xenial,xenial,now 0.9.2-1 all [installed]
python3-html5lib/xenial,xenial,now 0.999-4 all [installed]
python3-httplib2/xenial,xenial,now 0.9.1+dfsg-1 all [installed]
python3-icu/xenial,now 1.9.2-2build1 amd64 [installed]
python3-idna/xenial,xenial,now 2.0-3 all [installed]
python3-jinja2/xenial,xenial,now 2.8-1 all [installed]
python3-jwt/xenial-updates,xenial-updates,xenial-security,xenial-security,now 1.3.0-1ubuntu0.1 all [installed]
python3-louis/xenial-updates,xenial-updates,xenial-security,xenial-security,now 2.6.4-2ubuntu0.1 all [installed]
python3-lxml/xenial,now 3.5.0-1build1 amd64 [installed]
python3-mako/xenial,xenial,now 1.0.3+ds1-1ubuntu1 all [installed]
python3-markupsafe/xenial,now 0.23-2build2 amd64 [installed]
python3-minimal/xenial,now 3.5.1-3 amd64 [installed]
python3-oauthlib/xenial,xenial,now 1.0.3-1 all [installed]
python3-padme/xenial,xenial,now 1.1.1-2 all [installed]
python3-pam/xenial,now 0.4.2-13.2ubuntu2 amd64 [installed]
python3-pexpect/xenial,xenial,now 4.0.1-1 all [installed]
python3-pil/xenial-updates,xenial-security,now 3.1.2-0ubuntu1.1 amd64 [installed]
python3-pip/xenial-updates,xenial-updates,now 8.1.1-2ubuntu0.4 all [installed]
python3-pkg-resources/xenial,xenial,now 20.7.0-1 all [installed]
python3-plainbox/xenial,xenial,now 0.25-1 all [installed]
python3-problem-report/xenial-updates,xenial-updates,now 2.20.1-0ubuntu2.17 all [installed]
python3-ptyprocess/xenial,xenial,now 0.5-1 all [installed]
python3-pyasn1/xenial,xenial,now 0.1.9-1 all [installed]
python3-pyatspi/xenial,xenial,now 2.18.0+dfsg-3 all [installed]
python3-pycurl/xenial,now 7.43.0-1ubuntu1 amd64 [installed]
python3-pyparsing/xenial-updates,xenial-updates,now 2.0.3+dfsg1-1ubuntu0.1 all [installed]
python3-renderpm/xenial,now 3.3.0-1 amd64 [installed]
python3-reportlab/xenial,xenial,now 3.3.0-1 all [installed]
python3-reportlab-accel/xenial,now 3.3.0-1 amd64 [installed]
python3-requests/xenial,xenial,now 2.9.1-3 all [installed]
python3-setuptools/xenial,xenial,now 20.7.0-1 all [installed,automatic]
python3-six/xenial,xenial,now 1.10.0-3 all [installed]
python3-software-properties/xenial-updates,xenial-updates,now 0.96.20.7 all [installed]
python3-speechd/xenial,xenial,now 0.8.3-1ubuntu3 all [installed]
python3-systemd/xenial,now 231-2build1 amd64 [installed]
python3-tk/xenial,now 3.5.1-1 amd64 [installed]
python3-uno/xenial-updates,xenial-security,now 1:5.1.6~rc2-0ubuntu1~xenial3 amd64 [installed]
python3-update-manager/xenial-updates,xenial-updates,xenial-security,xenial-security,now 1:16.04.12 all [installed]
python3-urllib3/xenial-updates,xenial-updates,now 1.13.1-2ubuntu0.16.04.1 all [installed]
python3-wheel/xenial,xenial,now 0.29.0-1 all [installed,automatic]
python3-xdg/xenial,xenial,now 0.25-4 all [installed]
python3-xkit/xenial,xenial,now 0.5.0ubuntu2 all [installed]
python3-xlsxwriter/xenial,xenial,now 0.7.3-1 all [installed]
python3.5/xenial-updates,xenial-security,now 3.5.2-2ubuntu0~16.04.4 amd64 [installed]
python3.5-dev/xenial-updates,xenial-security,now 3.5.2-2ubuntu0~16.04.4 amd64 [installed,automatic]
python3.5-minimal/xenial-updates,xenial-security,now 3.5.2-2ubuntu0~16.04.4 amd64 [installed]
python2
or in the shebang with#!/usr/bin/python2
python3.5
in the terminal :-) Still not able to figure out how to run it usingpython3
ORpython
though.dpkg
showpython3
to be the version 3.6.5 whileapt
thinks it’spython3/xenial,now 3.5.1-3 amd64
. Could you add the output ofapt-cache policy python3
to your question? BTW is yourdpkg -l
output exactly what you reported? I get another format using the same command on Ubuntu 16.04:ii python3 3.5.1-3 amd64 interactive high-level object-oriented lang