Python 2.7 is a version of the Python programming language released in 2010. Use this tag for questions about using Python 2.7 in Ubuntu.

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60
votes
7answers
87k views

Make default `python` command to use Python 3

I can access Python 3 via python3 command. But I want to make the default interpreter to use python command for Python 3. Simple typing python takes me to Python 2. How to upgrade?
38
votes
2answers
41k views

Error installing scrapy in virtualenv using pip

pip install scrapy Downloading/unpacking scrapy Downloading Scrapy-0.24.2-py2-none-any.whl (502kB): 502kB downloaded Downloading/unpacking pyOpenSSL (from scrapy) Downloading pyOpenSSL-0.14.tar.gz ...
12
votes
2answers
10k views

Install uwsgi 1.2.5 via pip

Welcome, Currently I'm trying to install latest uwsgi on my VPS (Ubuntu 11.10) based on instruction from the site http://projects.unbit.it/uwsgi/wiki/Quickstart pip install uwsgi During ...
12
votes
4answers
59k views

Problem installing Python-Dev

I am having trouble installing python-dev. It all started when I tried to install another Python package and got the error: SystemError: Cannot compile 'Python.h'. Perhaps you need to install ...
11
votes
2answers
41k views

How can I remove python 2.7 after installing python 3.3?

I have successfully installed python 3.3 on Ubuntu 12.10. Since I don’t need multiple versions of python, I want to remove the existing python 2.7. When I try to do that, using sudo apt-get remove ...
11
votes
3answers
13k views

pip won't run. throws errors instead

I am running into problems when ever I run pip with any arguments or flags. I've tried doing apt-get install --reinstall python-pip but it does not help and am at a loss how to fix this Version of ...
10
votes
2answers
13k views

ImportError: No module named sklearn

I installed scikit-learn on following these instructions Even when I try now to run again: sudo pip install -U scikit-learn I get this message proving again that installation is ok: Requirement ...
9
votes
8answers
42k views

I run `sudo apt-get remove python2.7`, can I restore my Ubuntu now?

I wanted to remove and reinstall python2.7 interpreter on 12.04 But when I did sudo apt-get remove python2.7, The crazy terminal started to remove everything!!! Any idea how I can restore whatever ...
8
votes
4answers
10k views

python 2.7 => ImportError: No module named _io

I decided to switch from Windows to Linux, so I installed Ubuntu Raring final beta. Unfortunately I have a Python problem. I was trying to use pip from a virtualenv I created, to install packages ...
6
votes
4answers
43k views

How to install h.264 decoder?

I tried playing videos in movie player but only the audio could be heard. I tried playing the video with dragon player but here also only the audio could be heard. A message box appeared showing the ...
5
votes
1answer
8k views

Beautiful Soup 4 not working with Python 3.4.0

I am using Ubuntu 14.04 64 bit Operating System . I installed Beautiful Soup 4 using this command : sudo apt-get install python-bs4 With Python 2.7.6 , I had no difficulty importing the bs4 ...
5
votes
2answers
3k views

Changing Python default in 12.04 LTS

I have downloaded and installed python 3.2.3 for Ubuntu/Debian. Also IDLE IDE for 3.2.3. If I execute IDLE for 3.2.3 explicitely, 3.2.3 runs under IDLE and all is well. But if I go to a terminal ...
5
votes
2answers
587 views

Why does pip -t not work on Ubuntu 15.04?

I've been having an odd problem with pip on Ubuntu 15.04. When I try to install anything using the "-t" option to put it in a specific directory, it fails with the following error: error: can't ...
5
votes
2answers
2k views

unoconv is not working in python

I've an issue while using unoconv to convert docs to html from a Python script. It works perfectly when I run the script or the unoconv commands as root, but it fails when I do the same from other ...
5
votes
1answer
616 views

Python-Speechd?

I just upgraded to Ubuntu 12.10, am fooling around with some Python code. In earlier releases, I used to be able to do: import speechd And now I get that the module does not exist. It also tells ...
5
votes
1answer
1k views

Alsa problems with python2.7- Unable to open slave

I am using python's module pyaudio to process sound but ALSA returns: ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open ...
4
votes
3answers
6k views

Python (v2.7) requires to install plugins to play media files of the following type: Windows Media Audio 8 decoder

when trying to convert some audio files to Ogg Vorbis using Sound Converter I get the following error: Python (v2.7) requires to install plugins to play media files of the following type: ...
4
votes
2answers
652 views

Error installing matplotlib

I got the following error while trying to install matplotlib using pip under Ubuntu 15.04 (Python 2.7.9). Traceback (most recent call last): File ...
3
votes
3answers
11k views

Need to have 2 versions of Python without using a VM

I need to have 2 versions of Python installed on my PC. The first must be the latest version in order to use youtube-dl, and the second must be the 2.7 version for a course that says we must not ...
3
votes
2answers
18k views

how to update python version on ubuntu 14.10

I'm trying to figure out what version of python i have installed, and also upgrade it to the latest. When I go to a command prompt and check, it looks like I have an old version of python installed. ...
3
votes
1answer
279 views

Is there a way to not show .pyc (Python bytecode) files under Nautilus?

Is there a way to disable them under directory structures in Nautilus? My Django-project is getting quite confusing with them.
3
votes
1answer
712 views

ImportError: cannot import name ForwardHeaderGenerator

I'm trying to install the library KD Soap (Qt-based client-side and server-side SOAP component) and I get this error : user@server:/path/KDSoap-master/autogen$ python autogen.py Traceback (most ...
3
votes
2answers
1k views

How to run multiple Python files by running one terminal code?

For my text-mining project (with an Enron data set), I have this Python script: from glob import glob import fileinput with open('/media/output/inbox.txt', 'w') as out: for line in ...
3
votes
2answers
15k views

Python 2.7.6 on Ubuntu 12.04 How to?

I'm developer and I need to make my enviroment work with Python 2.7.6 (not 2.7.3) on the Ubuntu 12.04. Please, provide me some notes how to do that?
3
votes
2answers
4k views

Python 2.7: no documentation found when typing help('print')

I have just installed Python 2.7 and Python 3.2 on my Ubuntu 12.04 (32 bit). sudo apt-get install python python-doc python3 python3-doc I opened a Python 3 shell (is it called like that) typing ...
3
votes
1answer
383 views

How do i tell ubuntu to only install is asked for and do not bring other dependencies which will break the whole system?

How can i only install python-webkit but not other packages? which is showing to install? (no gstreamer*.*, i do not want to have any single files installed in my distro because of GPL license and it ...
3
votes
1answer
14k views

python error IndentationError: expected an indented block

I started to learn python , but when I try to make an function I get this error IndentationError: expected an indented block I use the terminal and write python then start to write the function ...
3
votes
6answers
18k views

Eclipse not showing Pydev in Preferences

After installing Eclipse and python I am not able to see Pydev on eclipse. When I try to install eclipse again it is showing as duplicate location.
3
votes
1answer
209 views

How do I switch back to python2 after Anaconda set python3 as the default?

Recently, I installed Anaconda3-2.5.0-Linux-x86_64.sh on my 15.04 and ended up with this! :~$ python --version Python 3.5.1 :: Anaconda 2.5.0 (64-bit) :~$ python2 --version Python 2.7.9 :~$ python3 ...
3
votes
1answer
955 views

Python Error when opening software-center

My software center suddenly not working. When i tried to open it from the launcher, its only loading but showing nothing. I tried to run it from terminal, and got this error : Traceback (most recent ...
3
votes
1answer
2k views

How can I install pygame 1.9.2 on ubuntu 13.04?

The python-pygame package contains version 1.9.1release, but I need features from 1.9.2. Is there a PPA available for the latest pygame release? Thanks in advance!
3
votes
1answer
1k views

Where can I find the python Tools directory?

The python2.7 documentation refers to a Tools/scripts directory and a Tools/demos directory, but those don't seem to be on my computer. locate Tools/scripts doesn't find anything. A post on ...
3
votes
1answer
304 views

I can't open software updater and unity tweak tool on Ubuntu14.04

I have a notification nearly every time I try to update. That note 'An error occurred while checking for updates => [TR Language] Güncellemeler denetlenirken bir sorun oluştu.' I can't open software ...
3
votes
1answer
2k views

How can I get the MAC addresses of machines using python-nmap?

How can I get the MAC addresses of machines using python-nmap? I'm using python-nmap to scan my local network, I can get the ip of several systems but not their MAC addresses. How can I get the MAC ...
3
votes
0answers
39 views

Ubuntu 14.04: Is there a way to reset python 2 and all dependencies to the factory setting?

I am a daily user of python 2 and after something (I am not sure but I believe it was pygments) was installed in my system I am not able to make the things work again as before. I have already lost ...
3
votes
1answer
84 views

rubber failing after upgrade to 15.10

rubber is a program that compiles LaTeX files into pdf document. After upgrading, I receive the following error when trying to run rubber on a document. My apologies for the huge stack trace, but my ...
3
votes
0answers
957 views

ERROR: venv: commands failed while installing devstack on ubuntu 14.04LTS

I am trying to install devstack on Ubuntu 14.04 LTS. While installing I came across this error. Up to this I edited the local.conf file and installed libvirt-1.2.15. The detail screenshot is as ...
3
votes
0answers
255 views

Accessibility bus error when packaging

When i do quickly package i get the flowing warning. Not a big deal but because this warning i can't share my package to my ppa. ** (setup.py:5679): WARNING **: Couldn't register with accessibility ...
2
votes
1answer
196 views

Launching finder from python

I wish to input a subfolder name into terminal and have a script launch it in finder. This is my code: import sys import os fullname='/home/ash/caffe/examples/imagenet/train_rest/'+str(sys.argv[1]) ...
2
votes
1answer
3k views

NLTK, installed in python 2.7 but not working in python 3.4

I just installed nltk when my default python was the 2.7 version, now when I open the python3 (3.4 version), I can't import nltk, is there any solution to this, to make nltk available for both ...
2
votes
1answer
308 views

Python interactive interpreter: initial tab is 4, subsequent tabs are 8 spaces

When I use the interactive Python interpreter, the width of the tabs seem out of sync with each other. Specifically, the first tab gives me a tab width equivalent to 4 spaces, while the next tabs ...
2
votes
3answers
16k views

import numpy - no module named multiarray

On Ubuntu 12.04 64-bit, I installed python 2.7.3, and numpy 1.6.2. When I try to import numpy, I get this: erelsgl@erel-biu:/host/Dropbox/ai/routes$ python Python 2.7.3 (default, Nov 25 2012, ...
2
votes
2answers
1k views

Changing python version without breaking software center

I have been fiddling with my Python installation on Ubuntu 12.04 (I was having trouble installing a python library), and at one point my python command wasn't working. It turned out the symlink was ...
2
votes
1answer
897 views

Installing stackless python, how to get modules?

I've followed the instructions found here: http://architects.dzone.com/articles/install-stackless-python and installed stackless. Stackless itself works, but unlike what the tutorial said I cannot ...
2
votes
1answer
3k views

add-apt-repository: Problem with the SSL CA cert

user@amd64:~$ sudo add-apt-repository ppa:jd-team/jdownloader [sudo] password for 1: Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ppa_info ...
2
votes
1answer
2k views

How to install the most recent numpy, scipy and scikit on ubuntu?

I need to install numpy 1.9 ('cause some methods are available in this version, not in the previous) which isn't the numpy package proposed yet today (apt-get returns 1.8). How to install the latest ...
2
votes
1answer
777 views

Removing idle-python2.7 in Ubuntu 12.04

I'm having some issues when updating packages on Ubuntu 12.04: Processing triggers for menu ... Errors were encountered while processing: idle-python2.7 Setting up idle-python2.7 (2.7.3-0ubuntu3.5) ...
2
votes
1answer
881 views

Python ImportError after reinstallation of nautilus

I have a problem with python on my Ubuntu 12.10. Firstly the problem arose when I was trying to reinstall nautilus because of some troubles with it. I used apt-get --reinstall install nautilus*. The ...
2
votes
1answer
124 views

PyKaraoke not working on Ubuntu 12.10. Will it be for python3?

I have Ubuntu 12.10 and PyKaraoke was not working before I worked in 12.10. It now opens but I can not add folders to the library. Only the Home folder.
2
votes
1answer
2k views

Python ImportErrors while trying to get a program (found on Google Code) to work

I'm trying to install a program written in Python / -->http://code.google.com/p/amphetype/<-- / I did subversion checkout svn checkout http://amphetype.googlecode.com/svn/trunk/ ...