Python 3 is the latest major version of Python, a scripting language used my very many open source developers.

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73
votes
8answers
189k views

How do I install Python 3.3?

I have downloaded Python 3.3 from the official site but no idea how to install it. I'm using Ubuntu 12.04
18
votes
3answers
36k views

How to create a virtualenv with Python3.3 in Ubuntu?

I'm running Precise Pangolin amd64. I installed Python 3.3 from ppa:fkrull/deadsnakes. Now I want to actually use this new Python version in a virtualenv. But How can I do this? I get the following ...
17
votes
5answers
24k views

How to install pip for python 3 in ubuntu 12.04 LTS

I am trying to install the Pillow module for python 3.3, but for that I need to install pip. Every time that I install pip it installs for python 2.7, any help?
16
votes
3answers
4k views

pyvenv-3.4 error: returned non-zero exit status 1

When trying to create a virtual environment using the included pyvenv-3.4 that comes with 14.04, it throws an error: Error: Command '['/some/directories/bin/python3.4', '-Im', 'ensurepip', ...
15
votes
4answers
21k 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?
14
votes
5answers
74k views

How to install Python 3.4 on Ubuntu?

If I open Terminal and type in python, I see the version is 2.7.4. How do I get python 3.4? And do I need IDLE if I have sublime text?
14
votes
3answers
7k views

How can I install Django for Python 3.x?

I installed Django with this command: sudo apt-get install python-django And it installed version 1.5.4-1ubuntu1. The Django docs say that as of version 1.5, Django supports Python 3. Yet when I ...
11
votes
7answers
1k views

Should I change my Python code if I upgrade my Ubuntu?

I have a software that I have been developing in Python 3 for years. Until today, I have been using Ubuntu Desktop 11.04 but now I want to move to a higher version of Ubuntu. Must I stay on Ubuntu ...
8
votes
1answer
1k views

What is python3mu?

I'm setting up PyDev for Eclipse, and I have to choose a version of Python for the interpretor. I want to use Python3, and I've been using python3 as my interpretor, so I thought /usr/bin/python3 ...
8
votes
1answer
5k views

“libpeas-WARNING **: Could not find loader 'python3' for plugin” when loading a pluging in gedit

I recently upgraded to Ubuntu 13.04 and I use gedit for a lot of things. I was trying to install some plugins that I use quite frequently and I came into some issues. First I installed the plugins ...
8
votes
3answers
6k views

Making python 3.3 default python 3 interpreter instead of 3.2

So, to keep it simple. Ubuntu 12.10 has python 3.2 pre installed and it is linked to "python3". I downloaded python 3.3 and it's command is "python3.3". However, I downloaded pySide for python3 from ...
6
votes
2answers
45k views

How to find python installation directory on ubuntu

I have just migrated from Windows environment. I have installed Python 3.2 in a separate directory. How can I get the python installation path on ubuntu shell ? Is there any way I can let shell ...
6
votes
1answer
4k views

How to create Excel xlsx files from a script?

I'm looking for packages available in Ubuntu main/universe repositories able to create Excel 2007+ xlsx files from a script (python3 or perl) My requirements: 100% compatible Excel XLSX files. ...
5
votes
2answers
5k views

12.10 has Python 3.2.3 default, does this impact existing python tools?

Ubuntu 12.10 has Python 3.2.3 default, so does this impact existing python tools, designed to be used with older python 2.x? There was a discussion in HackerNews on the same. I'm a bit apprehensive ...
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
1k views

Take screenshots at random intervals with Python?

I am working on a project to take screenshots of desktop and upload images to a server I want to develop a python app, when user starts that app it will start taking screenshots in random interval ...
5
votes
2answers
4k views

Open terminal window and execute Python script on startup

I have a Python script which I would like to execute at every startup. I can run it by adding this to the startup applications: python3 /path/to/script.py That works, but it doesn't open a terminal ...
4
votes
2answers
578 views

Installing Bluez in Python3

How do I install bluetooth/bluez modules into python3? In Python2 I'm able to import bluetooth and utilize it but in Python3 I have no such luck. How can I import bluetooth modules in python3?
4
votes
1answer
1k views

Python Global Hotkey

I'm looking to create a global hotkey in Python 3.2 for Ubuntu 12.10. That is, my script will run in the background and whenever I press Shift+F4 (for example), no matter what the active window is, ...
3
votes
3answers
448 views

Python 3 error when running the print command

All I wrote in the interpreter was as follows: >>> print "Hello, World!" File "<stdin>", line 1 print "Hello, World!" ^ SyntaxError: invalid syntax How ...
3
votes
1answer
2k 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 ...
3
votes
3answers
8k 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
3answers
5k views

How to download pygame in python3.3

I am using Ubuntu 13.10.I have both python 2.7 and python 3.3.I have installed pygame properly in python 2.7.How can i install it in python3.3.Does pygame support python3.3 or not?
3
votes
2answers
129 views

What to learn Ubuntu application development in python, where to start?

I know basic python and i love it. I want to learn how to develop and publish Ubuntu applications in python but don't know where to start (I mean "the standard ways" to do so). It would be good if you ...
3
votes
1answer
200 views

how to use python3 shortcuts on emacs?

I am new to emacs and I am trying to set python3 as default interpreter. I have installed from software centre the python plugin for emacs. I can run a python3 file going to pyexec-->execute ...
3
votes
1answer
3k views

Trying to create a python virtual environment but getting OSError

I have installed python3.3, pip-1.5, ditribute-0.7.3, virtualenv-1.11. I am giving the below command to create virtual environment virtualenv --no-site-packages test I am getting the following ...
3
votes
2answers
751 views

How to create a deb package for a python3 script?

I have one Python file, main.py. I would like to be able to make a .deb package from it, and then be able to run main.py by typing the package name from the terminal. It is written in Python 3, so the ...
3
votes
1answer
2k views

Unable to import tkinter?

I am studying Python and tried to make GUI using python.I am using IDLE 3.2 on 12.04 Ubuntu.When i typed import Tkinter, a error comes, it says following: Traceback (most recent call last): File ...
3
votes
1answer
397 views

Designing UI using html and css and without webkit?

I want to try out developing desktop applications with the UI designed using html5,css and jquery and the back end code written in python. Is this possible? I have already tried out the WebKit but is ...
3
votes
1answer
453 views

How to install requests module for Python 3.1 ubuntu server 10.04?

I have a ubuntu server.(10.04) I don't install requests module. I try pip and other methods. Usually ; $ sudo pip install requests Traceback (most recent call last): File ...
3
votes
1answer
221 views

Which media players available in the Ubuntu repositories uses GStreamer, GTK+ and were written in Python?

I'm planning to write a media player for Ubuntu to present in fair in the place I study. And I'd like to use GStreamer and GTK+ with Python, but I could not find a good documentation about the ...
3
votes
2answers
2k views

how to load python3 to eric IDE?

Installed Eric IDE for python 3 Learning by using Ubuntu 12.04 LTS . But Eric showing Python2.7.3 , not showing python 3 even its installed . so how can i configure Eric to show the python as ...
3
votes
1answer
55 views

What's the easiest way to get vim with python 3 support?

I have ubuntu 14.04 installed and vim in its repos is compiled without python 3 support. Because of that python-mode plugin can't work with python 3 code. What's the easiest way to get vim with python ...
3
votes
1answer
348 views

pyvenv still broken on 14.04.1?

meow@te:~# pyvenv-3.4 v Error: Command '['/meow/v/bin/python3.4', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1 I thought it was fixed. I've done update and ...
3
votes
1answer
865 views

installing numpy for python 3.1.2 on Ubuntu 10.04

I have installed numpy for python 2.6.5. I want to use it for python 3.1.2 and I don't know how to install it. I'm new to ubuntu and I don't know how to install it from tar file. I am using Geany for ...
2
votes
2answers
2k views

Installing Python 3.4 from source

I am running Xubuntu 13.10 i386 with the python (2.7) and python3 (3.3) packages installed. I have downloaded and compiled the source code for Python 3.4 but the binary file is named python. How can I ...
2
votes
1answer
4k views

Install and run Python 3 at the same time than Python 2

Im using 13.04 but I want have installed the both main Python versions for make tests about migration of my actual code. is possible install Python 3 in the same machine running Python 2.7? I need ...
2
votes
1answer
1k views

installation error in sklearn for python3

When I run the command sudo pip3 install -U scikit-learn I receive a strange error. Cleaning up... Command /usr/bin/python3 -c "import setuptools, ...
2
votes
2answers
306 views

Reference counting on exported DBus objects?

I'm working on a DBus service that needs to export objects on demand when requested by 3rd party applications. That part seems fairly strait-forward. But I also need to "garbage collect" these ...
2
votes
2answers
1k views

Problems upgrading to Python 3.3 and setting up Django

I'm new to Linux and am trying to set up Python / Django on my machine! I installed Python 3.3 from the source file and it was compiled into /usr/local/bin. Then I created a symbolic link between ...
2
votes
2answers
962 views

Python3.2 error; Unable to install or remove anything

I searched around as much as I could, but I couldn't seem to find a solution to fix my problem. Whether I install anything, remove anything, run sudo apt-get update or sudo apt-get upgrade, I still ...
2
votes
2answers
628 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
992 views

Import error when running update manager

It seems like I am getting some error related to Python, but I am not sure why I am getting it. When I ran Software Updater (in 12.10) from unity, it didn't even fire up. When I did this from the ...
2
votes
1answer
182 views

Launching a python script in IDLE works but in terminal I get a SMTP instance has no attribute 'send_message' error

I have a script that results in an email being sent out with smtplib.SMTP python module. When I run it from within IDLE is sends fine with no error messages. I am trying various ways to automate it ...
2
votes
1answer
692 views

Cannot install scikit-learn in Python 3.4 in Ubuntu 14.04

I am trying to get scikit-learn to Python 3.4 in Ubuntu 14.04. When a run the command: sudo pip3 install -U scikit-learn I get scikit-learn loaded into Python 2.7. I have also tried to use: sudo ...
2
votes
1answer
21 views

Python3 application icon

In Ubuntu 13.04, when I use the setWindowIcon method in the code of my python3/pyqt4 application, it works fine, and the application icon is set properly. After upgrading to Ubuntu 13.10 however, ...
1
vote
1answer
144 views

What is wrong with this python script?

I have this code: from sys import argv import os bold = "\033[1m" reset = "\033[0;0m" try: argv[1] except IndexError: print("\nNo arguments! Add \"-h\" or \"--help\" for more info." + bold + ...
1
vote
1answer
602 views

How to install scipy with pip3?

I am trying to install scipy for python3.x and I am trying to install it with pip3 sudo pip3 install scipy But I have the following errors: Downloading/unpacking scipy Running setup.py ...
1
vote
1answer
95 views

14.04 what is the difference between /usr/bin/python3 /usr/bin/python3.4

In /usr/bin there is a python3 and python3.4. What is the difference? If I am setting up virtualenv for 3.4 do I need to point it to the 3.4 file, or does the python3 act like a meta package?
1
vote
3answers
2k views

Installing Python modules on Ubuntu

I have been using Python on Windows for a while, so I'm into a lot of modules, including Pygame and LiveWires, but how do I install them into Ubuntu? I have the py file for LiveWires, which has been ...