Python is an interpreted programming language that is often, but not solely, used as a scripting language. A version of Python is included by default on all Ubuntu distributions.

learn more… | top users | synonyms

16
votes
3answers
3k views

Why does Ubuntu use Python 2.6 and not 3.X?

I have recently started learning Python and thus have learned that Ubuntu (10.10) uses Python 2.6. It seems to me that Python 3.X is still rather unpopular in the Linux/Ubuntu community. Why is that? ...
16
votes
2answers
2k views

Developing Unity compliant apps in Python - where to start?

I'm an experienced programmer who is interested in developing apps for Linux, specifically GTK, and more specifically apps that are Unity compliant. Aside from the obvious step of learning Python, ...
16
votes
3answers
16k views

“Authentication service is not available” when installing IDLE (using python 2.7)

I am getting this error installing IDLE on 12.10: Software can't be installed or removed because the authentication service is not available. (org.freedesktop.PolicyKit.Error.Failed: ...
15
votes
2answers
13k views

How to use the newest ipython in ubuntu12.04?

How to use the newest ipython in ubuntu12.04? The newest ipython is 1.0. The ipython in official software center is too old. Thanks
15
votes
2answers
48k views

Installing Anaconda python on ubuntu

How to install anaconda python on ubuntu? https://store.continuum.io/cshop/anaconda/ Is there a way to apt-get install it? I only have command line access to my server, how do i install anaconda ...
15
votes
5answers
11k views

How to run asynchronous tasks in Python GObject Introspection apps

I'm writing a Python + GObject app that needs to read a non-trivial amount of data from disk upon start. The data is read synchronously and it takes about 10 seconds to finish the read operation, ...
15
votes
2answers
5k views

Installing Pylint for Python3 on Ubuntu

My understanding is that the latest release of Pylint (1.0.0 at the time of this writing) has support for Python 3, but I can't get it to work on 64-bit Ubuntu 13.04 with Python 3.3. I followed the ...
15
votes
1answer
3k views

How can I write Nautilus scripts in Python?

I want to write a Nautilus script in Python. Is that possible? If it is possible, how can I do that?
15
votes
2answers
29k views

How to install opencv 2.9 for python?

I have been having the exact same problem as described in this post and someone in the answers suggested that you upgrade to opencv version 2.9. I was wondering how do that? I installed the version ...
15
votes
1answer
2k views

Putting an arbitrary gtk.Widget into an appindicator.Indicator

Putting any gtk.Widget inside a gtk.Menu works, somewhat, by putting an empty gtk.MenuItem in first. It doesn't seem to be reliable - but it basically works. With an appindicator.Indicator, it doesn't ...
14
votes
7answers
2k views

Wanting to start development for Ubuntu (and most Linux distributions in general), which is suitable? Python or Vala? [closed]

I'm a computer science graduate, and learned languages like C, C++, C# and Java. Though I have more experience with Java. I want to develop for Linux and I'd prefer to develop for GNOME, I'm confused ...
14
votes
1answer
5k views

How can I get tab-completion in the interactive Python interpreter?

I often use Python 3000's interactive interpreter, but it's missing the convenience of tab-completion I'm used to from ipython, which isn't available for Python 3.x. How do I enable tab completion in ...
14
votes
2answers
8k views

How to use a python virtualenv with sudo?

I am trying to make a python environment separate from the system one (using virtualenv) in a directory which is not under /home, because I need to use it to build other software that has to be ...
14
votes
1answer
15k views

GDB crashes with: ImportError: No module named libstdcxx.v6.printers

I have a problem with GDB. Whenever I try to debug any C++ program, just after running it, GDB gives this error: (gdb) run Starting program: /home/errikos/Workspaces/tests/a.out Traceback (most ...
14
votes
1answer
2k views

Is there a detailed API documentation on the python binding for appindicator?

I'm getting serous with a project of my own and need a good documentation on the appindicator module for python. What I've found so far: API documentation on dev.ubuntu.com Community wiki entry API ...
14
votes
0answers
329 views

How to develop a System Indicator for Unity?

This is not a duplicate of How to create Unity indicators?. I'm looking for system indicator not application indicator. Backgound: From these two questions: How do I add or manipulate ...
13
votes
4answers
5k views

Writing indicators with Python, GIR and GTK3

I'm writing an application that needs to use an indicator. I've done this in the past using PyGTK and GTK2, using as reference this document: ...
13
votes
3answers
3k views

How do I call a dialog for authentication?

I am writing a gui program using wx module in python. In program whenever I am accessing a folder which requires root privilege then it asks password at terminal but I want to display the dialog to ...
13
votes
2answers
4k views

I have installed python-doc. How can I access it?

Sorry if this is a such an obvious question, but where does Ubuntu put documentation packages for python, node.js, redis, mysql, mongodb, and other applications? And why I cannot access it by typing ...
13
votes
2answers
11k views

How do I install packages with pip when there are multiple Python versions?

I have different versions of python installed, python 2.7 being the default and 3.2 the second. Now I want to install pyramid to the 3.2 installation. How can I do this? Just using pip to install ...
12
votes
2answers
15k views

Install python 3.5 on vivid using apt-get

How can I install Python 3.5 on 15.04 Vivid using apt-get? Obviously I realise I can install Python 3.5 using the source tar ball, however I would prefer not to install from source and instead use ...
12
votes
2answers
9k 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
2answers
87k 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 ...
12
votes
4answers
17k views

Unable to download videos using youtube-dl ('sig error'), how to correct?

I used to download videos using youtube-dl command line tool, from the past two days whenever i try to download any video I get an error as shown below. $ youtube-dl ...
12
votes
3answers
2k views

Where to store user settings for an app?

If I want my application to store a few settings, that persist when an application closes, then where should I store them? I'm not talking anything complicated: two booleans and a string (although in ...
12
votes
3answers
5k views

How to use Rhythmbox python console

Maybe this is obvious and I am missing it, or maybe someone's already written a great guide and my (seeming exhaustive) googling is failing to turn it up, but I cannot figure out for the life of me ...
12
votes
1answer
10k views

How do I use Python with apache2?

I'm trying to get Python working with Apache, however I'm failing to have success with either CGI or mod_python. Does anyone know a good tutorial or something? Thanks.
12
votes
2answers
823 views

How to Change Quickly's Editor?

I've just downloaded Ninja IDE and I really like it's interface. Is there a way to configure the Quickly app to launch my project in Ninja IDE when I type quickly edit?
12
votes
1answer
8k views

What language(s) can I use in LibreOffice for macro scripting?

Not finding any info online; I hope somebody here knows. It was Python in OpenOffice; is it still Python? Or are they moving to gasp VBA?
12
votes
3answers
10k views

How to install and configure IPython so it uses Python3.2 on 11.10?

How to install and configure IPython so it uses Python3.2 on 11.10? I've checked that by installing sudo apt-get install ipython will use python2.7. [EDIT1] $ sudo python3 configure.py ...
12
votes
1answer
303 views

Promoting an app in the Ubuntu Software Center through a ratings and reviews API

As an app author, I would like to promote my app in Ubuntu. One nice way to do it is to encourage users to submit their reviews and ratings to the Software Center. It would be really cool if I could ...
12
votes
3answers
4k views

How can I install numpy on Python 3.1?

I have Ubuntu 10.10 server on EC2. I installed Python 3.1, and now I want to install NumPy on it. How do I do it? I tried easy_install-3.1 numpy but got this error: RefactoringTool: Refactored ...
11
votes
3answers
23k views

How do I make the terminal run python 3.1?

Currently, when I type "python" at the terminal I get v2.6 which is all fine and dandy but how can I set it to use v3.1 instead? Is there a "path" variable out there somewhere that I can change like ...
11
votes
3answers
469 views

Is there a Perl or Python script I can write which can minimize the Gnome terminal window?

I'm on Ubuntu 14.04 with the old-style GNOME setting from the GDM. (I don't like the new Unity interface.) Is there a way I can create a command that I can type in my terminal window to minimize it? ...
11
votes
3answers
51k 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
3answers
6k views

How do I run a script when a Bluetooth device connects?

I'd like to start my music player (Clementine) when my bluetooth headset connects to my computer. How do I detect the bluetooth device connecting so I can run a script to start the player?
11
votes
2answers
990 views

Quickly template for PyQt?

Because I like Qt and Python, is there a Quickly template for PyQt similar to the PyGTK one?
11
votes
2answers
1k views

Is PyGTK still relevant?

I'm new to Linux but not to app development. I come from a RealBasic on a Mac background. I've accepted that I need to learn a new language to develop for Linux (since RB won't run on 64 bit distros ...
11
votes
1answer
350 views

Show personalized banner exhibits on Ubuntu Software Center

How can I show my own personalized banner exhibits on Ubuntu Software Center? I've seen some URL definitions on /usr/share/software-center/softwarecenter/enums.py and ...
10
votes
2answers
2k views

Symbolic links: why are they so bad?

Why is using symbolic links to change the default python version on Ubuntu considered as being unsafe ? I read this information on several forums but did not find an answer as to why is this so.
10
votes
2answers
33k 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 ...
10
votes
5answers
2k views

Why do most GNOME developers prefer Python over Java for GTK+ programming? [closed]

I only know C and Java. And I really don't want to learn another language when I can work with what I already know. I haven't ever written a GTK+ application, but I am planning to start with an ...
10
votes
2answers
10k 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
838 views

How do I make a rich menu for an appindicator?

I'm adding menu items to an appindicator in pygtk. I don't want them to behave like ordinary menu items: I want them to have normal appearance, but not to respond to mouse hovers and mouse clicks. The ...
10
votes
1answer
1k views

How to create a new Quickly application template?

Cannot find the answer elsewhere, I'm asking for a documentation of the process to create a new template for quickly. I'm interested in writing a pyside (python + qt4) template like the pygtk one. ...
10
votes
1answer
877 views

How do I make the launcher progress bar work with my application?

Background Research I am attempting to update the progress bar within the Unity launcher for a simple python/Gtk application created using Quickly called test; however, following the instructions in ...
10
votes
2answers
283 views

How do I use get_media_file() in the latest Quickly?

I am writing a project with Quickly and GTK 3 and I want to use the get_media_file() helper so I can load an icon in my data/media directory. I can't see how I use get_media_file() with the latest ...
10
votes
1answer
4k views

Is it possible to call Python functions from Libre Office Calc?

Consider the following simple Python function: def mysum(a, b): return a + b I would like to put =mysum(5, 7) in a cell of the Calc spreadsheet, so that is simply returns the number 12. Is this ...
10
votes
4answers
463 views

How do I add a daemon to my Quickly application?

I am building a app with quickly, and I wanted to add a daemon that will run in the background. How do you do this?
10
votes
2answers
592 views

Quickly application with ListStore as preference

I'm starting to write a program with 'quickly'. A list of desired languages will be one prefereces. Example: languages = ["en", "de"] The (automaticly created) quickly code that handles the ...