Python is an interpreted, general-purpose high-level programming language whose design philosophy emphasizes code readability.

learn more… | top users | synonyms

2
votes
1answer
291 views

Piping periodic data between Python scripts

How to receive data from the environment e.g. bash I am trying to launch two Python scripts in bash and pipe stdout from one of them to stdin of the other. The first script outputs a single ...
2
votes
1answer
1k views

Unable to install SciPy

I need to use the module skimage, which calls the module SciPy (I need to find contours) import numpy from sys import argv from PIL import Image from skimage import measure # Inicialization ...
2
votes
4answers
626 views

Keep running program requiring X server after logging off of ssh session

I have a python script that periodically generates a png image, and puts it on a server that I can access through a browser. The image displays the progress of a job I am running on the server. I'm ...
2
votes
2answers
5k views

Run a sudo (or startup) python script from cron on a Raspberry Pi?

I'm helping out with an art project (http://stargateeggbeater.com/ for those interested) built on Raspberry Pi. The RPi controls an addressable LED strip through the GPIO, using the spidev device per ...
2
votes
1answer
176 views

Change the default shell to Python

If I changed my default shell from BASH to Python3 or IPython, would my Linux system have issues or produce errors?
2
votes
1answer
349 views

Where are Python dist-packages stored in FreeBSD?

I am trying to find this path on FreeBSD but it is not working: /usr/local/lib/python2.7/dist-packages This same path is working on Ubuntu. Can please some tell me where I can find Python ...
2
votes
2answers
45 views

Start Repl/CLI in Background and Feed Commands

Lets say the python repl takes a long time to start up, is there a way to start it up in the background so I can create an alias and feed it commands like python-current "command to run".
2
votes
1answer
109 views

Vim :fold of python code not different to C/C++ code

When I enter the command :fold inside my python code in .py files, Vim inserts the /*{{{*/ and /*}}}*/ tags. They, of course, cannot be parsed by python interpreter. When I'm in python I would like ...
2
votes
1answer
137 views

What is the source of truth for currently active tty/pts connections?

I'm looking for a simple way to determine the number of currently logged in users, using only the filesystem and basic bash functions (instead of using binaries). The uptime binary appears to be ...
2
votes
5answers
2k views

CUPS - check if print successful (either python or in system)

EDIT: I forgot to make it clear I'm using python and pycups. The code is python but I shouldn't have thought that was enough. I've dug through the cups documentation a few times and couldn't find ...
2
votes
1answer
725 views

Subprocess.call() and gunzip error

I'm trying to use Python's package subprocess to gunzip and gzip files. I'm using the following command: subprocess.call(['gunzip', a_path+myfile_gz], shell=True) Then I get the error message: ...
2
votes
2answers
2k views

What does this python2 error mean, and what should I do about it?

Whenever I attempt to use an application relating to python2(gnome-tweak-tool, bzr, etc.) it fails to start and, when run from command-line, I get this error: [username@host ~]$ gnome-tweak-tool ...
2
votes
1answer
232 views

Key-binding to open a terminal running python in ratpoison

In my .ratpoisonrc file I'm failing to write a key-binding to open a terminal running python. I'm running a minimal Debian setup on which I basically just run emacs. Sometimes I want to just get a ...
2
votes
2answers
3k views

How to execute this particular shell command from Python?

OK, so, I have this non-functional shell script, which I am rewriting piece by piece in python, except I am getting an "unexpected "|" error" from the shell (see below): #/bin/sh LINES=`cat $@ | wc ...
2
votes
1answer
148 views

Get 'python-keyring' to stop prompting for 'encrypted keyring' password

Situation: I followed these instructions (http://mercurial.selenic.com/wiki/KeyringExtension) on setting up the mercurial keyring-extension for mercurial. On a Ubuntu 12.04.4 (precise) machine it ...
2
votes
1answer
125 views

Why is my pip-installed Python script not executable for everyone?

In my Vagrant instance: vagrant@archlinux:~$ sudo pip2 install vcard Downloading/unpacking vcard Downloading vcard-0.9.tar.gz Running setup.py (path:/tmp/pip_build_root/vcard/setup.py) egg_info ...
2
votes
1answer
24 views

How to use a custom library for certain programs?

Here's my situation. I'm running Centos 7, have the standard version of libcurl as provided by my package manager, and several programs that depend on libcurl. One of them is pycurl, a python ...
2
votes
1answer
225 views

Permission denied in scripted chroot jail

I am attempting to script the creation of a chroot jail (I know that there are tools for this, but I am in it for the experience, so please don't recommend a tool). I have a script which looks up ...
2
votes
1answer
363 views

Python failing to import winregistry

I'm trying to use secretsdump.py, which relies on winregistry.py. The error I'm getting is: Traceback (most recent call last): File "secretsdump.py", line 41, in <module> from impacket ...
2
votes
1answer
782 views

How to install Node.js in CentOS 5.10 with Python 2.4?

I want to use Grunt on websites we have hosted on our WHM dedicated server. It is running CENTOS 5.10 x86_64 standard with WHM 11.42.1 (build 21). It is critical that things do not break, as we have ...
2
votes
1answer
136 views

Application lags if started from init.d?

I have a program (pre-compiled binary) that, when started manually on linux, runs fine. It has a CLI that I use to enter commands. This program is a software router, I can connect to it's CLI to ...
2
votes
1answer
2k views

How to check the status of bash shell script while executing from Python script?

I have a simple Python script which will execute a shell script using subprocess module in Python. Below is my Python shell script which is calling testing.sh shell script and it works fine. import ...
2
votes
1answer
951 views

ffmpeg webcam to device driver , output 8 bit grayscale

With the following command i'm trying to capture 10fps and send them the device driver. Now i want 8 bit gray raw frames (640x480= 307200 bytes per frame) to be send to the device driver. I can't ...
2
votes
1answer
335 views

Installing pyside on Fedora 19

I'm trying to install pyside from source on Fedora 19. Running sudo python setup.py bdist_egg --version=1.2.0 --qmake=/usr/lib64 gives: HEAD is now at 92062bc... Version bump to 0.2.14 Checking out ...
2
votes
1answer
231 views

apt-get can not detect correct python version when using update-alternatives for python

I have installed different python versions on my Linux Mint DE. I used the update-alternatives --set statement to easily switch between the different versions. Unfortunately sometimes apt-get install ...
2
votes
1answer
78 views

process continous output of synclient

I am using synclient to track the position of finger on the touchpad. I use the following command. synclient -m 100 | awk '{print $2,$3}' This command gives the 'x' and 'y' co-ordinate on the ...
2
votes
1answer
141 views

Can't open Gajim

When I try to open Gajim using terminal on gnome I get the following: Traceback (most recent call last): File "gajim.py", line 106, in <module> import common.configpaths File ...
2
votes
1answer
460 views

Installing trac - “Trac requires Python 2.5 or later”

I am having a little trouble getting trac 1.0 installed via easy_install: [box]# easy_install Trac==1.0 Downloading ...
2
votes
1answer
938 views

New files and folders created, automatically inherit same permissions as parent folder

Does it exist? I create a folder with, let's say, all permissions set, and some services (i.e. Apache web server) create subfolders and put files there (uploaded media files from website users). Such ...
2
votes
1answer
210 views

Will I break debian etch if I install python-support 0.7.1 to it?

I try to install s3cmd into my debian etch, but the following error message comes up: root@NAS-01G:~/src$ sudo apt-get install s3cmd Reading package lists... Done Building dependency tree... Done ...
2
votes
2answers
3k views

FreeBSD: How to install Django with mod_wsgi?

Using FreeBSD 8.2-RELEASE. I want to mess around with Django and I want a working setup on my freebsd system. My understanding is I need to install python, apache, mod_wsgi, and django. The ...
2
votes
1answer
208 views

Virtualenv creation seems to do nothing

I have a problem setting up a Virtualenv on my web host server (to install python modules later on) So far I tried this (over SSH): wget ...
2
votes
1answer
647 views

pysvn fails to make due to -lneon not found?

I am trying to install pysvn on my CentOS server and it says that -lneon is gone. After searching their mailing lists for a bit I found what neon means but it doesn't say how can I get it? Here's my ...
2
votes
0answers
67 views

Can I connect to Multiple Bluetooth devices using a Bluetooth dongle?

I am using a usb bluetooth adapter on my PI 2 , which communicates to an arduino using HC-06 Bluetooth module. This script runs to connect to that module: #! /usr/bin/python import serial from ...
2
votes
0answers
38 views

Catch/diagnose user process being killed - Inexplicably logged out automatically

Context: I'm using bash in Mac OSX Yosemite. Problem: I'm executing a (python) script that I expect to use alot of resources and take a few hours to run, redirecting stdout and stderr to a log file. ...
2
votes
0answers
62 views

Display cron job times in a human-friendly format

Is there a way to display or is there a tool that can parse a crontab expression and display it in a human-friendly way? 10 6 * * * sh /usr/local/crons/file_check.sh For example, for the above cron ...
2
votes
0answers
50 views

arecord until sound level drops low enough

I am trying to implement constant voice recognition on my Pi at the moment, I am achieving this by having two threads running, one constantly recording (with arecord in a bash script) for X amount of ...
2
votes
1answer
85 views

readline - why does does it only do carriage return and not a line feed when reaching end of line?

I developped a python application that uses the cmd module to make an interactive command-line interface. This cmd module uses readline for command-line management: completion, history... My issue ...
2
votes
0answers
100 views

How do I execute a program in Xfce and make it use another xfwm4 theme other than the default one?

I want to run a python script (the one in the answer to Python - how to make transparent window with gtk.Window but not with Gtk.) that displays a transparent window. I'm running it from a bash script ...
2
votes
0answers
79 views

Install `mpl_toolkit.basemap` on RedHat without compiling from source

I need to install matplotlib and mpl_toolkit.basemap on a RedHat machine. matplotlib is already installed but for mpl_toolkit.basemap the only way I could find was to download the source and compile ...
2
votes
0answers
146 views

listen a power-button event in Python (no ACPI)

I am using a Debian machine which does not include the acpid package. Is there a way that I can reboot the machine using Python language when the power-button is pressed, without installing that (or ...
2
votes
0answers
529 views

FreeBSD: How to start a python script as daemon?

I'm facing an issue with a python file that I'd like to start as a service. I named my service ocrserver and the script I want to start is in /home/administrator/ocr/ocrserver/init.py with some ...
2
votes
0answers
149 views

mozilla sync server and mysql auth

Recently I updated my debian squeeze to wheezy. Unfortunately my firefox sync server (weave) stopped working. I saved the config files and downloaded the new version via hg. I already fixed some ...
2
votes
3answers
796 views

installing eric5 in CentOS 6.4

I am trying to install Eric Python IDE 5 in my CentOS 6.4. The problem here is even I have installed PyQT4 its again saying that module is missing. what I am supposed to do ? here is the terminal log ...
2
votes
0answers
390 views

avconv/ffmpeg output through /dev/ttyAMA0

I tried to pipe streaming video from video4linux2 webcam connected to a Raspberry Pi through /dev/ttyAMA0 to a computer using an Arduino as a intermediary. First of all, is it possible? Because I was ...
2
votes
0answers
59 views

Losing sound after installing wine 1.5 (+python 2.7)?

I have a desktop and a laptop computer. Since I wanted to run IrfanView (that works great now!), I installed wine 1.5.22, which involved installing 1 GB of dependencies. The desktop continues to work ...
2
votes
0answers
1k views

MySQL socket and PHP (and other languages)

Background info I'm currently running CentOS (or Red Hat?). uname -a gives (I edited out my domain name) Linux XXXXXXXXX.com 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011 x86_64 ...
2
votes
0answers
258 views

Why am I getting an AttributeError when I try to use Pyjamas desktop on Fedora 15?

I am trying to run pyjamas-desktop on my Fedora 15. All packages were installed, I have adjusted PYTHONPATH to include /usr/share/pyjamas/library, but when I try to run a simple example: from ...
1
vote
3answers
219 views

*nix whose package manager DOES NOT split Python into multiple packages

Is there a *nix whose package manager doesn't split Python into multiple packages (typically something like python and python-devel). I'd really like to just get the entire standard library when I ...
1
vote
5answers
84 views

Replicate a column in a one-line CSV file

I have a file that consists of a single line: a,x,b,c,d,e I want to convert this into a,x,b,x,c,x,d,x,e,x Which is the easiest way to achieve this? A solution based on Python will be most ...