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

learn more… | top users | synonyms

3
votes
2answers
195 views

Basic steps to develop python API in Unix environment

I am developing an API in Unix environment for virtual machines. Most of the modules are developed in python. I have few questions on this. I have the file extension as abc.py. I would like to make ...
3
votes
2answers
333 views

Rescue value from second last line

After I run a script, I've got the following lines: PyMOL(TM) Molecular Graphics System, Version 1.4.1. Copyright (c) Schrodinger, LLC. All Rights Reserved. Created by Warren L. DeLano, ...
3
votes
3answers
8k views

Multicast UDP not working

Multicast UDP on raspberry pi I haven't narrowed things down enough to know if my issue is because of debian, raspbian specifically, or if I am just missing a something completely. I have a python ...
3
votes
2answers
1k views

Clearing/modifying previous libnotify notifications?

I have written a script which generates notifications like this: notify-send -i audio-card "Transferring audio playback to speakers." \ "Audio playback has been transferred to the analog output ...
3
votes
2answers
1k views

case sensitive substitution; same target ids

I am struggled myself to make a case sensitive replacement in a text file. Please find below a segment of my sed file that I am running as sed -f file.sed < input.txt > output.txt ...
3
votes
1answer
202 views

Count and merge consecutive patterns

I'm searching for a short snippet to find, count and merge consecutive duplicates using standard tools or a common scripting language. Say our input is: 1 2 2 2 7 22 a b b c c c c c d dd 2 2 c c ...
3
votes
1answer
466 views

When I am in VirtualEnv and do apt-get install, is there any difference?

If I have a virtualenv activated when I do something like sudo apt-get install python2.7-dev should I expect different results than if I did it outside the virtual env? Limited theory says no, ...
3
votes
2answers
30k views

How to properly install Python packages?

I run a Slackware system and I'm trying to run some Python code, but getting a lot of errors such as this one below: >>> import urllib2 Traceback (most recent call last): File ...
3
votes
2answers
85 views

echo $PATH shows path to python scripts, but they cannot be executed

I am new to using the shell, and wanted to create a directory in $HOME where I can put all my python scripts, set a path to that directory, so that I can go into any folder on my Mac and execute those ...
3
votes
1answer
2k views

Help me repair my python - I think dpkg has to be reset (very tricky issue)

first question in Unix & Linux - I really hope, someone can help... Summary (TL;DR) On my Kubuntu 14.4 (which has python 2.7.6 as standard) my python is broken after I tried to install python ...
3
votes
1answer
179 views

Issues with Skyperious

I am trying to install Skyperious on Ubuntu 13.10, I have installed all the required dependencies, my python version is Python 2.7.5+. When I run the following code from terminal python main.py ...
3
votes
1answer
733 views

Output of a python script running as unit is out of order while shells seems unnafected

How would I get all outputs of systemd managed python2 script instantly into journal, just like it appears in terminal I'm on centos 7, but seems to be same on arch according to systemd manual, ...
3
votes
2answers
5k views

'NoneType' object has no attribute 'decompressobj' while installing Bootstrap setuptools

I have just started (as in 30 minutes ago) to use Ubuntu 12.04 (all my previous experience is with windows) and I just started to learn how to program a couple of weeks ago so this is probably a ...
3
votes
1answer
119 views

Grepping a variable

I've written a simple init script to start and stop a Python script as a service. I have to be explicit about the version of Python I'm running, because this is on a CentOS 5 box with Python 2.4 & ...
3
votes
1answer
5k views

How to change the default version of Python in Debian 7.5?

I'm using Debian 7.5, and I've installed Python 3.3 and 3.2. How do I make 3.3 the default for when someone types python in the command line?
3
votes
1answer
72 views

Bulk downloading PDFs

This may/may not be possible using bash happy for a suggestion in Python if there is one. But I would like to download all the PDFs/ePubs from the following link https://mises.org/library/books ...
3
votes
2answers
357 views

How to locally install .deb without apt-get, dpkg or root access?

I'm using python on a Linux cluster (without root access) and want to use the numpy module. After downloading numpy from Numerical Python, extracting and trying to install it with: python setup.py ...
3
votes
3answers
862 views

Replace multiline string in files

I have a number of files I want to update by replacing one multi-line string with another multi-line string. Something along the lines of: * Some text, * something else * another thing And I want ...
3
votes
1answer
2k views

Python.h: No such file or directory

I'm tring to build omniORB 4.1.6 under Arch Linux, however when I type make, here is the message: ../../../../../src/tool/omniidl/cxx/idlpython.cc:188:26: fatal error: python3.3/Python.h: No such ...
3
votes
1answer
236 views

Suddenly I have troubles plotting with python

I have a code that I used yesterday to generate plots. Today, when I tried to use it (with the same input as yesterday), I get an error: QGtkStyle was unable to detect the current GTK+ theme. ...
3
votes
6answers
8k views

Python 2.7 on CentOS 5

Are there any half-official repositories for CentOS 5 with Python 2.7? EPEL provides only Python 2.6
3
votes
2answers
1k views

Using Python and Scapy to sniff for ARP on Pi

I'm trying to use a Raspberry Pi to find ARP requests from a specific wireless device on my network. It's one of those Amazon dash buttons. Someone used this code to listen to when the dash connects ...
3
votes
1answer
441 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 ...
3
votes
1answer
200 views

How to catch mount events on Linux?

I want to somehow get notified if a mount or unmount occurs for a USB drive. At the moment I use udev and then wait for x seconds for a new entry in /proc/mounts. This works ok if the mounting is ...
3
votes
1answer
573 views

fail2ban permission denied on script

I've just upgraded from RHEL 5 to 6.5 and setup fail2ban anew. I can't seem to get my custom action to work now, supposedly because of a permission issue. I wan't to know what am I doing wrong, and ...
3
votes
4answers
505 views

How can I disable the new history feature in Python 3.4?

Since upgrading to Python 3.4, all interactive commands are logged to ~/.python_history. I don't want Python to create or write to this file. Creating a symlink to /dev/null does not work, Python ...
3
votes
1answer
1k views

Python script run while screen is locked

I have a python script which seems to be failing to continue running its while True: ... sleep() loop my code is at http://github.com/xdaimon/xdaimonConky What happens is I autostart python on ...
3
votes
2answers
2k views

python3 traceback error

Whenever I mistype any command in terminal instead of getting Error:Command not found I get this python message error Traceback (most recent call last): File "/usr/lib/python3.3/site.py", line ...
3
votes
2answers
3k views

py3compile error - Unable to get the locale encoding

After reinstalled the python3.2, I got the error as below when call py3compile: Fatal Python error: Py_Initialize: Unable to get the locale encoding LookupError: no codec search functions registered: ...
3
votes
0answers
31 views

What is wrong with my systemd unit file?

Here is my unit file: [Unit] Description=Backend Service After=mariadb.service Requires=mariadb.service [Service] Type=simple ExecStart=/var/www/html/pythonscripts/Backend.py [Install] Alias=BEd ...
3
votes
1answer
182 views

is there a way to get the url from current tab in google-chrome?

I used to do that on firefox using a python command, but recently something changed and I can't get the URL anymore! What used to work with firefox: #!/bin/bash current_tab_num () { python2 ...
3
votes
0answers
164 views

ViM and Python says the encoding is ANSI_X3.4-1968

In ViM, the following command (using Python 3.4.3) outputs ANSI_X3.4-1968: :!python -c "import sys; print(sys.stdout.encoding)" However, I want UTF-8 everywhere. In .vimrc, I do have set ...
3
votes
1answer
543 views

Finding certain X window with Python's Xlib

I am trying to find an unmapped window on my X server in order to map it back and send it some EWMH hint. Because the window is unmapped I cannot use EWMH to ask the window manager directly. So I am ...
3
votes
1answer
67 views

How to determine the current Enhanced Zoom factor in Compiz?

When I use Skype :( need to, rather than want to ), I find that I sometimes want to open the main menu, but it doesn't have a shortcut key assigned to it (well, not one that I can find). I have ...
3
votes
0answers
688 views

“Operation not supported” for setfacl inside a python script [closed]

I've programmed a script using python which logs in as root on the host machine and executes some commands. Therefore it uses ssh. I want to setup acl. If I do following commands in the command line, ...
2
votes
5answers
7k views

Execute shell commands in Python

I'm currently studying penetration testing and Python programming. I just want to know how I would go about executing a Linux command in Python. The commands I want to execute are: echo 1 > ...
2
votes
3answers
1k views

How can I replace bash with Python?

According to the accepted answer for this SO question: , Python can make a great bash replacement. My question then, is this: how do I go about seamlessly make the switch? I think the main thing to ...
2
votes
5answers
2k views

How can I run a process in a terminal window and then hide that window?

I want to run python ~/program/proxy.py in a terminal when I boot up. And then hide this terminal window (because it is just a proxy program, and I don't want to see the debug info). So how can I get ...
2
votes
3answers
214 views

Writing a program for editing .txt data - Python or Unix?

I only have little experience in programming, and I'm currently working on improving my skills. Basically, I need to write a program, that can do some specific processes to some data in a .txt file. ...
2
votes
3answers
13k views

On Red Hat Enterprise Linux 6.2 how can I use Python 2.7 as default not Python 2.6? I did but still showing 2.6?

RHEL 6.2 I have python 2.6 but I need default python 2.7 using yum packaging (so that nothing goes messed up, cause its a heavy duty working system, all I need the python 2.7 on it, without messing ...
2
votes
2answers
230 views

stderr gets flushed before stdout, when using file logger

My python code: import sys print "i am a daemon" print "i will be run using nohup" sys.stderr.write("i am an error message inside nohup process\n") When i run the code as python a.py, it shows, i ...
2
votes
1answer
3k views

Why does apt-get in Ubuntu still want to install Python 2.7?

New Linux VPS, installing Python and a few other tools I like to use. Did apt-get update and apt-get upgrade, and I noticed when I did apt-get install python it defaulted to version 2.7. (I can, ...
2
votes
3answers
520 views

What should someone know about using Python scripts in the shell?

I'm wondering what should someone generally know about Python(the interpreter) when using it in the shell in Linux? This is what I have on Gentoo: # ls -al /usr/bin/python*; file /usr/bin/python; ...
2
votes
3answers
1k views

Distributions that only ships Python 3.X

Is it possible currently? I tried to remove python in Fedora 19 but yum depends on it.
2
votes
1answer
1k views

Running 'make test' on an individual module for Python 2.7.4 build

I am working on building Python 2.7.4 on CentOS 6.4. When running the make test step, the test_gdb step fails, and I would like to get some more info as to why. Build commands I'm running: ...
2
votes
4answers
2k views

pysqlite install error on FreeBSD in virtualenv

I am trying to install pysqlite using pip under a virtualenv in FreeBSD 7.3, with Python version 2.6.2. I didn't have any issues for installing other packages like Django, PIL etc. All of them I ...
2
votes
3answers
746 views

How to install StackApplet on Debian?

I would love to install StackApplet on Debian 6.0.2! I downloaded 'stackapplet_1.4.0_all.deb' and ran following command: root@debian:/home/dagrevis/Downloads# dpkg -i stackapplet_1.4.0_all.deb ...
2
votes
2answers
82 views

Why is mail-utils / cron sending out so many emails?

I was trying to troubleshoot why my Raspberry Pi isn't sending emails with ssmtp / mail-utils, and so I opened up my gmail account that I use for the Pi. To my surprise, there were 15k unread emails ...
2
votes
2answers
395 views

How does a parallelized Python program look with top command?

I work on a shared cluster. I've seen people run parallelized c code on this cluster which, when I use top to see what processes are running, are shown to be using (for example) 400% of the CPU, ...
2
votes
1answer
7k views

upgrade Python to 2.7.2

I have an embedded system running on Python 2.6.5 and i want it to upgrade to 2.7.2 (I have a running system with different kernel that runs 2.7.2). I have copied the binary but then it told me: ...