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

learn more… | top users | synonyms

2
votes
1answer
5k 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
2answers
389 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
3answers
225 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
646 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
3k 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
761 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
159 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
6k views

How do I correct the path for pip?

I'm trying to get pip to point to a different install rather than the default. It is currently pointing to /usr/bin/pip, but I want it to point to /usr/local/bin/pip. I believe I have the path set ...
2
votes
1answer
2k views

What does PIP stand for? [closed]

What does pip stand for? Does it stands for Python Package Installer? No, I don't think so, it is PPI
2
votes
2answers
468 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
9k 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: ...
2
votes
3answers
964 views

Debian 7.1: duplicity error when using gdocs backend

I've installed duplicity backup tool plus python-gdata library on my debian 7.1 amd64 system. When I want to use duplicity to store my documents on Google Drive, it shows this error after asking for ...
2
votes
1answer
200 views

emacs python2.7

I would like to have emacs work as a python ide for me. I can't seem to find how to compile from within emacs. I'm using python2.7 but when I do M-x python-mode it seems to compile using python2.7. Is ...
2
votes
2answers
79 views

Why won't this bash command run when called by python?

The command $ find ~/foo/ -type f -iname "*.txt" -print0 | parallel -0 cat uses GNU Parallel to print all the .txt files under ~/foo/. I have a python script where I want to call this bash ...
2
votes
2answers
135 views

Is it possible to pass arguments into a Python script?

I know how to pass arguments into a shell script. These arguments are declared in AWS datapipeline and passed through. This is what a shell script would look like: firstarg=$1 secondarg=$2 How do I ...
2
votes
1answer
64 views

python Vs bash string slicing

My file a contains the text, bcd\\\\. With bash, i read the file and print characters from 4th to 8th position as, tmp=$(cat a) echo "${tmp:3:4}" It prints, \\\\ All happy. Now i use python'...
2
votes
1answer
3k views

How to activate Virtualenv when a Python script starts?

I want to schedule a python script to run using cron on certain dates, the problem is that in order for example.py to work, example-env has to be activated, is there a way to make example.py activate ...
2
votes
2answers
2k views

Invoke python script through make command

I have a tool with 5 python scripts say A.py, B.py, C.py, D.py and E.py. I have to run this program in Linux. A.py is the one program I run which imports other files and uses them. For running A.py, I ...
2
votes
1answer
185 views

How to monitor the opening and closing of files?

I'm writing an AI personal assistant. One part of the software is a monitor daemon. A small process that monitor's user's active windows. I'm using python( with libwnck and psutils for obtaining info ...
2
votes
1answer
1k views

Can't install Python3 package in Debian 7

I get error while installing python3 in Debian 7 (I have all updates installed): root@nuclight:~# aptitude install python3 The following NEW packages will be installed: python3 python3.2{a} 0 ...
2
votes
3answers
4k views

'ImportError: No module named _struct' error when managing packages

I'm running elementary OS 0.2 (based on Ubuntu 12.04) and starting today I'm seeing a weird error when attempting to install/upgrade packages. Just now for example I did a: sudo apt-get update ...
2
votes
3answers
145 views

Linux - preventing an application from failing due to lack of disk space

Due to an unpredicted scenario I am currently in need of finding a solution to the fact that an application (which I do not wish to kill) is slowly hogging the entire disk space. To give more context ...
2
votes
2answers
3k views

Arithmetic operations in regex

I am using gedit regex plugin (Python style regex). I would like to do some arithmetic operation on a backreference to a group. For example: PART 1 DATA MODELS Chapter 2 Entity-Relationship Model ...
2
votes
2answers
74 views

Make python file accessible from anywhere by all users

I installed a program that requires you to execute a python script like this: python fit_locus.py --help I want to make the file acessible to all users without requiring them to navigate to the ...
2
votes
1answer
40 views

File permissions while installing a python module

I would like to install sphinx-doc from the sources so I git clone the module then installed it with sudo python setup.py install. Using /usr/local/lib/python2.7/dist-packages/pytz-2016.4-py2.7.egg ...
2
votes
1answer
96 views

Why do I have so many python versions on my mac?

I'd like to get into scipy and first setup my macbook air for python development. The problem is I have many different versions of python installed - here is what I get when bash autocompletes "pyth": ...
2
votes
1answer
606 views

Python now thinks arguments are files: Broken emerge, pip, livestreamer and most tools using Python

For these commands (in both bash and fish): sudo emerge eix emerge eix I get this error: usage: emerge [-h] [--version] [input [input ...]] emerge: error: argument input: can't open 'eix': [Errno ...
2
votes
2answers
421 views

csvkit Permission denied

I am on Mac and installed csvkit. When I run csvlook, I get a traceback with the following error message: IOError: [Errno 13] Permission denied: '/Library /Pythong/2.7/site-packages/...
2
votes
4answers
340 views

Script to delete files that don't match certain filenames

I have a folder with 500,000 images, sorted in subfolders by year and month. I'd like to create a script that does this: If the filename does not match any of the filenames in names.log then delete ...
2
votes
3answers
12k views

How to include python script inside a bash script

I need to include below python script inside a bash script. If the bash script end success, I need to execute the below script. #!/usr/bin/python from smtplib import SMTP import datetime ...
2
votes
2answers
2k views

Can't import wx even after installing python-wxgtk2.8

I am running Linux Ubuntu 14.04 LTS and am trying to install wxPython so I can develop GUIs on python. I have python 2.7 and 3 installed but 2.7 in default. I have installed wxPython as recommended ...
2
votes
2answers
2k views

What should I do about Python 2.7.9 not looking for SSL certificates in the right place on FreeBSD?

I have a FreeBSD 10.0 system, and a couple of days ago, I upgraded my python27 port from Python 2.7.8 to Python 2.7.9, which enabled SSL verification by default. Unsurprisingly, it broke my existing ...
2
votes
2answers
276 views

Cron job not behaving as expected

So I have a python script that pulls down git/svn/p4 repositories and does some writing to a database. I'm simply trying to automate the running of this script and based from what I see in syslog it ...
2
votes
2answers
199 views

How to change my script to replace and add new variable in a configuration?

Well this is my script. It is to configure my systems sysctl.conf. infile = open('sysctl.conf') outfile = open('sysctl.conf.new', 'w') replacements = {'Net.ipv4.icmp_echo_ignore_all' :'1', ...
2
votes
3answers
872 views

Unable to access CentOS setup Network Configuration after attempting Python update

I attempted to update Python on my CentOS 5.6 VM and have encountered some issues afterward. Initially, yum wouldn't work, but I have resolved that. However, now I am unable to access the Network ...
2
votes
2answers
217 views

How do I remove the new environment commands that were created by the virtualenvwrapper script?

I've installed and run virtuarenvwrapper.sh to try to configure an alternate version of python on my system. This script has placed somewhere a series of commands that are now executed whenever I ...
2
votes
2answers
847 views

pipe function arguments to command line arguments in python

I have a python code (cmd.py) which accepts files as command line arguments and process using parse_args. I want to pass files from another code (files.py) to cmd.py, just like passing function ...
2
votes
2answers
452 views

why cpulimit makes process STOPPED?

I'm running a python script which uses networkx package to run some algorithms on graphs. the script is import networkx as nx from networkx.algorithms.approximation import clique G = nx....
2
votes
1answer
8k views

Numpy module not found despite being in path

I am having trouble with the module on python. Here is my path variable, /opt/local/bin /opt/local/sbin /Developer/usr/bin /usr/local/git/bin /usr/X11/bin /Users/oskarniburski/.rvm/bin /usr/X11R6/bin ...
2
votes
1answer
3k views

Pip install - CPU you selected does not support x86-64 instruction set

I'm trying to use pip install mysql-python inside a virtualenv container and am getting the error building '_mysql' extension gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-...
2
votes
3answers
2k views

How can I schedule a python program to run from another python program?

I'm running a Python program on my Linux server, and depending on some external data it has to run again at xx minutes or hours from now. So let's say it runs at 6 AM, and then it has to run again at ...
2
votes
1answer
1k views

Replace python built with UCS4 with UCS2

I've got fedora fc15 installed with python 2.7.1-7.fc15. It is built with ucs4 and I've got some packages here at work that are built with ucs2. I now cannot build other packages that use these ucs2 ...
2
votes
1answer
3k views

parsing process ID/names from /proc, thread IDs

When I'm parsing process IDs from /proc, obviously each thread of a process gets its own ID. And I realize that all the threads in that same process can be gathered from /proc/${pid}/task/. But my ...
2
votes
1answer
36 views

can't find documentation on json.tool [closed]

I can find scattered articles online that use json.tool to produce pretty python, but no clear documentation on usage. I checked docs.python. but there is no formal documentation of json.tool. I ...
2
votes
1answer
109 views

How do I use GNOME Keyring with Python Keyring in virtual environment?

I have written a Python script that I would like to run in the background on my Raspberry Pi. The script makes use of the Python module Keyring (link), which is used to access a keyring backend to ...
2
votes
1answer
84 views

Is it possible somehow to tell if a laptop is moved in a bash or python script?

I'm trying to figure out if there's a way to use a bash or python script to tell if my laptop gets moved. I had the idea of using wifi signal strength to do it, but the problem with that is that you ...
2
votes
1answer
284 views

Cron Job to Keep Daemon Running?

let us suppose I have a cron job like this: */15 * * * * /path/to/thedaemon The daemon (it being a python daemon via from daemon import runner) will not allow multiple instances of itself, which in ...
2
votes
2answers
106 views

Cron job is writing the error to error log but fails to write outputs to output log file

I have 2 python codes which i schedule using cron. My codes actually runs from 10:30am to 4:20pm everyday. from 10:30am to 11:00am my codes outputs 2-3 lines every minute and after that they start ...