Python is an interpreted, general-purpose high-level programming language whose design philosophy emphasizes code readability.
17
votes
3answers
4k views
How does /usr/bin/env know which program to use?
When I use the shebang #!/usr/bin/env python to run a script, how does the system know which python to use? if I look for a python bin path in the environment variables I find nothing.
env | grep -i ...
13
votes
2answers
6k views
What is the proper way to manage multiple python versions?
I have a machine with Python 2.6 installed as the default Python. Then, I installed Python 2.7, and manually created /usr/bin/python as a symlink to the new installation.
Then, I was running into ...
11
votes
5answers
4k views
Using different versions of Python
Background:
Since I develop python programs that must run on different python versions, I have installed different versions of python on my computer.
I am using FC 13 so it came with python 2.6 ...
11
votes
2answers
5k views
Best way to upgrade vim/gvim to 7.3 in Ubuntu 10.04?
I have to use Ubuntu 10.04 at work, and cant upgrade it. I'm using Vim/gVim 7.2.
I want to upgrade it to 7.3 (with Python and Ruby extension support). Which is the best way? Add an entry in ...
10
votes
5answers
3k views
How can I use environment variables in my shebang?
I have a Python script that need to be run with a particular python installation.
Is there a way to craft a shebang so that it runs with $FOO/bar/MyCustomPython?
9
votes
2answers
3k views
How can I rename photos, given the EXIF data?
Let's say I have a bunch of photos, all with correct EXIF information, and the photos are randomly named (because of a problem I had). I have a little program called jhead which gives me the below ...
9
votes
2answers
643 views
How to manage huge amount of files in shell?
$ ls
./dir_with_huge_amount_of_files/errors/
Suppose a directory is full of pictures with unix timestamps, I mean a lot measured in many GBs or even more. Shell-commands like ls will get ...
8
votes
2answers
699 views
View Script Over SSH?
A friend, using a remote machine, SSHed to my machine and ran the following python script:
while (1):
....print "hello world"
(this script simply prints 'hello world' continuously).
I am now ...
8
votes
1answer
539 views
python == python2 OR python == python3 ? How to package, distribute python py2k scripts?
Depending on system, python==python2 or python==python3.
Executable Python scripts, starts with:
#!/usr/bin/env python
#!/usr/bin/env python2
#!/usr/bin/env python3...
For python py3k it is ...
7
votes
3answers
5k views
Why is this python error message generated whenever I type a nonsense command?
Whenever I type any "nonsense" command, this python error message is generated. Normal commands work fine. Any idea how to debug this?
$ somenonexistingcommand
Traceback (most recent call last):
...
7
votes
1answer
407 views
Problems running python script from motion
I'm trying to set up the raspberry pi with my webcam as a motion detecting cctv that uploads the videos to google drive using Jeremy Blythe's script
I have motion working correctly and the python ...
7
votes
3answers
360 views
Is it possible to execute scripts in BIND based on lookup
Is it possible, to set up BIND as DNS server on my local network, and make execute scripts when it gets a lookup?
I would like to execute a Python or Bash script, based on the incoming DNS lookup, ...
6
votes
5answers
702 views
How can I have more than one possibility in a script's shebang line?
I'm in a bit of an interesting situation where I have a Python script that can theoretically be run by a variety of users with a variety of environments (and PATHs) and on a variety of Linux systems. ...
6
votes
4answers
468 views
Hybrid code in shell scripts. Sharing variables
This answer discusses how to run a multi-line Python snippet from the command line in a terminal. I noticed that the answer works great within shell scripts, even with nested indentation, which is ...
6
votes
1answer
5k views
How can I start the python SimpleHTTPServer on port 80?
I am using this command on Ubuntu but it is starting on port 8080 and I don't have another server running so I'd like it to start on port 80. I saw ways that you could set up a bash script to do ...
