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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
I want to capture the Ctrl+C ( SIGINT ) signal sent from the console and print out some partial run totals.
10 Answers
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How to access environment variable values?
... PYTHONPATH is used to add new search path to Python (sys.path) from outside Python. Have a look at docs.python.org/using/cmdline.html#environment-variables
– Rod
Feb 7 '11 at 14:41
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Get Android Device Name [duplicate]
...eliable to use android.os.Build.MODEL and assume all mobile devices / tabs from all manufacturers will display the same info. You need to create your own list if you want to match device model to device name.
– ChuongPham
Apr 7 '13 at 4:09
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How can I redirect HTTP requests made from an iPad?
...oding: gzip, deflate
Connection: keep-alive
Weblock is also good to selectively redirect some URL's with regular expressions.
You could redirect queries to certain endpoint only, while all other queries go to the IP returned from the DNS. This actually allows for even more fitting configurati...
Python: How to get stdout after running os.system? [duplicate]
...n the Windows solution. Using IDLE with Python 2.7.5, When I run this code from file Expts.py:
import subprocess
r = subprocess.check_output('cmd.exe dir',shell=False)
print r
...in the Python Shell, I ONLY get the output corresponding to "cmd.exe"; the "dir" part is ignored. HOWEVER, when I add...
How to check SQL Server version
... Connect to the instance of SQL Server, and then run the following query:
Select @@version
An example of the output of this query is as follows:
Microsoft SQL Server 2008 (SP1) - 10.0.2531.0 (X64) Mar 29 2009
10:11:52 Copyright (c) 1988-2008 Microsoft Corporation Express
Edition (64-bit) ...
How to rename a file using Python
...tension'
So, you can take your path and create a Path object out of it:
from pathlib import Path
p = Path(some_path)
Just to provide some information around this object we have now, we can extract things out of it. For example, if for whatever reason we want to rename the file by modifying the ...
How to fix “Attempted relative import in non-package” even with __init__.py
...etail, given the popularity of this question and answer. Noting stuff like from what directory to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable s...
Check to see if python script is running
... can write a simple shell script to check it for you using the return code from ps.
ps up `cat /tmp/mydaemon.pid ` >/dev/null && echo "Running" || echo "Not running"
For extra credit, you can use the atexit module to ensure that your program cleans up its pidfile under any circumstance...
Build the full path filename in Python
I need to pass a file path name to a module. How do I build the file path from a directory name, base filename, and a file format string?
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