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Python: split a list based on a condition?

What's the best way, both aesthetically and from a performance perspective, to split a list of items into multiple lists based on a conditional? The equivalent of: ...
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node and Error: EMFILE, too many open files

For some days I have searched for a working solution to an error 17 Answers 17 ...
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How to check permissions of a specific directory?

I know that using ls -l "directory/directory/filename" tells me the permissions of a file. How do I do the same on a directory? ...
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Sublime Text 2: Trim trailing white space on demand

I know that Sublime Text 2 can delete the trailing white space on files upon saving. 5 Answers ...
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How do I create a crontab through a script

...need to add a cron job thru a script I run to set up a server. I am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically. ...
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List of ANSI color escape sequences

On most terminals it is possible to colorize output using the \033 ANSI escape sequence. 5 Answers ...
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Argparse: Way to include default values in '--help'?

...o add information about the default value to. The exact output for your scan-time option then becomes: --scan-time [SCAN_TIME] Wait SCAN-TIME seconds between status checks. (default: 5) ...
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L

Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly. ...
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Plot two graphs in same plot in R

I would like to plot y1 and y2 in the same plot. 16 Answers 16 ...
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Count occurrences of a char in a string using Bash

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