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Writing a list to a file with Python
... For example because you want an output text file that can be easily read, edited, etc, with one item per line. Hardly a rare desire;-).
– Alex Martelli
May 23 '09 at 14:40
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What is the most efficient/elegant way to parse a flat table into a tree?
...lution is called Nested Sets, and it can be stored in the same table too. Read "Trees and Hierarchies in SQL for Smarties" by Joe Celko for a lot more information on these designs.
I usually prefer a design called Closure Table (aka "Adjacency Relation") for storing tree-structured data. It requi...
PHP mkdir: Permission denied problem
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I know this is an old thread, but it needs a better answer. You shouldn't need to set the permissions to 777, that is a security problem as it gives read and write access to the world. It may be that your apache user does not have read/write permiss...
Command to get time in milliseconds
... I feel so proud that @Peter Mortensen did one of his superb active readings on one of my posts :) thanks!!
– fedorqui 'SO stop harming'
Nov 18 '19 at 13:44
add a comme...
Total memory used by Python process?
...child) process usage.
If you care only about Linux, you can alternatively read the /proc/self/status or /proc/self/statm file as described in other answers for this question and this one too.
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Which characters make a URL invalid?
...rcent-encoded as "%25" for that octet to be used as data within a URI." I read that as saying that a "%" may only appear if it is followed by two hex digits. How do you read it?
– Leif Wickland
Jan 5 '12 at 0:00
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Infinite Recursion with Jackson JSON and Hibernate JPA issue
...properties (during serialization), or ignore processing of JSON properties read (during deserialization). If this is not what you're looking for, please keep reading below.
(Thanks to As Zammel AlaaEddine for pointing this out).
JsonManagedReference and JsonBackReference
Since Jackson 1.6 you c...
How to get the contents of a webpage in a shell variable?
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You can use wget command to download the page and read it into a variable as:
content=$(wget google.com -q -O -)
echo $content
We use the -O option of wget which allows us to specify the name of the file into which wget dumps the page contents. We specify - to get the dum...
Generating CSV file for Excel, how to have a newline inside a value
...rrectly, and row structure is not damaged, and all national characters are read properly (they were trashed when reading without UTF8 BOM). Excel have not even displayed the text-import wizard. Currently, that CSV now has EFBBBF header, uses 0A as row separator, and 0D0A as new line inside strings i...
Why aren't programs written in Assembly more often? [closed]
...I am a compiler.
I just scanned thousands of lines of code while you were reading this sentence. I browsed through millions of possibilities of optimizing a single line of yours using hundreds of different optimization techniques based on a vast amount of academic research that you would spend year...