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How to modify list entries during for loop?
...> ['a', 'c '] # WRONG!
(The result is wrong because it didn't delete all the items it should have.)
Update
Since this is a fairly popular answer, here's how to effectively delete entries "in-place" (even though that's not exactly the question):
b = ['a',' b', 'c ', ' d ']
b[:] = [entry fo...
UUID max character length
...rom the canonical/string representation, or not have a UUID object type at all; the UUID might be stored in string form in a file, making comparison with the binary form cumbersome, etc.
– TaylanUB
Jun 12 '18 at 7:50
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How do I test for an empty string in a Bash case statement?
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I use a simple fall through. no parameters passed ($1="") will be caught by the second case statement, yet the following * will catch any unknown parameter. Flipping the "") and *) will not work as *) will catch everything every time in that...
Encode URL in JavaScript?
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according to @CMS encodeURI is not really safe for URL encoding.
– Ifnot
Mar 1 '13 at 16:35
13
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MySQL Query - Records between Today and Last 30 Days
I want to return all records that were added to the database within the last 30 days. I need to convert the date to mm/dd/yy because of display purposes.
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Serializing to JSON in jQuery [duplicate]
...letely specified.
I tend to trust what he says on JavaScript matters :)
All modern browsers (and many older ones which aren't ancient) support the JSON object natively. The current version of Crockford's JSON library will only define JSON.stringify and JSON.parse if they're not already defined, l...
What is a .pid file and what does it contain?
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Pidfile contains pid of a process. It is a convention allowing long running processes to be more self-aware. Server process can inspect it to stop itself, or have heuristic that its other instance is already running. Pidfiles can also be used to conventiently kill risk manually,...
How do I read CSV data into a record array in NumPy?
... 2. , 3. ],
[ 4. , 5.5, 6. ]])
This gives a pandas DataFrame - allowing many useful data manipulation functions which are not directly available with numpy record arrays.
DataFrame is a 2-dimensional labeled data structure with columns of
potentially different types. You can think ...
random.seed(): What does it do?
...andom number generators work by performing some operation on a value. Generally this value is the previous number generated by the generator. However, the first time you use the generator, there is no previous value.
Seeding a pseudo-random number generator gives it its first "previous" value. Each...
Execute Python script via crontab
...p/crontab.JTQ0My/crontab":22: bad minute errors in crontab file, can't install. Do you want to retry the same edit? (y/n)" if I type "y", I've returned to file edit. And if I type "n" the file is not saved. I add this line at last line of the file: "/1 * * * * /usr/bin/python script.py"
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