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Formatting “yesterday's” date in python
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all answers are correct, but I want to mention that time delta accepts negative arguments.
>>> from datetime import date, timedelta
>>> yesterday = date.today() + timedelta(days=-1)
>>> print(y...
How to get values from IGrouping
...> implements IEnumerable<TElement>, you can use SelectMany to put all the IEnumerables back into one IEnumerable all together:
List<smth> list = new List<smth>();
IEnumerable<IGrouping<int, smth>> groups = list.GroupBy(x => x.id);
IEnumerable<smth> smths = ...
Including jars in classpath on commandline (javac or apt)
trying to run this program. I think that to setup all of the web service stuff I need to run apt. (Although using javac I am having the same issue). I think what I am getting is compile errors. (Shown at bottom).
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How can I join multiple SQL tables using the IDs?
...ID
WHERE DATE(TableC.date)=date(now())
In your example, you are not actually including TableD. All you have to do is perform another join just like you have done before.
A note: you will notice that I removed many of your parentheses, as they really are not necessary in most of the cases you ha...
Get line number while using grep
I am using grep recursive to search files for a string, and all the matched files and the lines containing that string are print on the terminal. But is it possible to get the line numbers of those lines too??
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How to import a single table in to mysql database using command line
...sql file containing data in form of insert statements for table tableName. All the insert statements will be executed and the data will be loaded.
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How to add image to canvas
...xt.drawImage(base_image, 0, 0);
}
}
I.e. draw the image in the onload callback of the image.
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python multithreading wait till all threads finished
...oin method of Thread object in the end of the script.
t1 = Thread(target=call_script, args=(scriptA + argumentsA))
t2 = Thread(target=call_script, args=(scriptA + argumentsB))
t3 = Thread(target=call_script, args=(scriptA + argumentsC))
t1.start()
t2.start()
t3.start()
t1.join()
t2.join()
t3.join...
Memory management in Qt?
... need to delete and/or destroy my objects? Is any of this handled automatically?
4 Answers
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grepping using the “|” alternative operator
...Still, I'd delete an answer that is identical to the upvoted answer. Especially if had were 40k reputation under my belt.
– Attila Csipak
Sep 4 at 13:29
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