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Daemon Threads Explanation
...nce if you use them. Daemon threads can still execute after the Python runtime starts tearing down things in the main thread, causing some pretty bizarre exceptions.
More info here:
https://joeshaw.org/python-daemon-threads-considered-harmful/
https://mail.python.org/pipermail/python-list/2005-F...
Using numpy to build an array of all combinations of two arrays
...grid() provides a much faster implementation:
@pv's solution
In [113]:
%timeit cartesian(([1, 2, 3], [4, 5], [6, 7]))
10000 loops, best of 3: 135 µs per loop
In [114]:
cartesian(([1, 2, 3], [4, 5], [6, 7]))
Out[114]:
array([[1, 4, 6],
[1, 4, 7],
[1, 5, 6],
[1, 5, 7],
...
Combining Multiple Commits Into One Prior To Push
...ion, no, there's nothing wrong with pushing multiple commits at once. Many times, you may want to break your work down into a few small, logical commits, but only push them up once you feel like the whole series is ready. Or you might be making several commits locally while disconnected, and you pus...
Unable to show a Git tree in terminal
....com is blocked here at work :( I will see your picture in about one hour, time to get home.
– VonC
Jun 30 '09 at 16:00
...
data.table vs dplyr: can one do something well the other can't or does poorly?
...oins.
Also benchmark memory footprint for each operation in addition to runtime.
2. Memory usage
Operations involving filter() or slice() in dplyr can be memory inefficient (on both data.frames and data.tables). See this post.
Note that Hadley's comment talks about speed (that dplyr is plen...
How can I maximize a split window?
...ork - also I think question is about maximizing window to work for a short time in that state and then later on return to previous state -- by closing all windows then you will have to use your session file or manually open all other windows to get back
– serup
...
How do I use prepared statements in SQlite in Android?
...
I use prepared statements in Android all the time, it's quite simple :
SQLiteDatabase db = dbHelper.getWritableDatabase();
SQLiteStatement stmt = db.compileStatement("INSERT INTO Country (code) VALUES (?)");
stmt.bindString(1, "US");
stmt.executeInsert();
...
How to find unused/dead code in java projects [closed]
...k, which is a dynamic language and thus allows for code modification at runtime. We instrument all methods with a logging call and uninstall the logging code after a method has been logged for the first time, thus after some time no more performance penalties occur. Maybe a similar thing can be done...
Storing Images in DB - Yea or Nay?
...
In my experience, sometimes the simplest solution is to name the images according to the primary key. So it's easy to find the image that belongs to a particular record, and vice versa. But at the same time you're not storing anything about the im...
Random Number Between 2 Double Numbers
...lizing a new RNG with every call, if you call quick enough that the system time doesn't change between calls the RNG will get seeded with the exact same timestamp, and generate the same stream of random numbers.
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