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Sample random rows in dataframe
... sample_frac) have been superseded by slice_sample, though they remain for now.
– Matt_B
Sep 4 at 2:50
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PHP/MySQL insert row then get 'id'
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As to PHP's website, mysql_insert_id is now deprecated and we must use PDO. To do this with PDO, proceed as following:
$db = new PDO('mysql:dbname=database;host=localhost', 'user', 'pass');
$statement = $db->prepare('INSERT INTO people(name, city) VALUES(:name,...
Bash: infinite sleep (infinite blocking)
...initrc . In my .xinitrc I start my window manager using /usr/bin/mywm . Now, if I kill my WM (in order to f.e. test some other WM), X will terminate too because the .xinitrc script reached EOF.
So I added this at the end of my .xinitrc :
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Measuring elapsed time with the Time module
...seconds consider the following:
import datetime
start = datetime.datetime.now()
# some code
end = datetime.datetime.now()
elapsed = end - start
print(elapsed)
# or
print(elapsed.seconds,":",elapsed.microseconds)
strftime documentation
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Virtual Serial Port for Linux
...en another terminal and write (Terminal 2):
echo "Test" > /dev/pts/3
Now back to Terminal 1 and you'll see the string "Test".
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Mocking python function based on input arguments
...r easier, could you rename the side_effect function to something else? (i know, i know, it is pretty simple, but improves readability the fact that function name and param name are different :)
– Juan Antonio Gomez Moriano
Apr 23 '13 at 6:21
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PostgreSQL: Drop PostgreSQL database through command line [closed]
...elect * from pg_stat_activity;" say? Are the other users besides yourself now connected? If so, you might have to edit your pg_hba.conf file to reject connections from other users, or shut down whatever app is accessing the pg database to be able to drop it. I have this problem on occasion in pro...
Adding devices to team provisioning profile
...lt. So add your device through the portal and hit refresh - your device is now auto-magically attached to your provisioning profile.
– thattyson
Aug 5 '15 at 20:28
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Does C# have extension properties?
...ent it is still not supported out of the box by Roslyn compiler ...
Until now, the extension properties were not seen as valuable enough to be included in the previous versions of C# standard. C# 7 and C# 8.0 have seen this as proposal champion but it wasn't released yet, most of all because even i...
Compiling Java 7 code via Maven
...ead of CurrentJDK). Not an elegant fix but I just hardcoded the export and now it works (PS: maven on OSX is at /usr/share/maven/bin/mvn)
– Raekye
Aug 4 '13 at 6:55
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