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What is the most efficient way to loop through dataframes with pandas? [duplicate]
...
The newest versions of pandas now include a built-in function for iterating over rows.
for index, row in df.iterrows():
# do some logic here
Or, if you want it faster use itertuples()
But, unutbu's suggestion to use numpy functions to avoid iteratin...
How do iOS Push Notifications work?
...s from APNs, see Communicating with APNs.
Send the HTTP/2 request to APNs, including cryptographic credentials in the form of a token or a certificate, over a persistent, secure channel.
Establishing this secure channel is described in Security Architecture.
Using Multiple Providers
Figure 1-2 depi...
How does the SQL injection from the “Bobby Tables” XKCD comic work?
...e original statement and then a second statement follows. Most frameworks, including languages like PHP, have default security settings by now that don't allow multiple statements in one SQL string. In PHP, for example, you can only run multiple statements in one SQL string by using the mysqli_multi...
Failed to load the JNI shared Library (JDK)
...
Make sure your eclipse.ini file includes the following lines.
-vm
C:\path\to\64bit\java\bin\javaw.exe
My eclipse.ini for example:
-startup
plugins/org.eclipse.equinox.launcher_1.1.1.R36x_v20101122_1400.jar
--launcher.library
plugins/org.eclipse.equinox....
What browsers support HTML5 WebSocket API?
...n desktop and mobile browsers.
See the test reports from the WS testsuite included in Autobahn WebSockets for feature/protocol conformance tests.
Server side
It depends on which language you use.
In Java/Java EE:
Jetty 7.0 supports it (very easy to use) V 7.5 supports RFC6455 - Jetty 9.1 sup...
What does “Mass Assignment” mean in Laravel?
... to the model and without protection they can definitely modify all fields including the ID. That’s not good.
Let's say you have 'students' table, with fields "student_type, first_name, last_name”. You may want to mass assign "first_name, last_name" but you want to protect student_type from bei...
How to run a PowerShell script without displaying a window?
... your script by double-clicking in explorer, or via a Start menu shortcut (including, of course the Startup submenu). And I like that it's part of the code of the script itself, not something external.
Put this at the front of your script:
$t = '[DllImport("user32.dll")] public static extern bool ...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
... to write... For instance here's one of my model's code :
class Setting
include MongoMapper::Document
key :news_search, String, :required => true
key :is_availaible_for_iphone, :required => true, :default => false
belongs_to :movie
end
Adding a key is just adding a line of code...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
...aking a lookup table by hand and making the program to do it would already include a different solution (which would be simpler alone than the one including both it and the table).
– Arkku
Apr 8 '10 at 20:18
...
How do you display a Toast from a background thread on Android?
...
One approach that works from pretty much anywhere, including from places where you don't have an Activity or View, is to grab a Handler to the main thread and show the toast:
public void toast(final Context context, final String text) {
Handler handler = new Handler(Looper....