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Why do we usually use || over |? What is the difference?
... 4 is 1/true).
If the thing you're getting from a function is actually an error code and you're testing for non-0-ness, this can matter quite a lot.
This isn't as much of an issue in Java where you have to explicitly typecast to boolean or compare with 0 or the like, but in other languages with si...
Naming returned columns in Pandas aggregate function? [duplicate]
...l() function on the multi-level column to form new labels:
df.columns = ["_".join(x) for x in df.columns.ravel()]
For example:
import pandas as pd
import pandas.rpy.common as com
import numpy as np
data = com.load_data('Loblolly')
print(data.head())
# height age Seed
# 1 4.51 3 3...
Installing PDO driver on MySQL Linux server
...-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
share
|
im...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
...ng API 19 and used a SVG file for notification icon and was giving me this error, until I switched it to a small png icon
– WHOATEMYNOODLES
Aug 23 '19 at 21:00
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...
Thread Safety in Python's dictionary
...mic operations, there are corner cases where they aren’t atomic (e.g. if __hash__ or __eq__ are implemented as Python methods) and their atomicity should not be relied upon. Neither should you rely on atomic variable assignment (since this in turn depends on dictionaries).
Use the Queue module's Q...
MySQL query String contains
...
Quite simple actually:
mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");
The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you'll nee...
How do I keep the screen on in my App? [duplicate]
...Don't Use Wake Lock.
It requires permission and other stuff and may cause error if you forget to set it in right time.
The easiest way is to use the below code when you want to keep your screen on..
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
One addition to the answ...
Filtering by Multiple Specific Model Properties in AngularJS (in OR relationship)
...ots of nested stuff, mapping everything can be confusing / easy to make an error. +1 though for a great solution for basic needs...wish this wasn't so complicated to filter for only a few properties instead of all! :/ ...maybe in the future Angular could add some built in functionality for filters o...
VIM Disable Automatic Newline At End Of File
... for use in a gitattributes file.
To install this filter, save it as noeol_filter somewhere in your $PATH, make it executable, and run the following commands:
git config --global filter.noeol.clean noeol_filter
git config --global filter.noeol.smudge cat
To start using the filter only for yourse...
How do I check if I'm running on Windows in Python? [duplicate]
...lue cannot be determined.
If that isn't working, maybe try platform.win32_ver and if it doesn't raise an exception, you're on Windows; but I don't know if that's forward compatible to 64-bit, since it has 32 in the name.
win32_ver(release='', version='', csd='', ptype='')
Get additional ...