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Assigning a variable NaN in python without numpy
...l comparisons returning false for IEEE754 NaN values? for more details and information.
Instead, use math.isnan(...) if you need to determine if a value is NaN or not.
Furthermore, the exact semantics of the == operation on NaN value may cause subtle issues when trying to store NaN inside contain...
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
...
context is just information about an environment right?
– committedandroider
Nov 20 '14 at 4:03
...
Difference between GIT and CVS
...VS require setting up CVSROOT, a central place for storing version control info for different projects (modules). The consequence of that design for user is that importing existing sources into version control is as simple as "git init && git add . && git commit" in Git, while it is ...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...urope/Brussels]', freq='H')
using tz_localize(None) removes the timezone information resulting in naive local time:
In [6]: t.tz_localize(None)
Out[6]: DatetimeIndex(['2013-05-18 12:00:00', '2013-05-18 13:00:00'],
dtype='datetime64[ns]', freq='H')
Further, you can also us...
Difference between 'python setup.py install' and 'pip install'
...ily install wheels, which is the new standard of Python distribution. More info about wheels.
pip offers additional benefits that integrate well with using virtualenv, which is a program that lets you run multiple projects that require conflicting libraries and Python versions on your computer. More...
.rar, .zip files MIME Type
...lient and can be set to any random value. Instead you can use the php file info functions to detect the file mime-type on the server.
For download:
If you want to download a zip file and nothing else you should only set one single Accept header value. Any additional values set will be used as a...
Why is there no xrange function in Python3?
... bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> import timeit
>>> timeit.timeit("[x for x in xrange(1000000) if x%4]",number=100)
18.631936646865853
Python 3, with range is a tiny bit faster:
Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2...
How to format numbers as currency string?
...f you're using Node, you might need to install full-icu, see here for more info
Have a look at CanIUse for more info
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How to pass a class type as a function parameter
...tocol like the following one:
protocol Initable {
init()
}
class CityInfo : NSObject, Initable {
var cityName: String?
var regionCode: String?
var regionName: String?
// Nothing to change here, CityInfo already implements init()
}
Then you only have to change the generic con...
How to disable / enable dialog negative positive buttons?
...g.Builder(MainActivity.this);
builder.setIcon(android.R.drawable.ic_dialog_info);
builder.setTitle("Alert dialog title");
builder.setMessage("This is the example code snippet to disable button if edittext attached to dialog is empty.");
builder.setPositiveButton("PositiveButton",
new DialogI...