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How do I output coloured text to a Linux terminal?
..., ASCII 27. It is followed by [, then zero or more numbers separated by ;, and finally the letter m. The numbers describe the colour and format to switch to from that point onwards.
The codes for foreground and background colours are:
foreground background
black 30 40
red ...
Iterate over model instance field names and values in template
...ts have changed slightly. A migration guide has been provided to assist in converting your code to use the new, official API.
In the below example, we will utilize the formalized method for retrieving all field instances of a model via Client._meta.get_fields():
fields = [(f.verbose_name, f.name) f...
How do I rename a column in a SQLite database table?
...has been asked on stackoverflow previously, but it was for SQL in general, and the case of SQLite was not mentioned.
15 Ans...
How to get the first column of a pandas DataFrame as a Series?
...
>>> import pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, 5, 6, 7]})
>>> df
x y
0 1 4
1 2 5
2 3 6
3 4 7
>>> s = df.ix[:,0]
>>> type(s)
<class 'pandas.core.series.Serie...
Create a dictionary on a list with grouping
...ion that you want to search by. The trick is to create a grouping and then convert it to a dictionary, as follows:
Dim qry = (From acs In ActualSales _
Group By acs.ProductID Into Group _
Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _
)...
How do you dynamically add elements to a ListView on Android?
...anyone explain or suggest a tutorial to dynamically create a ListView in android?
7 Answers
...
JSON left out Infinity and NaN; JSON status in ECMAScript?
...safety/security, all a decent JSON parser would have to do when it goes to convert NaN is to yield the value 0/0 (rather than evaluating the symbol NaN) which will return the "real" NaN regardless of what the symbol NaN is redefined as.
– Jason S
Sep 17 '09 at ...
SOAP server and client application VCL+indy demo for Delphi XE?
... from the WebServices folder, now updated for Delphi XE and XE2, including converting the old WAD servers into new INDY VCL servers. You'd think that was impressive, except it's not. It's really easy. Just use the wizard to create a new project, and then add the web service interface and implementa...
How to know if other threads have finished?
...ted, or
Unorthodox, for each Thread in question, call setUncaughtExceptionHandler to call a method in your object, and program each Thread to throw an uncaught Exception when it completes, or
Use locks or synchronizers or mechanisms from java.util.concurrent, or
More orthodox, create a listener in y...
How to build a query string for a URL in C#?
... When I've done similar things I've usually been interested in serialising AND deserialising so my suggestion is to build a NameValueCollection up and then pass to:
using System.Linq;
using System.Web;
using System.Collections.Specialized;
private string ToQueryString(NameValueCollection nvc)
{
...