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How do I write data into CSV format as string (not file)?
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since i use this quite a lot to stream results asynchronously from sanic back to the user as csv data i wrote the following snippet for Python 3.
The snippet lets you reuse the same StringIo buffer over and over again.
import csv
from io import StringIO
class ArgsToCsv:
def __i...
Set 4 Space Indent in Emacs in Text Mode
I've been unsuccessful in getting Emacs to switch from 8 space tabs to 4 space tabs when pressing the TAB in buffers with the major mode text-mode . I've added the following to my .emacs :
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General guidelines to avoid memory leaks in C++ [closed]
...the most basic pattern to know is RAII.
Learn to use smart pointers, both from boost, TR1 or even the lowly (but often efficient enough) auto_ptr (but you must know its limitations).
RAII is the basis of both exception safety and resource disposal in C++, and no other pattern (sandwich, etc.) will...
android - How to set the Rating bar is non clickable and touchable in HTC mobile
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You could also set the RatingBar as indicator from the xml with the following:
android:isIndicator="true"
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What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...n does NOT reset the
transaction isolation level to the
server default from the previous
connection's setting.
UPDATE: Starting with SQL 2014, for client drivers with TDS version 7.3 or higher, the transaction isolation levels will be reset back to the default.
ref: SQL Server: Isolation l...
What is a plain English explanation of “Big O” notation?
...hat we could express the number of operations as: n2 + 2n. But as you saw from our example with two numbers of a million digits apiece, the second term (2n) becomes insignificant (accounting for 0.0002% of the total operations by that stage).
One can notice that we've assumed the worst case scenari...
Why is the order in dictionaries and sets arbitrary?
...s,
How CPython's hash set is stored in memory and
How numbers get hashed
From the top:
A hash set is a method of storing random data with really fast lookup times.
It has a backing array:
# A C array; items may be NULL,
# a pointer to an object, or a
# special dummy object
_ _ 4 _ _ 2 _ _ 6
W...
adding noise to a signal in python
...rmal(0,1,100)
# 0 is the mean of the normal distribution you are choosing from
# 1 is the standard deviation of the normal distribution
# 100 is the number of elements you get in array noise
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“You don't have a SNAPSHOT project in the reactor projects list.” when using Jenkins Maven release p
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I added how I'm getting my version -- I'm inheriting it from a parent pom. Sadly if I change the version to include "-SNAPSHOT," I get the error, "Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.0:prepare (default-cli) on project myproject: Can't release pr...
Sending and Parsing JSON Objects in Android [closed]
...ssages in the form of JSON objects to a server and parse the JSON response from the server.
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