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How to get awaitable Thread.Sleep?
I'm writing a network-bound application based on await/sleep paradigm.
1 Answer
1
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MySQL vs PostgreSQL for Web Applications [closed]
...n change rapidly from version to version, so before you go choosing a DBMS based on the advice below, do some research to see if it's still accurate.
Check for newer answers below.
Better?
MySQL is much more commonly provided by web hosts.
PostgreSQL is a much more mature product.
There's this...
Python function attributes - uses and abuses [closed]
...ciated data together:
#!/usr/bin/env python
SW_DELTA = 0
SW_MARK = 1
SW_BASE = 2
def stopwatch():
import time
def _sw( action = SW_DELTA ):
if action == SW_DELTA:
return time.time() - _sw._time
elif action == SW_MARK:
_sw._time = time.time()
retur...
Java generics - why is “extends T” allowed but not “implements T”?
...ve a constructor and methods that can accept any class that both axtends a base class and exhibits an interface not just interfaces that extend an interface. Then have the instantiation of the Genric test for the presense of interfaces AND have the actual class specified as a type parameter. Ideal...
Window.open and pass parameters by post method
...
No jQuery and Pure JavaScript based implementation. Thanks.
– Pawan Pillai
Sep 1 '14 at 10:19
2
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How can I join elements of an array in Bash?
...' '-e' '-E' '-n' #-e-n-E-n-n
join_by , #
join_by , a #a
The code above is based on the ideas by @gniourf_gniourf, @AdamKatz, and @MattCowell.
Alternatively, a simpler function that supports only single character delimiter, would be:
function join_by { local IFS="$1"; shift; echo "$*"; }
For exampl...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
... tables, with the result being a new, temporary table. Joins are performed based on something called a predicate, which specifies the condition to use in order to perform a join. The difference between an inner join and an outer join is that an inner join will return only the rows that actually mat...
Programmatically saving image to Django ImageField
...L to an image
# self.photo is the ImageField
self.photo.save(
os.path.basename(self.url),
File(open(result[0], 'rb'))
)
self.save()
That's a bit confusing because it's pulled out of my model and a bit out of context, but the important parts are:
The image pulled from the web is not...
How can I determine the URL that a local Git repository was originally cloned from?
... This is not quite the right answer because of the config option url.<base>.insteadOf. See my answer - git has a command for this purpose.
– Carl Suster
Jun 2 '13 at 5:17
2...
sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
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