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How can I time a code segment for testing performance with Pythons timeit?
...'''
def time_func(func, *args): #*args can take 0 or more
import time
start_time = time.time()
func(*args)
end_time = time.time()
print("it took this long to run: {}".format(end_time-start_time))
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Sending HTML email using Python
...SMTP server.
mail = smtplib.SMTP('smtp.gmail.com', 587)
mail.ehlo()
mail.starttls()
mail.login('userName', 'password')
mail.sendmail(me, you, msg.as_string())
mail.quit()
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How to obtain the number of CPUs/cores in Linux from the command line?
...
grep -c ^processor /proc/cpuinfo
will count the number of lines starting with "processor" in /proc/cpuinfo
For systems with hyper-threading, you can use
grep ^cpu\\scores /proc/cpuinfo | uniq | awk '{print $4}'
which should return (for example) 8 (whereas the command above would ret...
What is a mixin, and why are they useful?
...guages also tend to allow partial inclusion of the mixin class (things are starting to sound a bit like aspects now).
– Trevor
May 9 '13 at 20:09
9
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What does the `forall` keyword in Haskell/GHC do?
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Let's start with a code example:
foob :: forall a b. (b -> b) -> b -> (a -> b) -> Maybe a -> b
foob postProcess onNothin onJust mval =
postProcess val
where
val :: b
val = maybe onNothin o...
Removing the remembered login and password list in SQL Server Management Studio
...ple nested collections to find the connection to be removed.
// We start here with the server types
var serverTypes = settings.SSMS.ConnectionOptions.ServerTypes;
foreach (var serverType in serverTypes)
{
foreach (var server in serverType.Value.Servers)
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Current time in microseconds in java
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You can use System.nanoTime():
long start = System.nanoTime();
// do stuff
long end = System.nanoTime();
long microseconds = (end - start) / 1000;
to get time in nanoseconds but it is a strictly relative measure. It has no absolute meaning. It is only useful ...
How do I animate constraint changes?
...ts you might want to call self.view.layoutIfNeeded() to make sure that the starting point for the animation is from the state with old constraints applied (in case there were some other constraints changes that should not be included in animation):
otherConstraint.constant = 30
// this will make su...
Extension method and dynamic object
...ng change; calls currently throwing RunTimeBinderExceptions would suddenly start working upon recompiling source. Also, would there be any security risks associated with implementing such a feature?
– Ani
Mar 15 '11 at 23:45
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An error occurred while validating. HRESULT = '8000000A'
... build server. Build process always worked before and hadn't changed, but started failing consistently. Added this to the build script just before the call to devenv.exe and it worked for me in VS 2013. Thanks a ton.
– Jim
Jan 12 '18 at 0:18
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