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OSError: [Errno 2] No such file or directory while using python subprocess in Django
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Use shell=True if you're passing a string to subprocess.call.
From docs:
If passing a single string, either shell must be True or
else the string must simply name the program to be executed without
specifying any arguments.
subprocess.call(crop, shell=True)
or:
import shlex...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...an it was in 2013, when this question was asked. Avoid drawing conclusions from out-of-date information.
PyPy, as others have been quick to mention, has tenuous support for C extensions. It has support, but typically at slower-than-Python speeds and it's iffy at best. Hence a lot of modules sim...
Any reason to clean up unused imports in Java, other than reducing clutter?
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One would be that if you remove the class referenced by the import from the classpath, you won't get a silly compiler error that served no purpose. And you won't get false positives when you perform a "where used" search.
Another (but this would be very specific in nature) would be if the u...
html (+css): denoting a preferred place for a line break
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There's a very neat RWD-solution from Dan Mall that I prefer. I'm going to add it here because some other questions regarding responsive line breaks are marked as duplicates of this one.
In your case you'd have:
<span>Honey Nut Cheerios, <br class=...
What does “program to interfaces, not implementations” mean?
...r of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum Language
{
English, German, Spanish
}
public class SpeakerFactory
{
public static ISpeaker CreateSpeaker(Language language)
{
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How to replace all dots in a string using JavaScript
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@Jasper from my understanding, it's actually faster in most browsers, although I haven't actually benchmarked it myself.
– andrew
Jun 26 '12 at 21:58
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onConfigurationChanged not getting called
...your activity, even when running on an Android 3.2 or
higher device).
(From http://developer.android.com/guide/topics/resources/runtime-changes.html)
TL;DR: add "|screenSize" to configChanges when targeting API level 13+
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Flatten list of lists [duplicate]
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Using itertools.chain.from_iterable is much simpler.
– Platinum Azure
Jun 29 '12 at 15:41
5
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How to run code when a class is subclassed? [duplicate]
...e. Although there doesn't seem to be any harm in making SuperClass inherit from object... it's definitely necessary for Watcher to inherit from type, not object.
– ArtOfWarfare
Sep 19 '15 at 14:36
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Java Set retain order?
...ion in Java. Your expectation of it keeping insertion order probably comes from lists but sets are not lists.
– Konrad Höffner
Aug 9 '19 at 10:53
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