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Get Image size WITHOUT loading image into memory
...; this function identifies the file, but the actual image data is not read from the file until you try to process the data (or call the load method).
Digging deeper, we see that .open calls _open which is a image-format specific overload. Each of the implementations to _open can be found in a new ...
Strip HTML from Text JavaScript
...ce of the HTML (for example, don't run this on anything that could've come from user input). For those scenarios, you can still let the browser do the work for you - see Saba's answer on using the now widely-available DOMParser.
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Behaviour for significant change location API when terminated/suspended?
This is the section from the CLLocationManager documentation describing the app behavior with startMonitoringSignificantLocationChanges :
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How I can I lazily read multiple JSON values from a file/stream in Python?
I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects.
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Android studio Gradle build speed up
Since the last update (Build from june 25) any changes in the Android studio Gradle is painfully slow. And it also seems to autotrack changes when you edit the file and recompile on keyup.
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How to do parallel programming in Python?
... the multiprocessing module. For this case I might use a processing pool:
from multiprocessing import Pool
pool = Pool()
result1 = pool.apply_async(solve1, [A]) # evaluate "solve1(A)" asynchronously
result2 = pool.apply_async(solve2, [B]) # evaluate "solve2(B)" asynchronously
answer1 = result...
How do you get assembler output from C/C++ source in gcc?
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While this is correct, I found the results from Cr McDonough's answer to be more useful.
– Rhys Ulerich
Nov 3 '13 at 2:13
3
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Django, creating a custom 500/404 error page
...s there anything I should be checking for that would prevent a custom page from showing up?
14 Answers
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What is the difference between substr and substring?
... first argument, which can be negative for substr (in which case it starts from the end), but not for substring. See JefferMC answer, but it has so many less votes that a lot of people might miss this important part.
– youen
Jul 26 '17 at 19:46
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How to remove newlines from beginning and end of a string?
...the best way to keep the part with text, but remove the whitespace newline from the end?
10 Answers
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