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Python __str__ versus __unicode__
Is there a python convention for when you should implement __str__() versus __unicode__() . I've seen classes override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it ne...
How to quit android application programmatically
I Found some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?
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how to rotate a bitmap 90 degrees
...rix.postRotate(90);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmapOrg, width, height, true);
Bitmap rotatedBitmap = Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true);
Then you can use the rotated image to set in your imageview throug...
What is the purpose and uniqueness SHTML?
...des (SSI).
(HTML is...you know what it is, and DHTML is Microsoft's name for Javascript+HTML+CSS or something).
You can use SSI to include a common header and footer in your pages, so you don't have to repeat code as much. Changing one included file updates all of your pages at once. You just put ...
Django ModelForm: What is save(commit=False) used for?
Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model?
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Does .asSet(…) exist in any API?
I'm looking for a very simple way to create a Set.
10 Answers
10
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Single quotes vs. double quotes in Python [closed]
According to the documentation, they're pretty much interchangeable. Is there a stylistic reason to use one over the other?
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Lambda function in list comprehensions
... a list. To make it equivalent to the first you need:
[(lambda x: x*x)(x) for x in range(10)]
Or better yet:
[x*x for x in range(10)]
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How to get string objects instead of Unicode from JSON?
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A solution with object_hook
import json
def json_load_byteified(file_handle):
return _byteify(
json.load(file_handle, object_hook=_byteify),
ignore_dicts=True
)
def json_loads_byteified(json_text):
return _byteify(
jso...
memory_get_peak_usage() with “real usage”
...rgument is set to true the PHP DOCS say it will get the real size of memory allocated from system. If it's false it will get the memory reported by emalloc()
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