大约有 19,000 项符合查询结果（耗时：0.0414秒） [XML]
How to merge lists into a list of tuples?
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Django FileField with upload_to determined at runtime
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Does this work with ModelForm? I can see that instance has all the attributes of the class model, but there are no values (just a str of the field name). In the template, user is hidden. I may have to submit a question, I have been googling this f...
Why exactly is eval evil?
...oblems are. I see now from the answers here what they are (security and performance problems).
– Jay
Apr 3 '10 at 14:21
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HTML minification? [closed]
...anagement, image optimization, etc will make a bigger difference to the performance of your site overall. Those tools will show you what the biggest problems are -- if you've dealt with them all and still find that HTML minification makes a significant difference, go for it.
(If you're sure you wa...
What is the purpose of “!” and “?” at the end of method names?
...or readability, but they do have common meanings:
Methods ending in ! perform some permanent or potentially dangerous change; for example:
Enumerable#sort returns a sorted version of the object while Enumerable#sort! sorts it in place.
In Rails, ActiveRecord::Base#save returns false if saving fai...
How are VST Plugins made?
...he wiki, explains what they are and gives links to the sdk.
Here is some information regarding the deve
How to compile a plugin - For making VST plugins in C++Builder, first you need the VST sdk by Steinberg. It's available from the Yvan Grabit's site (the link is at the top of the page).
The next...
How to do stateless (session-less) & cookie-less authentication?
... sending the token via a POST request every time (this would mean a hidden form field on the user's browser.) The latter approach of using a POST request should use CSRF defenses, just in case, though I suspect using the token itself might be some sort of a CSRF defense.
Last, but not the least, ma...
Does pandas iterrows have performance issues?
I have noticed very poor performance when using iterrows from pandas.
6 Answers
6
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Why doesn't Java Map extend Collection?
... feel... thus... makes little sense". I don't feel that "feel" and "sense" form a conclusion ;o)
– Peter Wippermann
Aug 29 '12 at 9:32
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Find where python is installed (if it isn't default dir)
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sys has some useful stuff:
$ python
Python 2.6.6 (r266:84297, Aug 24 2010, 18:13:38) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.executable
'c:\\Python26\\python.exe'
>>> sys.exec_p...