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Most Pythonic way to provide global configuration variables in config.py? [closed]
...an also pass in additional defaults from your code. It also maps attribute and mapping style syntax to the same configuration object.
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When and how should I use a ThreadLocal variable?
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One possible (and common) use is when you have some object that is not thread-safe, but you want to avoid synchronizing access to that object (I'm looking at you, SimpleDateFormat). Instead, give each thread its own instance of the object...
Non-static variable cannot be referenced from a static context
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You must understand the difference between a class and an instance of that class. If you see a car on the street, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with t...
Android Studio says “cannot resolve symbol” but project compiles
I'm importing twitter4j in AndroidStudio, using the following in my build.gradle:
27 Answers
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Debug.Assert vs Exception Throwing
I've read plenty of articles (and a couple of other similar questions that were posted on StackOverflow) about how and when to use assertions, and I understood them well. But still, I don't understand what kind of motivation should drive me to use Debug.Assert instead of throwing a plain excep...
What is the difference between Forking and Cloning on GitHub?
I'd like to know the differences between doing a Fork of a project and doing a clone of it.
9 Answers
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MySQL “Group By” and “Order By”
I want to be able to select a bunch of rows from a table of e-mails and group them by the from sender. My query looks like this:
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NULL values inside NOT IN clause
...t I thought were identical queries one using a not in where constraint and the other a left join . The table in the not in constraint had one null value (bad data) which caused that query to return a count of 0 records. I sort of understand why but I could use some help fully grasping the con...
How to check if an object is a list or tuple (but not string)?
...es I stumbled upon bugs where a function passes a str object by mistake, and the target function does for x in lst assuming that lst is actually a list or tuple .
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Android. WebView and loadData
... "text/html; charset=UTF-8", null);
This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML.
Tested on 2.3 and 4.0.3.
In fact, I have no idea about what other values besides "base64" does the last parameter take. Some Google examples put null in ...