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Proper way to declare custom exceptions in modern Python?

...tionError(Exception): def __init__(self, message, errors): # Call the base class constructor with the parameters it needs super(ValidationError, self).__init__(message) # Now for your custom code... self.errors = errors That way you could pass dict of error me...
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Python string class like StringBuilder in C#?

... There is no one-to-one correlation. For a really good article please see Efficient String Concatenation in Python: Building long strings in the Python progamming language can sometimes result in very slow running code. In this article I investigate the comp...
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Run certain code every n seconds [duplicate]

... This seems not to resolve the question at all... it does not repeat every second. – Yan King Yin Jul 5 '13 at 15:28 9 ...
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After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31

Oracle released Java JDK 7 on April 26 for Mac OS X. I followed the install instructions and when I do java -version in a terminal window I get: ...
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python NameError: global name '__file__' is not defined

... I had the same problem with PyInstaller and Py2exe so I came across the resolution on the FAQ from cx-freeze. When using your script from the console or as an application, the functions hereunder will deliver you the "execution path", not the "actual file pa...
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How to append contents of multiple files into one file

... should be >> right ? and also why is there a newline before all the text in my 0.txt file ? – Steam Aug 2 '13 at 0:00 2 ...
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Detect network connection type on Android

...twork is connected and fast enough to meet your demands you have to handle all the network types returned by getSubType(). It took me an hour or two to research and write this class to do just exactly that, and I thought I would share it with others that might find it useful. Here is a Gist of the...
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Debugging Package Manager Console Update-Database Seed Method

... Here is similar question with a solution that works really well. It does NOT require Thread.Sleep. Just Launches the debugger using this code. Clipped from the answer if (!System.Diagnostics.Debugger.IsAttached) System.Diagnostics.Debugger.Launch(); ...
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Convert decimal to binary in python [duplicate]

... all numbers are stored in binary. if you want a textual representation of a given number in binary, use bin(i) >>> bin(10) '0b1010' >>> 0b1010 10 ...
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Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit

... All error codes are on "CFNetwork Errors Codes References" on the documentation (link) A small extraction for CFURL and CFURLConnection Errors: kCFURLErrorUnknown = -998, kCFURLErrorCancelled = -999, kCFURLErrorBadU...