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How to create a custom string representation for a class object?
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Implement __str__() or __repr__() in the class's metaclass.
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object):
__metaclass__ = MC
print C
Use __str__ if you mean a readable stringification, use __repr...
Expand/collapse section in UITableView in iOS
Could somebody tell me the way to perform UITableView expandable/collapsible animations in sections of UITableView as below?
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MySQL JOIN the most recent row only?
I have a table customer that stores a customer_id, email and reference. There is an additional table customer_data that stores a historical record of the changes made to the customer, i.e. when there's a change made a new row is inserted.
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Visual Studio Post Build Event - Copy to Relative Directory Location
...y the contents of the output directory to a different location under the same "base" folder. This parent folder is a relative part and can vary based on Source Control settings.
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What is a “first chance exception”?
...es it originate in a .NET program? And why is it called by that peculiar name (what 'chance' are we talking about)?
5 Answe...
How does the Brainfuck Hello World actually work?
Someone sent this to me and claimed it is a hello world in Brainfuck (and I hope so...)
6 Answers
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How do you run CMD.exe under the Local System Account?
I'm currently running Vista and I would like to manually complete the same operations as my Windows Service. Since the Windows Service is running under the Local System Account, I would like to emulate this same behavior. Basically, I would like to run CMD.EXE under the Local System Account.
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Which characters need to be escaped when using Bash?
...line byte (except when it's empty). That's why both above sed commands assume it does not. You can add a quoted newline manually.
Note that shell variables are only defined for text in the POSIX sense. Processing binary data is not defined. For the implementations that matter, binary works with the...
Unix tail equivalent command in Windows Powershell
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Use the -wait parameter with Get-Content, which displays lines as they are added to the file. This feature was present in PowerShell v1, but for some reason not documented well in v2.
Here is an example
Get-Content -Path "C:\scripts\test.txt...
How to explore web-based Google Play in another country?
... I go to play.google.com, it automatically recognizes my country and allow me to browse the apps for that country. I can change the language through the dropdown in the footer, or I can add &hl=code in the querystring...but that only changes the language...not the store content (the app lists and ra...