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Getting a list of all subdirectories in the current directory
Is there a way to return a list of all the subdirectories in the current directory in Python?
27 Answers
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How to replace spaces in file names using a bash script
...whole question is about micro-optimizing more or less. Isn't it fun, after all? ;-)
– Michael Krelin - hacker
Apr 26 '10 at 18:33
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performSelector may cause a leak because its selector is unknown
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The "Complex Example" gives an error Cannot initialize a variable of type 'CGRect (*)(__strong id, SEL, CGRect, UIView *__strong)' with an rvalue of type 'void *' when using latest Xcode. (5.1.1) Still, I learned a lot!
– Stan James
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Abstract classes in Swift Language
... importantly, notice that there is no dynamic dispatch. When logSalary is called on the instance that is stored as a SoftwareEngineer it calls the overridden version of the method. When logSalary is called on the instance after it has been cast to an Employee, it calls the original implementation (i...
Convert line-endings for whole directory tree (Git)
...should be faster. You don't need the -name *.* either, unless you specifically want only files with a period somewhere in the name. That's a windows glob, not a *nix one.
– Useless
Aug 15 '11 at 17:31
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How can I get useful error messages in PHP?
...often I will try and run a PHP script and just get a blank screen back. No error message; just an empty screen. The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely.
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How do I print the type of a variable in Rust?
...e of a variable and are willing to do it at compile time, you can cause an error and get the compiler to pick it up.
For example, set the variable to a type which doesn't work:
let mut my_number: () = 32.90;
// let () = x; would work too
error[E0308]: mismatched types
--> src/main.rs:2:29
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How to model type-safe enum types?
...y, Long] and add a value say Mon to it the compiler throws an invalid type error. Expected Weekday.Weekday found Value? Why does this happen?
– Sohaib
Jun 14 '15 at 18:30
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...06 to any firewall you may be running (although this will give a different error message)
hope this helps someone...
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What are some (concrete) use-cases for metaclasses?
...Field attributes, they are injected with their names (for more informative error messages, for example), and grouped into a _fields dictionary (for easy iteration, without having to look through all the class attributes and all its base classes' attributes every time):
>>> class A(Model):
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