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Python: How would you save a simple settings/config file?
...onfigParser()
config.read('config.ini')
config.add_section('main')
config.set('main', 'key1', 'value1')
config.set('main', 'key2', 'value2')
config.set('main', 'key3', 'value3')
with open('config.ini', 'w') as f:
config.write(f)
The file format is very simple with sections marked out in squa...
ALTER TABLE, set null in not null column, PostgreSQL 9.1
I have a table with not null column, How to set a null value in this column as default?
4 Answers
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How do I find the duplicates in a list and create another list with them?
...
To remove duplicates use set(a). To print duplicates, something like:
a = [1,2,3,2,1,5,6,5,5,5]
import collections
print([item for item, count in collections.Counter(a).items() if count > 1])
## [1, 2, 5]
Note that Counter is not particularly...
How do I print the full value of a long string in gdb?
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set print elements 0
From the GDB manual:
set print elements number-of-elements
Set a limit on how many elements of an array GDB will print. If GDB is printing a large array, it stops printing after it has printed the n...
Changing the status bar text color in splash screen iOS 7
...erty and type UIStatusBarStyleLightContent instead.
And you don't have to set UIViewControllerBasedStatusBarAppearanceto NOin your plist, you can set the preferredStatusBarStyle you want to your view controllers.
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How to set enum to null
...ference to a place in memory where the value itself is stored). You can't set value types to null (since null is used for reference types only).
That being said you can use the built in Nullable<T> class which wraps value types such that you can set them to null, check if it HasValue and get...
How to set the title of DialogFragment?
This should be a simple task, but for some reason I can find a way to set the title of a DialogFragment . (I am setting the dialog contents using onCreateView overload).
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Debugging automatic properties
Is there any way to set breakpoint on setter/getter in auto-implemented property?
5 Answers
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Using smart pointers for class members
...ointed to by your (smart) pointer.
Is it going to be the instance of the Settings object alone? Will the Device object have to be destroyed automatically when the Settings object gets destroyed, or should it outlive that object?
In the first case, std::unique_ptr is what you need, since it makes...
How do I specify “close existing connections” in sql script
...veryone and roll back their transactions with:
alter database [MyDatbase] set single_user with rollback immediate
After that, you can safely drop the database :)
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