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Where in a virtualenv does the custom code go?
...rectory structure should one follow when using virtualenv ? For instance, if I were building a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
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How to add column if not exists on PostgreSQL?
...when x column doesn't exist ? I found only solution here how to check if column exists.
11 Answers
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Why are regular expressions so controversial? [closed]
When exploring regular expressions (otherwise known as RegEx-es), there are many individuals who seem to see regular expressions as the Holy Grail. Something that looks so complicated - just must be the answer to any question. They tend to think that every problem is solvable using regular express...
Check if a JavaScript string is a URL
Is there a way in JavaScript to check if a string is a URL?
32 Answers
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When to use static vs instantiated classes
...imic the JavaScript prototype object in PHP 5.3) static members is when I know that the respective field will have the same value cross-instance. At that point you can use a static property and maybe a pair of static getter/setter methods. Anyway, don't forget to add possibility for overriding the s...
How to create a date and time picker in Android? [closed]
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There is nothing built into Android that offers this.
EDIT: Andriod now offers built-in pickers. Check @Oded answer
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django urls without a trailing slash do not redirect
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"When set to True, if the request URL does not match any of the patterns in the URLconf and it doesn’t end in a slash, an HTTP redirect is issued to the same URL with a slash appended. Note that the redirect may cause any data submitted in a ...
Add params to given URL in Python
... read-only and we need to convert it to a list before we can attempt to modify its data.
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Call static method with reflection
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You may want to add BindingFlags.FlattenHierarchy if the method resides in an ancestor class.
– J. Ouwehand
Jun 8 '19 at 14:51
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Dynamic variable names in Bash
... magic_variable[$1]=$( ls | tail -1 )
echo ${magic_variable[$1]}
}
If you can't use associative arrays (e.g., you must support bash 3), you can use declare to create dynamic variable names:
declare "magic_variable_$1=$(ls | tail -1)"
and use indirect parameter expansion to access the valu...