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How can I tell which homebrew formulae are upgradable?

I know when I brew update , it lists all ==> Updated Formulae , but when I've updated several times without running brew upgrade , how do I get a list of all apps that could be upgraded? ...
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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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Why is “if not someobj:” better than “if someobj == None:” in Python?

...a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly used, or an int value that is considered False if equal to zero. Otherwise, if the object has a __len__ special method (as do container built-ins, li...
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$apply vs $digest in directive testing

... scope.$digest() will fire watchers on the current scope, and on all of its children, too. scope.$apply will evaluate passed function and run $rootScope.$digest(). The first one is faster, as it needs to evaluate watchers for current scope and its children. The second one is slower, as it...
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jsonify a SQLAlchemy result set in Flask [duplicate]

... It seems that you actually haven't executed your query. Try following: return jsonify(json_list = qryresult.all()) [Edit]: Problem with jsonify is, that usually the objects cannot be jsonified automatically. Even Python's datetime fails ;) Wha...
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How to implement “select all” check box in HTML?

.../script> <input type="checkbox" onClick="toggle(this)" /> Toggle All<br/> <input type="checkbox" name="foo" value="bar1"> Bar 1<br/> <input type="checkbox" name="foo" value="bar2"> Bar 2<br/> <input type="checkbox" name="foo" value="bar3"> Bar 3<br/&...
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Set attributes from dictionary in python

...key]) Update As Brent Nash suggests, you can make this more flexible by allowing keyword arguments as well: class Employee(object): def __init__(self, *initial_data, **kwargs): for dictionary in initial_data: for key in dictionary: setattr(self, key, dicti...
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The object 'DF__*' is dependent on column '*' - Changing int to double

Basically I got a table in my EF database with the following properties: 8 Answers 8 ...
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Can modules have properties the same way that objects can?

...s? When I put this code in one file x.py and import it from another, then calling x.y results in AttributeError: 'NoneType' object has no attribute 'c', since _M somehow has value None... – Stephan202 May 19 '09 at 1:35 ...
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Psql list all tables

I would like to list all tables in the liferay database in my PostgreSQL install. How do I do that? 6 Answers ...