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ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'

... how can I go to bash?I had problem installing mysql see here superuser.com/questions/377679/… I just know abt it in command line – Nickool Jan 12 '12 at 17:01 ...
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Determine the type of an object?

...object, and isinstance() to check an object’s type against something. Usually, you want to use isistance() most of the times since it is very robust and also supports type inheritance. To get the actual type of an object, you use the built-in type() function. Passing an object as the only param...
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How do I make a textarea an ACE editor?

...function(){ textarea.val(editor.getSession().getValue()); }); or just call textarea.val(editor.getSession().getValue()); only when you submit the form with the given textarea. I'm not sure whether this is the right way to use Ace, but it's the way it is used on GitHub. ...
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Clojure differences between Ref, Var, Agent, Atom, with examples

... one bank account to another, it needs to either move completely or not at all. Uncoordinated access is used when only one Identity needs to update, this is a very common case. Synchronous access is used when the call is expected to wait until all Identities have settled before continuing. Asy...
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Get model's fields in Django

Given a Django model, I'm trying to list all of its fields. I've seen some examples of doing this using the _meta model attribute, but doesn't the underscore in front of meta indicate that the _meta attribute is a private attribute and shouldn't be accessed directly? ... Because, for example, the ...
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Remove leading or trailing spaces in an entire column of data

How do I remove leading or trailing spaces of all cells in an entire column? 6 Answers ...
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Why use prefixes on member variables in C++ classes

...before a capital letter in a word is reserved. For example: _Foo _L are all reserved words while _foo _l are not. There are other situations where leading underscores before lowercase letters are not allowed. In my specific case, I found the _L happened to be reserved by Visual C++ 2005 and ...
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CSS last-child selector: select last-element of specific class, not last child inside of parent?

...se this method to select the first-child of a class. /* 1: Apply style to ALL instances */ #header .some-class { padding-right: 0; } /* 2: Remove style from ALL instances except FIRST instance */ #header .some-class~.some-class { padding-right: 20px; } This is actually applying the class to t...
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What does 'super' do in Python?

... What's the difference? SomeBaseClass.__init__(self) means to call SomeBaseClass's __init__. while super(Child, self).__init__() means to call a bound __init__ from the parent class that follows Child in the instance's Method Resolution Order (MRO). If the instance is a subclass of ...
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How can I set the aspect ratio in matplotlib?

...tly controlled aspect ratio, but it seems to be ignored once an imshow is called. Original Answer: Here's an example of a routine that will adjust the subplot parameters so that you get the desired aspect ratio: import matplotlib.pyplot as plt def adjustFigAspect(fig,aspect=1): ''' Adju...