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How to overcome TypeError: unhashable type: 'list'

...e split the file on `x`, since the part before the x will be # the key and the part after the value line = line.split('x') # Take the line parts and strip out the spaces, assigning them to the variables # Once you get a bit more comfortable, this works as well: # key, value = [x....
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Calling Java varargs method with single null argument?

If I have a vararg Java method foo(Object ...arg) and I call foo(null, null) , I have both arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening? ...
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How do I iterate through the alphabet?

... addition to string.ascii_lowercase you should also take a look at the ord and chr built-ins. ord('a') will give you the ascii value for 'a' and chr(ord('a')) will give you back the string 'a'. Using these you can increment and decrement through character codes and convert back and forth easily eno...
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Django optional url parameters

...to rename the product kwarg to product_id, you only have to change line 4, and it will affect the below URLs. Edited for Django 1.8 and above share | improve this answer | f...
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Stop execution of Ruby script

...says in the other answer, use abort to specify a failed end to the script, and exit for a successful end. – Jrgns Jul 1 '14 at 6:04 add a comment  |  ...
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Change Image of ImageView programmatically in Android

...ricyicy says, the problem is that the xml is defining the background image and the code is changing the resource image. Those are not the same. Setting the resource image is what is actually desired here, so the xml should be fixed. – Martin Epsz Oct 20 '15 at ...
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What does jQuery.fn mean?

...pe property. The jQuery identifier (or $) is just a constructor function, and all instances created with it, inherit from the constructor's prototype. A simple constructor function: function Test() { this.a = 'a'; } Test.prototype.b = 'b'; var test = new Test(); test.a; // "a", own property t...
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String.Empty versus “” [duplicate]

... As the duplicate say, its not different in .NET 2 and above. – JoeBilly May 28 '10 at 12:27 8 ...
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YouTube Video Embedded via iframe Ignoring z-index?

... I stumbled upon a similar solution at manisheriar.com/blog/flash_objects_and_z_index The key seems to be using both name="wmode" value="transparent" on a <param> and wmode="transparent" on the <embed>. As I suspected, it's not an iframe issue. It seems to be an issue with Flash want...
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String to Dictionary in Python

So I've spent way to much time on this, and it seems to me like it should be a simple fix. I'm trying to use Facebook's Authentication to register users on my site, and I'm trying to do it server side. I've gotten to the point where I get my access token, and when I go to: ...