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Multiple levels of 'collection.defaultdict' in Python

... def _sub_getitem(self, k): try: # sub.__class__.__bases__[0] real_val = self.__class__.mro()[-2].__getitem__(self, k) val = '' if real_val is None else real_val except Exception: val = '' real_val = None # isinstance(Avoid,dict)也是t...
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RSA Public Key format

...ils of your RSA PUBLIC KEY structure using grep -v -- ----- | tr -d '\n' | base64 -d | openssl asn1parse -inform DER: 0:d=0 hl=4 l= 266 cons: SEQUENCE 4:d=1 hl=4 l= 257 prim: INTEGER :FB1199FF0733F6E805A4FD3B36CA68E94D7B974621162169C71538A539372E27F3F51DF3B08B2E111C2D6...
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Convert Pixels to Points

...in = 72pt = 150px (for 150dpi setting) If you want to find points (pt) based on pixels (px): 72 pt x pt ------ = ----- (1) for 150dpi system 150 px y px Rearranging: x = (y/150) * 72 (2) for 150dpi system so: points = (pixels / 150) * 72 (3) for 1...
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How to write a foreach in SQL Server?

...m to want to use a CURSOR. Though most of the times it's best to use a set based solution, there are some times where a CURSOR is the best solution. Without knowing more about your real problem, we can't help you more than that: DECLARE @PractitionerId int DECLARE MY_CURSOR CURSOR LOCAL STATIC ...
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showDialog deprecated. What's the alternative?

.... This fragment contains a Dialog object, which it displays as appropriate based on the fragment's state. Control of the dialog (deciding when to show, hide, dismiss it) should be done through the API here, not with direct calls on the dialog. Here is a nice discussion Android DialogFragment vs Dial...
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Where to get “UTF-8” string literal in Java?

... http://guava-libraries.googlecode.com/svn/trunk/javadoc/com/google/common/base/Charsets.html share | improve this answer | follow | ...
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How to implement has_many :through relationships with Mongoid and mongodb?

...nship have hunders|thousands of records) because it gets the data from database, build each record, generates the original array and then iterates over the original array to build a new one with the values from the given block. Using pluck is faster and maybe the fastest option. class Physician ...
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Why do we declare Loggers static final?

...ss. Generally, this is what you want - as the loggers tend to vary solely based on class. final means that you're not going to change the value of the logger variable. Which is true, since you almost always throw all log messages (from one class) to the same logger. Even on the rare occasions wh...
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Draw multi-line text to Canvas

... This is my solution that is based on @Dave's answer (thanks btw ;-) ) import android.graphics.Canvas; import android.graphics.Paint; public class mdCanvas { private Canvas m_canvas; public mdCanvas(Canvas canvas) { m_canvas = canv...
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jQuery - select all text from a textarea

...f copying to the clipboard, which isn't possible in script without a Flash-based library like ZeroClipboard. – Tim Down Sep 13 '11 at 9:05  |  ...