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defaultdict of defaultdict?
...ultdict(int)) will be called when you try to access a key that don't exist and the return value of it will be set as the new value of this key which mean in our case the value of d[Key_dont_exist] will be defaultdict(int), and if you try to access a key from this last defaultdict i.e. d[Key_dont_exi...
Download File to server from URL
Well, this one seems quite simple, and it is. All you have to do to download a file to your server is:
10 Answers
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How to See the Contents of Windows library (*.lib)
...ibrary (*.lib).
Is there a simple way to find out names of the functions and their interface from that library ?
8 Answer...
What's the best way to store Phone number in Django models
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You might actually look into the internationally standardized format E.164, recommended by Twilio for example (who have a service and an API for sending SMS or phone-calls via REST requests).
This is likely to be the most universal way to store phone numbers, in particular ...
How do I catch an Ajax query post error?
I would like to catch the error and show the appropriate message if the Ajax request fails.
8 Answers
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Converting integer to binary in python
...fter the colon is the formatting, the second 0 means zero fill to 8 spaces and b for binary
– jamylak
May 2 '12 at 9:39
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Where is android studio building my .apk file?
...ocal path doesn't exist.' , where the local path is pointing at the path: AndroidStudioProjects\MyProject\MyProject..\build\production\MyProject.apk , and true enough, there is no .apk file at that location, or indeed anywhere else in the project filesystem.
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Invoking a static method using reflection
...ect of type Class , but I am not able to create an instance of that class and also not able to invoke the static method main .
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Subset of rows containing NA (missing) values in a chosen column of a data frame
...m a CSV file. The data frame DF has columns that contain observed values and a column ( VaR2 ) that contains the date at which a measurement has been taken. If the date was not recorded, the CSV file contains the value NA , for missing data.
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Why does Math.round(0.49999999999999994) return 1?
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Summary
In Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0.49999999...