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UnicodeDecodeError when redirecting to file
...in byte chunks. The necessary process that converts characters to bytes is called encoding. Thus, a computer requires an encoding in order to represent characters. Any text present on your computer is encoded (until it is displayed), whether it be sent to a terminal (which expects characters encod...
How can I add a table of contents to a Jupyter / JupyterLab notebook?
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For all headings in your markdowns, notebook automatically adds anchors. You can click on the pilcrow (¶) on the right of the headings that you see when you hover over them, to reveal the anchor in your browser address bar. You can use this anchor instead of adding anchors man...
Recommended way to stop a Gradle build
...you don't have any desire to be able to catch the exception later on is to call the ant fail task. It's slightly easier to read in my opinion and you can give a nice message to the user without use of --stacktrace.
task (tarball, dependsOn: warAdmin) << {
ant.fail('The sky is falling!!')...
How do I explicitly specify a Model's table-name mapping in Rails?
I have a Model class called Countries and I want it to map to a DB table called 'cc'.
2 Answers
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Python - When to use file vs open
... is going away.
file is the actual type (using e.g. file('myfile.txt') is calling its constructor). open is a factory function that will return a file object.
In python 3.0 file is going to move from being a built-in to being implemented by multiple classes in the io library (somewhat similar to J...
How to convert lazy sequence to non-lazy in Clojure
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I believe you just call realized?.
– toofarsideways
Feb 1 '12 at 2:40
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What are metaclasses in Python?
...lass is an instance of a metaclass.
While in Python you can use arbitrary callables for metaclasses (like Jerub shows), the better approach is to make it an actual class itself. type is the usual metaclass in Python. type is itself a class, and it is its own type. You won't be able to recreate some...
Encoding an image file with base64
...image_data="+repr(image_data))
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Now the image is stored as a variable called image_data in a file called image.py
Start a fresh interpreter and import the image_data
>>> from image import image_data
>>>
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Exporting functions from a DLL with dllexport
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I used this to compile a DLL with VS and then call it from R using .C. Great!
– Juancentro
Feb 22 '15 at 19:17
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Getting Spring Application Context
Is there a way to statically/globally request a copy of the ApplicationContext in a Spring application?
16 Answers
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