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The tilde operator in Python
... the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support this operator in your own class, g...
ImportError in importing from sklearn: cannot import name check_build
...Mannu Yes; Also for me on jupyter notebook, just restarting (shutting down and click-open again) that ipynb py-kernel worked without restarting all of the jupyter notebook.
– Abhimanu Kumar
May 2 '18 at 15:01
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CodeIgniter: Create new helper?
I need to loop lot of arrays in different ways and display it in a page. The arrays are generated by a module class. I know that its better not to include functions on 'views' and I want to know where to insert the functions file.
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How do I create a round cornered UILabel on the iPhone?
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iOS 3.0 and later
iPhone OS 3.0 and later supports the cornerRadius property on the CALayer class. Every view has a CALayer instance that you can manipulate. This means you can get rounded corners in one line:
view.layer.cornerRadi...
how to show lines in common (reverse diff)?
...ines in common rather than the lines which are different between them. Command line unix or windows is fine.
7 Answers
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How to execute AngularJS controller function on page load?
Currently I have an Angular.js page that allows searching and displays results. User clicks on a search result, then clicks back button. I want the search results to be displayed again but I can't work out how to trigger the search to execute. Here's the detail:
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How do I diff the same file between two different commits on the same branch?
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For instance, to see the difference for a file "main.c" between now and two commits back, here are three equivalent commands:
$ git diff HEAD^^ HEAD main.c
$ git diff HEAD^^..HEAD -- main.c
$ git diff HEAD~2 HEAD -- main.c
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The difference between sys.stdout.write and print?
...t formats the inputs (modifiable, but by default with a space between args and newline at the end) and calls the write function of a given object. By default this object is sys.stdout, but you can pass a file using the "chevron" form. For example:
print >> open('file.txt', 'w'), 'Hello', 'Wor...
Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
... between getContext() , getApplicationContext() , getBaseContext() , and " this "?
8 Answers
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One line ftp server in python
Is it possible to have a one line command in python to do a simple ftp server? I'd like to be able to do this as quick and temporary way to transfer files to a linux box without having to install a ftp server. Preferably a way using built in python libraries so there's nothing extra to install.
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