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What is the purpose of the single underscore “_” variable in Python?
What is the meaning of _ after for in this code?
5 Answers
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Difference between break and continue statement
Can anyone tell me the difference between break and continue statements?
21 Answers
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How to automatically install Emacs packages by specifying a list of package names?
I am using package to manage my Emacs extensions. In order to synchronize my Emacs settings on different computers, I'd like a way to specify a list of package names in .emacs file and then package could automatically search and install the packages, so that I don't need to install them manual...
How long do browsers cache HTTP 301s?
I am debugging a problem with a HTTP 301 Permanent Redirect. After a quick test, it seems that Safari clears its cache of 301s when it is restarted, but Firefox does not.
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How can I backup a remote SQL Server database to a local drive?
I need to copy a database from a remote server to a local one. I tried to use SQL Server Management Studio, but it only backs up to a drive on the remote server.
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How do I set the figure title and axes labels font size in Matplotlib?
I am creating a figure in Matplotlib like this:
9 Answers
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How to configure Git post commit hook
How to trigger a build remotely from Jenkins?
How to configure Git post commit hook?
4 Answers
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Difference between modes a, a+, w, w+, and r+ in built-in open function?
In the python built-in open function, what is the exact difference between the modes w , a , w+ , a+ , and r+ ?
6 An...
jquery get all form elements: input, textarea & select
Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements.
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Where can I get a list of Ansible pre-defined variables?
I see that Ansible provide some pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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