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How can I check if an ip is in a network in Python?

... This article shows you can do it with socket and struct modules without too much extra effort. I added a little to the article as follows: import socket,struct def makeMask(n): "return a mask of n bits as a long integer" return (2L<<n-1) - 1 def dotted...
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What is the fastest way to send 100,000 HTTP requests in Python?

... file which has 100,000 URL's. I need to send an HTTP request to each URL and print the status code. I am using Python 2.6, and so far looked at the many confusing ways Python implements threading/concurrency. I have even looked at the python concurrence library, but cannot figure out how to wri...
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Open URL under cursor in Vim with browser

...rom tpope's tweet today Press gx. You can customize the browser. On Gnome and Mac OS X it's already use gnome-open/open. Generally you can set g:netrw_browsex_viewer to anything you want. Original answer: Don't remember where I get this function. There is a bug with hash (#) in the url, but the...
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How to permanently add a private key with ssh-add on Ubuntu? [closed]

...ate one. It does not need root rights, so simply: nano ~/.ssh/config ...and enter the lines above as per your requirements. For this to work the file needs to have chmod 600. You can use the command chmod 600 ~/.ssh/config. If you want all users on the computer to use the key put these lines in...
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Use C++ with Cocoa Instead of Objective-C?

I would like to write applications that use C++ and the Cocoa frameworks because Apple is not making Carbon 64-bit capable. C++ seems to be pretty vanilla in its implementation on Linux and Windows but on Mac OS X it seems like additional Apple specific pieces of code are required (like an Obj-C wra...
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Why is ArrayDeque better than LinkedList

I am trying to to understand why Java's ArrayDeque is better than Java's LinkedList as they both implement Deque interface. ...
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Python concatenate text files

...each file by f = open(...) , read line by line by calling f.readline() , and write each line into that new file. It doesn't seem very "elegant" to me, especially the part where I have to read//write line by line. ...
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FTP/SFTP access to an Amazon S3 Bucket [closed]

...o set up). Or you can mount the bucket to a file system on a Linux server and access the files using the SFTP as any other files on the server (which gives you greater control). Or you can just use a (GUI) client that natively supports S3 protocol (what is free). Managed SFTP Service In your...
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How do you echo a 4-digit Unicode character in Bash?

I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", . ...
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How can I reverse the order of lines in a file?

... BSD tail: tail -r myfile.txt Reference: FreeBSD, NetBSD, OpenBSD and OS X manual pages. share | improve this answer | follow | ...