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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]

...to be in Ruby 1.8.7. Looks like it was added in 1.9.3: apidock.com/ruby/v1_9_3_392/SecureRandom/uuid/class – existentialmutt Aug 25 '14 at 17:31 2 ...
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Extracting text from HTML file using Python

...'d like to extract the text from an HTML file using Python. I want essentially the same output I would get if I copied the text from a browser and pasted it into notepad. ...
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Perl flags -pe, -pi, -p, -w, -d, -i, -t?

...eem to be mostly made up of punctuation :-) The command line switches are all detailed in perlrun. (available from the command line by calling perldoc perlrun) Going into the options briefly, one-by-one: -p: Places a printing loop around your command so that it acts on each line of standard ...
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How do I delete from multiple tables using INNER JOIN in SQL server

... then delete from next table instead of using inner join and going through all of this extra text?? Basically, skipping the inner join I just need 2 simple queries.... Or is this method any more efficient? – Colandus Mar 10 '13 at 13:16 ...
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Mocking a class: Mock() or patch()?

...ake a look at this snippet: >>> class MyClass(object): ... def __init__(self): ... print 'Created MyClass@{0}'.format(id(self)) ... >>> def create_instance(): ... return MyClass() ... >>> x = create_instance() Created MyClass@4299548304 >>> >>&gt...
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Copy folder recursively, excluding some folders

...kHuginnsson - What systems are you using? Rsync is included by default in all mainstream Linux distros I know of, including RHEL, CentOS, Debian, and Ubuntu, and I believe it's in FreeBSD as well. – siliconrockstar Jan 30 '15 at 19:50 ...
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How can I get dictionary key as variable directly in Python (not by searching from value)?

...f you want to print key and value, use the following: for key, value in my_dict.iteritems(): print key, value share | improve this answer | follow | ...
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iReport not starting using JRE 8

I have downloaded and installed the iReport 4.5 using te Windows installer. But when I try to start the iReport it shows the splash screen but does not start. ...
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git ignore vim temporary files

...t is the correct way to make git ignore temporary files produced by vim in all directories (either globally across the system or locally for a single project)? ...
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subtle differences between JavaScript and Lua [closed]

...= operators are of lower precedence than >, >=, <, <=. In Lua, all comparison operators are the same precedence. Lua supports tail calls. UPDATE: JS now supports tail calls. Lua supports assignment to a list of variables. While it isn't yet standard in Javascript, Mozilla's JS engine ...