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How do I update a Python package?

I'm running Ubuntu 9:10 and a package called M2Crypto is installed (version is 0.19.1). I need to download, build and install the latest version of the M2Crypto package (0.20.2). ...
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Eclipse / Android : “Errors running builder 'Android Pre Compiler' on project…”

Attempting to do some work on an Android project I haven't worked on for a couple of months, yet every time I attempt to build the project Eclipse throws up a dialog saying: ...
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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?

Is there any difference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations? 5 Answers ...
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Is Java Regex Thread Safe?

I have a function that uses Pattern#compile and a Matcher to search a list of strings for a pattern. 5 Answers ...
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How to validate an Email in PHP?

... You can use the filter_var() function, which gives you a lot of handy validation and sanitization options. filter_var($email, FILTER_VALIDATE_EMAIL) PHP Manual filter_var() Available in PHP >= 5.2.0 If you don't want to change your code that relied on your function, just do: func...
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HTTP vs HTTPS performance

Are there any major differences in performance between http and https? I seem to recall reading that HTTPS can be a fifth as fast as HTTP. Is this valid with the current generation webservers/browsers? If so, are there any whitepapers to support it? ...
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Django South - table already exists

I am trying to get started with South. I had an existing database and I added South ( syncdb , schemamigration --initial ). ...
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CSS “andand “or”

... Ok, thanks for light. I hate styling forms, but it's my task, and site isn't mine. I'll apply classes to inputs. – Misiur May 9 '10 at 9:02 5 ...
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Difference between author and committer in Git?

... is the person who originally wrote the code. The committer, on the other hand, is assumed to be the person who committed the code on behalf of the original author. This is important in Git because Git allows you to rewrite history, or apply patches on behalf of another person. The FREE online Pro G...
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How can I make grep print the lines below and above each matching line? [duplicate]

I have to parse a very large file and I want to use the command grep (or any other tool). 3 Answers ...