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Why wasn't PyPy included in standard Python?

I was looking at PyPy and I was just wondering why it hasn't been adopted into the mainline Python distributions. Wouldn't things like JIT compilation and lower memory footprint greatly improve the speeds of all Python code? ...
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Difference between JAX-WS, Axis2 and CXF

...gs besides just JAX-WS. It has a compliant JAX-RS implementation as well and supports exposing services as both REST and SOAP very well. Has a W3C compliant SOAP/JMS implementation if that type of things is required. Basically, lots of stuff not available from the in-jdk JAX-WS impl. Also see:...
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Algorithm to detect intersection of two rectangles?

... The standard method would be to do the separating axis test (do a google search on that). In short: Two objects don't intersect if you can find a line that separates the two objects. e.g. the objects / all points of an object ar...
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Convert HTML to PDF in .NET

...iTextSharp for this but it does not perform well when it encounters tables and the layout just gets messy. 38 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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Convert datetime to Unix timestamp and convert it back in python

I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object. 11 Answers ...
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In which order should floats be added to get the most precise result?

This was a question I was asked at my recent interview and I want to know (I don't actually remember the theory of the numerical analysis, so please help me :) ...
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Why is IntelliJ 13 IDEA so slow after upgrading from version 12?

... 12. What worked for me was editing the idea64.vmoptions in the bin folder and setting the max heap to 8 GB (was 512 MB) and the Max PermGen to at least 1GB (was 300MB).Example below: -Xms128m -Xmx8192m -XX:MaxPermSize=1024m Upon restart it was much faster. For IntelliJ 2020 going back to 2017 o...
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Is there a wikipedia API just for retrieve content summary?

...lagship site of the Stack Exchange Network, created in 2008 by Jeff Atwood and Joel Spolsky, as a more open alternative to earlier Q&A sites such as Experts Exchange. The name for the website was chosen by voting in April 2008 by readers of Coding Horror, Atwood's popular programming blog.\nIt f...
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Internet Explorer 11 detection

...t && !!document.documentMode; // true on IE11 // false on Edge and other IEs/browsers. Original Answer In order to check Ie11 , you can use this : ( tested) (or run this) !(window.ActiveXObject) && "ActiveXObject" in window I have all VMS of IE : Notice : this w...