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PyPy — How can it possibly beat CPython?

...nted in RPython which is a statically typed subset of Python (the language and not the CPython interpreter). - Refer https://pypy.readthedocs.org/en/latest/architecture.html for details. Q3. And what are the chances of a PyPyPy or PyPyPyPy beating their score? That would depend on the implementati...
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Difference between Pig and Hive? Why have both? [closed]

...y background - 4 weeks old in the Hadoop world. Dabbled a bit in Hive, Pig and Hadoop using Cloudera's Hadoop VM. Have read Google's paper on Map-Reduce and GFS ( PDF link ). ...
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What is the difference between Scala's case class and class?

I searched in Google to find the differences between a case class and a class . Everyone mentions that when you want to do pattern matching on the class, use case class. Otherwise use classes and also mentioning some extra perks like equals and hash code overriding. But are these the only reasons...
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what is the difference between ?:, ?! and ?= in regex?

I searched for the meaning of these expressions but couldn't understand the exact difference between them. This is what they say: ...
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How can you do anything useful without mutable state?

I've been reading a lot of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard:...
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Is it possible to cache POST methods in HTTP?

With very simple caching semantics: if the parameters are the same (and the URL is the same, of course), then it's a hit. Is that possible? Recommended? ...
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Why do we use __init__ in Python classes?

I am having trouble understanding the Initialization of classes. 8 Answers 8 ...
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Git copy file preserving history [duplicate]

... confusing question in Git. Lets say, I have a file dir1/A.txt committed and git preserves a history of commits 7 Answers...
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Why does typeof NaN return 'number'?

...eration which return NaN: Operations with a NaN as at least one operand Indeterminate forms The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−∞ The multiplications 0×∞ and 0×−∞ The power 1^∞ The additions ∞ + (−∞), (−∞) + ∞ and e...
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What are the best practices for SQLite on Android?

... the best practices when executing queries on an SQLite database within an Android app? 10 Answers ...