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Use numpy array in shared memory for multiprocessing

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How to keep index when using pandas merge

... In [5]: a.reset_index().merge(b, how="left").set_index('index') Out[5]: col1 to_merge_on col2 index a 1 1 1 b 2 3 2 c 3 4 NaN Note that for some left me...
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How to install psycopg2 with “pip” on Python?

... answered Mar 27 '11 at 15:25 joarjoar 10.9k11 gold badge2424 silver badges5151 bronze badges ...
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Are trailing commas in arrays and objects part of the spec?

... Specs: ECMAScript 5 and ECMAScript 3 Section 11.1.5 in the ECMAScript 5 specification: ObjectLiteral : { } { PropertyNameAndValueList } { PropertyNameAndValueList , } So yes, it is part of the specification. Update: Appare...
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How to make lists contain only distinct element in Python? [duplicate]

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What does map(&:name) mean in Ruby?

... 519 It's shorthand for tags.map(&:name.to_proc).join(' ') If foo is an object with a to_proc ...
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advantage of tap method in ruby

... 105 When readers encounter: user = User.new user.username = "foobar" user.save! they would have t...
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GetProperties() to return all properties for an interface inheritance hierarchy

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Why NSUserDefaults failed to save NSMutableDictionary in iOS?

... edited Apr 19 '16 at 8:29 brush51 5,39866 gold badges3333 silver badges7171 bronze badges answered Jan 23 '09 at 4:56 ...
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How to delete a property from Google Analytics

... UPDATE/EDIT – December 5, 2014 : Converted this to community wiki… feel invited to edit and update. UPDATE/EDIT – AUGUST 1, 2014 Google has done it again… they changed the design. But they also made things a bit simpler and more logic. G...