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Way to read first few lines for pandas dataframe

... which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines): In [1]: import pandas as pd In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20) CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s Wall time: 0.00 s In [3]: len(z) Out[3]: 20 In [4]: time...
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Execute SQLite script

I start up sqlite3 version 3.7.7, unix 11.4.2 using this command: 5 Answers 5 ...
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Doctrine and composite unique keys

... answered Sep 29 '12 at 7:57 NikooleNikoole 3,57333 gold badges1515 silver badges2222 bronze badges ...
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Django connection to PostgreSQL: “Peer authentication failed”

... | edited Sep 18 '17 at 11:05 answered Nov 22 '11 at 18:39 ...
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Installing MSBuild 4.0 without Visual Studio 2010

... Perhaps this is the SDK disguised slightly as a Windows 7 SDK. Microsoft Windows SDK for Windows 7 and .NET Framework 4 UPDATE: Based off of a blog posts on the Windows SDK Blog the SDK that I linked to above seems to contain msbuild and supports building managed (.NET) applicat...
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.net implementation of bcrypt

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Is there a way to iterate over a dictionary?

... edited Aug 16 '09 at 15:27 Quinn Taylor 43.3k1515 gold badges107107 silver badges127127 bronze badges a...
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Git flow release branches and tags - with or without “v” prefix

... | edited May 23 '17 at 10:31 Community♦ 111 silver badge answered Feb 7 '14 at 23:52 ...
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What does the > (greater than bracket) mean beside file names in Eclipse's Package Explorer?

I'm setting up a new dev machine with Eclipse 3.7 Indigo. After pulling a my code down from SVN, the source tree in the Package Explorer is intermittently littered with a > to the left of the file name The parent package names have them too. (Note that this is an AspectJ project, but I don't thi...
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How to alias a table in Laravel Eloquent queries (or using Query Builder)?

...l table. – peterm Apr 21 '15 at 15:17 1 @peterm what if I use query builder in eloquent? I mean e...