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Unique fields that allow nulls in Django
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Updated answer here works well in 2016 with Django 1.10 and using EmailField.
– k0nG
Nov 16 '16 at 12:26
4
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Fastest way to extract frames using ffmpeg?
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Feb 2016: as of ffmpeg 2.1, the accurate seek option is now default - trac.ffmpeg.org/wiki/Seeking
– mafrosis
Feb 7 '16 at 7:19
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Convert one date format into another in PHP
... Create a new DateTime object
$date = DateTime::createFromFormat('Y-m-d', '2016-03-25');
// Output the date in different formats
echo $date->format('Y-m-d')."\n";
echo $date->format('d-m-Y')."\n";
echo $date->format('m-d-Y')."\n";
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Is it possible to install another version of Python to Virtualenv?
...l use 3.5.2, because it it the latest version at this time of writing (Aug 2016).
conda create -n py35 python=3.5.2
Will create a environment for conda to install packages
To activate this environment(I'm assuming linux otherwise check the conda docs):
source activate py35
Now install wha...
Maven in Eclipse: step by step installation [closed]
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(Edit 2016-10-12: Many Eclipse downloads from https://eclipse.org/downloads/eclipse-packages/ have M2Eclipse included already. As of Neon both the Java and the Java EE packages do - look for "Maven support")
Way 1: Maven Eclipse ...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...。
本文作者： bhpike65
本文链接： http://www.cnhalo.net/2016/06/13/memory-optimize/
ptmalloc tcmalloc jemalloc
What is this date format? 2011-08-12T20:17:46.384Z
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Is this "2016-01-27T17:44:55UTC", ISO8601 too ?
– user1997292
Jan 28 '16 at 9:55
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How to upgrade Git on Windows to the latest version?
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Update (26SEP2016): It is no longer needed to uninstall your previous version of git to upgraded it to the latest; the installer package found at git win download site takes care of all. Just follow the prompts. For additional informati...
pandas three-way joining multiple dataframes on columns
...work with whatever number of dataframes you want to merge.
Edit August 1, 2016: For those using Python 3: reduce has been moved into functools. So to use this function, you'll first need to import that module:
from functools import reduce
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Disable IPython Exit Confirmation
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@CiroSantilli烏坎事件2016六四事件法轮功, with 3.2.1 it isn't - this version even prints usr/lib/python3.5/site-packages/IPython/utils/path.py:291: UserWarning: Ignoring ~/.config/ipython in favour of ~/.ipython. and in the code We have dec...