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How do I update pip itself from inside my virtual environment?
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Running this shown me a lot of stuff including Download error on https://pypi.python.org/simple/pip/: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) -- Some packages may not be found! which wasn't displayed when running --upgrade. ...
GLib compile error (ffi.h), but libffi is installed
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When compling libffi 3.0.9 from source code, the include/Makefile.in installs the includes in the ${PREFIX}/lib/libffi-3.0.9/include directory. I'm sure there's a WONDERFUL reason for that, but I'm annoyed by it.
This line fixes it, when compiling libffi:
/bin/perl -pe 's...
Java time-based map/cache with expiring keys [closed]
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@ShervinAsgari for the sake of beginners (myself included), could you switch your updated guava example to one that uses Cache instead of LoadingCache? It would match the question better (since LoadingCache has features that exceed a map with expiring entries and is far mor...
Python 3.x rounding behavior
...e Decimal.
All rounding options are available from the decimal module including
ROUND_CEILING, ROUND_DOWN, ROUND_FLOOR, ROUND_HALF_DOWN, ROUND_HALF_EVEN,
ROUND_HALF_UP, ROUND_UP, and ROUND_05UP.
examples:
>>> trueround(2.5, 0) == Decimal('3')
True
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Hash function that produces short hashes?
...llisions, but not as bad as simply truncating the digest.
Also, you could include the length of the original data as part of the result to make it more unique. For example, XORing the first half of an MD5 digest with the second half would result in 64 bits. Add 32 bits for the length of the data (o...
Attempt by security transparent method 'WebMatrix.WebData.PreApplicationStartCode.Start()'
...e app that's been compiled by VS2013 without the WebMatrix DLLS explicitly included in the app bin directory. Note that, if you delete the 4 WebMatrix files from the 2015 output, and restart IIS, the problem goes away.
– Simon Green
May 11 '16 at 15:15
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Nginx not picking up site in sites-enabled?
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Changing from:
include /etc/nginx/sites-enabled/*;
to
include /etc/nginx/sites-enabled/*.*;
fixed my issue
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Most efficient way to convert an HTMLCollection to an Array
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This works in all browsers including earlier IE versions.
var arr = [];
[].push.apply(arr, htmlCollection);
Since jsperf is still down at the moment, here is a jsfiddle that compares the performance of different methods. https://jsfiddle.net/qw9qf48...
How to export data as CSV format from SQL Server using sqlcmd?
... -Path "DimDate.csv" `
-Encoding UTF8
SQL Server 2016 includes the SqlServer module, which contains the Invoke-Sqlcmd cmdlet, which you'll have even if you just install SSMS 2016. Prior to that, SQL Server 2012 included the old SQLPS module, which would change the current direct...
How to check if a value exists in an array in Ruby
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You're looking for include?:
>> ['Cat', 'Dog', 'Bird'].include? 'Dog'
=> true
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