kme + solution   2693

How can I send POST and GET data to a Perl CGI script via the command line? - Stack Overflow | https://stackoverflow.com/
<code class="language-perl">#! /usr/bin/perl
use warnings;
use strict;

use CGI qw/ :standard -debug /;

print "Content-type: text/plain\n\n",
map { $_ . " => " . param($_) . "\n" }
param;</code>

Also interesting:
To give a cgi script post data:
<code class="language-bash">$ echo -n 'a=b;c=d' | REQUEST_METHOD=POST CONTENT_LENGTH=999 perl index.cgi</code>

To give a cgi script get data:
<code class="language-bash">
$ perl index.cgi 'a=b;c=d'</code>


Of *course* that's how CGI works, but it's easy to forget that's how it works.
perl  webdevel  cgi  cgi.pm  testing  debugging  commandline  dammitbrain  solution 
yesterday by kme
python - get table columns from sqlAlchemy table model - Stack Overflow | https://stackoverflow.com/
You get all of the columns from __table__.columns:
<code class="language-python">myTable.__table__.columns</code>

or
<code class="language-python">myTable.__table__.c</code>

The columns would be in format myTable.col1 (table name is included). If you want just column names, get the .key for each column:
<code class="language-python">
[column.key for column in myTable.__table__.columns]
</code>
python  sqlalchemy  dba  sql  solution  reference  dammitbrain 
yesterday by kme
Sqlalchemy: Truncate all tables | https://gist.github.com/
In order to get the Table instance, use ModelName.__table__. The '.delete()' method on the Table is the same as a SQL 'TRUNCATE TABLE tablename', except you don't have to do any introspection (or hard-code) the table name.

<code class="language-python">
def truncate_db(engine):
# delete all table data (but keep tables)
# we do cleanup before test 'cause if previous test errored,
# DB can contain dust
meta = MetaData(bind=engine, reflect=True)
con = engine.connect()
trans = con.begin()
con.execute('SET FOREIGN_KEY_CHECKS = 0;')
for table in meta.sorted_tables:
con.execute(table.delete())
con.execute('SET FOREIGN_KEY_CHECKS = 1;')
trans.commit()</code>
sqlalchemy  dba  database  sql  python  solution 
2 days ago by kme
Download Shiny Server - RStudio | https://www.rstudio.com/
<code class="language-bash">
# Size: 46.2 MB
# MD5: 3f8f53d87767cc5949d3b83206c628d0
# Version: 1.5.7.907
# Released: 2018-04-06
$ wget https://download3.rstudio.org/centos6.3/x86_64/shiny-server-1.5.7.907-rh6-x86_64.rpm
$ sudo yum install --nogpgcheck shiny-server-1.5.7.907-rh6-x86_64.rpm</code>
shiny  r  centos  installation  sysadmin  solution 
5 days ago by kme
webdav - How do I enable HTTP-DAV in Apache? - Server Fault | https://serverfault.com/
Yup, I made this mistake, too:
I finally figured it out.

Instead of
<code class="language-apache"><Location /var/www/html/updates>
Dav On
</Location></code>

it needs to be (Directory instead of Location)
<code class="language-apache"><Directory /var/www/html/updates>
Dav On
</Directory></code>
apache  webmaster  configfile  webdav  solution  fuckina 
5 days ago by kme
How to Create a List of Your Installed Programs on Windows
Astonished that this is the first useful use case I've found for PowerShell so far.

<code style="language-powershell">Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate | Format-Table –AutoSize</code>
sysadmin  win7  powershell  installation  maintenance  reporting  commandline  cli  fuckina  solution 
16 days ago by kme
linux - How do I get "top" command to wrap its output? - Unix & Linux Stack Exchange
Just plain 'top -c' usually does what you want (which is to stop truncating the command name).
<code style="language-bash">top -bcn1 -w512</code>

The elegant solution is to use the option -w [number]. According to the man page, the maximum width is 512 characters, so you will need a different solution for anything exceeding that. Presumably you also want to see the full length of the commands, so use the -c option. We need to run top in "batch mode", -b, or it will continue to cut off the commands with a "+". Batch mode kind of makes a mess because it prints out all the jobs every second, so we can use the -n1 option to print out just one instance.
unix  linux  processmanagement  commandline  tui  annoyance  solution 
17 days ago by kme
Remove DEFINER clause from MySQL Dumps - Stack Overflow | https://stackoverflow.com/
Solution for error messages like
ERROR 1449 (HY000) at line 1434: The user specified as a definer ('superman'@'%') does not exist
I don't think there is a way to ignore adding DEFINERs to the dump. But there are ways to remove them after the dump file is created.

- Open the dump file in a text editor and replace all occurrences of DEFINER=root@localhost with an empty string ""

- Edit the dump (or pipe the output) using perl:
<code class="language-bash">perl -p -i.bak -e "s/DEFINER=\`\w.*\`@\`\d[0-3].*[0-3]\`//g" mydatabase.sql</code>

- Pipe the output through sed:
<code class="language-bash">mysqldump ... | sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' > triggers_backup.sql</code>
mysql  sql  dba  annoyance  errormessage  solution 
4 weeks ago by kme
How to set background color in Writer? [closed] - Ask LibreOffice | https://ask.libreoffice.org/
Styles and Formatting (F11) → Page Styles (4th icon from left)
Select "Default" → right click: "Modify..." or "New..."

Sample: New... → Page Style: Background

Page tab → Margins
Set all margins to zero

page tab

Background tab
Select the background color

Borders tab
Line arrangement: Set all four borders
Line → Color: (e.g.:) the same as the background color
Spacing to contents: (e.g.:) 20 mm
☑ Synchronize
libreoffice  formatting  solution 
4 weeks ago by kme
image manipulation - Create drop shadow effects in Imagemagick - Stack Overflow
<code class="language-bash">convert input.jpeg -bordercolor white -border 13 \( +clone -background black -shadow 80x3+2+2 \) +swap -background white -layers merge +repage output.jpg
</code>

As a gist: https://gist.github.com/ernstki/742a2140047e74804572d7e3e95a80d4
imagemagick  dropshadow  imageprocessing  solution  commandline  scripting  fuckina 
5 weeks ago by kme
Add Shadow and Border to Images with ImageMagick | bemoko's blog on mobile
<code class="language-bash">image-shadow () {
out=${1%.*}-shadow.${1#*.}
in=$1
echo "Converted file : $out"
if [ ! -z $2 ] ; then
convert $in -frame $2 $out
in=$out
fi
convert $in \( +clone -background black -shadow 60x5+10+10 \) \
+swap -background white -layers merge +repage $out
}</code>
magemagick  imageprocessing  dropshadow  imagemanipulation  scripting  solution  fuckina 
5 weeks ago by kme
DropShadow App Made With Automator and ImageMagick - Podfeet Podcasts
This is probably easier than trying to do it with Script-Fu, which I gave up on after about two hours in the (Guile) tutorial.
imagemagick  imageprocessing  dropshadow  imagemanipulation  automator  mac  osx  commandline  solution 
5 weeks ago by kme
python - parsing XML file gets UnicodeEncodeError (ElementTree) / ValueError (lxml) - Stack Overflow | https://stackoverflow.com/
You are using the decoded unicode value. Use r.raw raw response data instead:
<code class="language-python">r = requests.get(url, params=payload, stream=True)
r.raw.decode_content = True
etree.parse(r.raw)</code>

which will read the data from the response directly; do note the stream=True option to .get().

Setting the r.raw.decode_content = True flag ensures that the raw socket will give you the decompressed content even if the response is gzip or deflate compressed.

You don't have to stream the response; for smaller XML documents it is fine to use the response.content attribute, which is the un-decoded response body:
<code class="language-python">r = requests.get(url, params=payload)
xml = etree.fromstring(r.content)</code>

XML parsers always expect bytes as input as the XML format itself dictates how the parser is to decode those bytes to Unicode text.
xml  requests  elementtree  lxml  python  webdevel  errormessage  solution 
5 weeks ago by kme
Manual:Timezone - MediaWiki | https://www.mediawiki.org/
<code class="language-php">#Set Default Timezone
$wgLocaltimezone = "Asia/Jakarta";
date_default_timezone_set( $wgLocaltimezone );</code>
mediawiki  configsetting  dateandtime  localtime  timezone  solution 
7 weeks ago by kme
Python import statement semantics - Stack Overflow
<code class="language-python">import lxml.html as LH
doc = LH.parse('http://somesite')
</code>
lxml.html is a module. When you import lxml, the html module is not imported into the lxml namespace. This is a developer's decision. Some packages automatically import some modules, some don't. In this case, you have to do it yourself with import lxml.html.

import lxml.html as LH imports the html module and binds it to the name LH in the current module's namespace. So you can access the parse function with LH.parse.

python  lxml  imports  syntax  annoyance  solution 
7 weeks ago by kme
How To Secure Memcached by Reducing Exposure | DigitalOcean
Modify '/etc/sysconfig/memcached':
<code>
# ...
OPTIONS="-l 127.0.0.1 -U 0"
</code>

Test with:
<code class="language-bash">sudo netstat -plunt</code>
webdevel  sysadmin  memcached  security  hardening  solution 
7 weeks ago by kme
216 Web Safe Colors List - by WebSafeColors.design | https://websafecolors.info/
mutedgreen: rgba(0,255,156,0.3), Hex: #00FF9C
mutedred: rgba(255,51,46,0.3), Hex: #FF332E
mutedturquoise: rgba(20,174,204, 0.3), Hex: #14AECC
mutedcerulean: rgba(61,138,153, 0.3), Hex: #3D8A99
mutedmagenta: rgba(204,20,97,0.3), Hex: #CC1461
mutedmustard: rgba(232,172,12,0.3), Hex: #E8AC0C
webdevel  webdesign  colors  colorscheme  palette  solution 
7 weeks ago by kme
Mailing List Archive: Re: MediaWiki 1.28.0 Extension LDAPAuthentication does not work | https://lists.gt.net/
There is a new permission available that governs the right to create accounts when logging in with an external user account. It's called "autocreateaccount" [0]. You have to add to your config something like:
<code class="language-php">$wgGroupPermissions['*']['autocreateaccount'] = true;</code>

Or maybe this is enough:
<code class="language-php">$wgGroupPermissions['user']['autocreateaccount'] = true;</code>

See also https://www.mediawiki.org/wiki/Topic:T6s2lkqumdyy0zqv
mediawiki  ldap  authentication  config  configfile  solution 
8 weeks ago by kme
"You have made too many recent login attempts" on Project:Support desk | https://www.mediawiki.org/
Just restart your web server (or your php server instance if you're using PHP-FPM), it will reset it.
mediawiki  sysadmin  errormessage  lockout  security  solution 
8 weeks ago by kme
maintenance/update.php - Error: your composer.lock file is not up to date. on Skin talk:Chameleon | https://www.mediawiki.org/
Ran into this issue where 'maintenance/update.php' wouldn't stop griping about 'composer.lock' being out of date.

No amount of 'composer update --no-dev' would make this go away. This turned out to work (allowing the LDAP extension to make necessary schema changes):
Run update.php with parameter --skip-external-dependencies
mediawiki  1.30  errormessage  solution 
8 weeks ago by kme
How to change the remote repository for a git submodule? - Stack Overflow | https://stackoverflow.com/
You should just be able to edit the .gitmodules file to update the URL and then run git submodule sync to reflect that change to the superproject and your working copy.


Also handy (like 'git remote -v', sort of):
<code class="language-bash">git submodule foreach -q git config remote.origin.url</code>
git  scm  versioncontrol  submodule  solution  dammitbrain 
8 weeks ago by kme
jinja string match - Google Groups | https://groups.google.com/
In a test pillar:
<code class="language-jinja">
{% if 'node3' in grains["id"] %}
test: yayaya matches node3
{% else %}
test: nonono
{% endif %}
</code>
flask  jinja  templates  syntax  webdevel  webdesign  solution 
10 weeks ago by kme
javascript - Twitter Bootstrap Tabs: Go to Specific Tab on Page Reload or Hyperlink - Stack Overflow
<code class="language-javascript">// Javascript to enable link to tab
var url = document.location.toString();
if (url.match('#')) {
$('.nav-tabs a[href="#' + url.split('#')[1] + '"]').tab('show');
}

// Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash;
})</code>
bootstrap  webdevel  javascript  solution 
10 weeks ago by kme
python - sqlalchemy IS NOT NULL select - Stack Overflow | https://stackoverflow.com/
Starting in version 0.7.9 you can use the filter operator .isnot instead of comparing constraints, like this:
<code class="language-python">query.filter(User.name.isnot(None))</code>
python  sqlalchemy  flask-admin  sql  orm  solution 
10 weeks ago by kme
python - Flask url_for generating http URL instead of https - Stack Overflow | https://stackoverflow.com/
<code class="language-python">
url_for('secure_thingy',
_external=True,
_scheme='https',
viewarg1=1, ...)
</code>
flask  flask-admin  annoyance  sortof  solution 
10 weeks ago by kme
The Grammarphobia Blog: Far be it from me … | https://www.grammarphobia.com/
A: The correct expression is, as you say, “far be it from me.” The Oxford English Dictionary says the phrase is “a form of deprecation” equal to “God forbid that (I, etc.).”
grammar  solution  english  idiom  colloquialism 
11 weeks ago by kme
Random Renegade Bits > Solved: GIMP Script-Fu Console Image ID | http://rrbits.com/
<code class="language-scheme">(script-fu-round-corners 1 (car (gimp-image-get-active-drawable 1)) 30 1 6 6 20 1 0)</code>
script-fu  gimp  scripting  imageprocessing  howto  solution 
may 2018 by kme
php - Removing X-Powered-By - Stack Overflow | https://stackoverflow.com/

I think that is controlled by the expose_php setting in PHP.ini:
<code class="language-php">expose_php = off</code>

Decides whether PHP may expose the fact that it is installed on the server (e.g. by adding its signature to the Web server header). It is no security threat in any way, but it makes it possible to determine whether you use PHP on your server or not.

There is no direct security risk, but as David C notes, exposing an outdated (and possibly vulnerable) version of PHP may be an invitation for people to try and attack it.
php  webdevel  webmaster  security  configfile  configuration  solution  dammitbrain 
may 2018 by kme
Change Apache httpd "Server:" HTTP header - Unix & Linux Stack Exchange | https://unix.stackexchange.com/
I simply changed the directives in security.conf and Apache started working as I wanted.
<code class="language-apache">
ServerTokens Prod
ServerSignature Off
</code>
webmaster  apache  httpd  config  configfile  security  configuration  solution  dammitbrain 
may 2018 by kme
numpy - Automatically import modules when entering the python or ipython interpreter - Stack Overflow | https://stackoverflow.com/
Use the environment variable PYTHONSTARTUP. From the official documentation:
If this is the name of a readable file, the Python commands in that file are executed before the first prompt is displayed in interactive mode. The file is executed in the same namespace where interactive commands are executed so that objects defined or imported in it can be used without qualification in the interactive session.

python  ipython  ptpython  startup  configfile  solution 
may 2018 by kme
python - Add another tuple to a tuple of tuples - Stack Overflow | https://stackoverflow.com/
I thought that argument unpacking might work here, like 'a = (1,2,3)' and 'b = (0, *a)', but yeah, no it's called "argument" unpacking for a reason, and creating tuples isn't a function call. It might work with namedtuples though!

<code class="language-python"
# build another tuple-of-tuples out of another_choice,
# then concatenate:

final_choices = (another_choice,) + my_choices</code>
python  tuples  lists  concatenation  syntax  newbie  solution 
may 2018 by kme
Currency sign (typography) - Wikipedia | https://en.wikipedia.org/
It is represented in Unicode as U+00A4 ¤ CURRENCY SIGN (HTML &#164; · &curren; · Windows Alt+0164), \textcurrency in LaTeX.
typography  currency  symbols  unicode  solution 
may 2018 by kme
PYTHON IndexError: tuple index out of range - Stack Overflow | https://stackoverflow.com/
In my case, I had two format placeholders, but only one item in my parameter list to '.format()'; what I needed to do was make the "{0}" explicit, then it worked.
python  strings  formatstring  stringformatting  tuples  errormessage  solution 
may 2018 by kme
c# - Converting the date within the places.sqlite file in Firefox to a DateTime - Stack Overflow

Unix timestamps are measured in seconds. These values are larger by a factor of one million, i.e., they are using microseconds:

<code>> select datetime(1373306583389000 / 1000000, 'unixepoch');
2013-07-08 18:03:03</code>
mozilla  filrefox  places.sqlite  history  solution 
may 2018 by kme
Extension:PlaceNewSection - MediaWiki | https://www.mediawiki.org/
You need to add __ADDNEWSECTIONBELOW__ and __NEWSECTIONLINK__ to your article (if it's outside the "Talk" namespace) in order to get this working. But it works!

Other useful references:

* https://phabricator.wikimedia.org/T122884 - (Make it possible to) always ignore NEWSECTIONLINK in mainspace at the English Wikipedia
* https://www.mediawiki.org/wiki/Help:Magic_words
* https://en.wikipedia.org/wiki/MediaWiki:Gadget-addsection-plus[.js]
* https://en.wikipedia.org/wiki/MediaWiki:Gadgets-definition
mediawiki  editing  extension  movein  essential  fuckina  solution 
may 2018 by kme
MySQL Bugs: #19611: missleading error message while using defaults-extra-file parameter | https://bugs.mysql.com/
The options file handling options (like '--defaults-extra-file' and '--defaults-group-suffix') need to come FIRST on the command line.

This isn't really mentioned in the manual (that I noticed), contrary to what this bug report says.
dba  mysql  mysqldump  errormessage  solution 
may 2018 by kme
MySQL :: MySQL 8.0 Reference Manual :: 4.5.4 mysqldump — A Database Backup Program | https://dev.mysql.com/
The "options file handling" options need to come *first* on the command line, otherwise you get an error like what's described in this bug report[1] like "mysql: unknown variable 'defaults-group-suffix=:whatever'"

[1] https://bugs.mysql.com/bug.php?id=19611
dba  sysadmin  mysql  mysqldump  configfile  optionsfile  tipsandtricks  errormessage  solution 
may 2018 by kme
Strange MySQL database that I can't select - Database Administrators Stack Exchange | https://dba.stackexchange.com/
In my case it was 'autojump's fault; the directory was /var/lib/mysql/.local, and the database that couldn't be selected (with 'mysqldump') was called "#mysql50#.local".
dba  mysql  errormessage  solution 
may 2018 by kme
transform hash key from string into symbol - Ruby Forum | https://www.ruby-forum.com/
This was handy, but I found a different way by just iterating over the array and returning another (two-element) array inside a 'map' or a 'each_key' or something, then passing this to the Hash#[] constructor.

<code class="language-ruby">class Hash
def symbolize_keys
replace(inject({}) { |h,(k,v)| h[k.to_sym] = v; h })
end
end</code>
ruby  arrays  hashes  map  fp  idiom  newbie  syntax  solution 
may 2018 by kme
ruby - Difference Between map and each - Stack Overflow | https://stackoverflow.com/

each simply iterates over the given enumerable, running the block for each value. It discards the return value of the block, and each simply returns the original object it was called on:
<code class="language-ruby">[1, 2, 3].each do |i|
i + 1
end # => [1, 2, 3]
</code>

This is simply a nicer, more universal way of doing a traditional iterating for loop, and each is much preferred over for loops in Ruby (in fact, I don't think I've ever used a for loop in Ruby).

map, however, iterates over each element, using the return value of the block to populate a new array at each respective index and return that new array:
<code class="language-ruby">[1, 2, 3].map do |i|
i + 1
end # => [2, 3, 4]</code>

So it "maps" each element to a new one using the block given, hence the name "map". Note that neither each nor map themselves modify the original collection.
ruby  arrays  fp  map  syntax  newbie  reference  solution 
may 2018 by kme
syntax - What do the different brackets in Ruby mean? - Stack Overflow | https://stackoverflow.com/
[] can be overridden as a custom method, and is generally used to fetch things from hashes (the standard library sets up [] as a method on hashes which is the same as fetch)
There is also a convention that it is used as a class method in the same way you might use a static Create method in C# or Java. e.g.
<code class="language-ruby">
a = {1 => 2} # create a hash for example
puts a[1] # same as a.fetch(1), will print 2

Hash[1,2,3,4] # this is a custom class method which creates a new hash</code>
ruby  syntax  brackets  braces  idiom  arrays  hashes  annoyance  solution 
may 2018 by kme
linux - Avoid errors from tar failing to restore directory permissions - Super User | https://superuser.com/
This tar option might be what you're looking for:
<code> --no-overwrite-dir
preserve metadata of existing directories</code>
commandline  shellscripting  sysadmin  tar  errormessage  solution 
may 2018 by kme
shell - Redirecting stdout to a file you don't have write permission on - Unix & Linux Stack Exchange | https://unix.stackexchange.com/
Yes, using tee. So echo test > /tmp/foo becomes
<code class="language-bash">echo test | sudo tee /tmp/foo</code>

You can also append (>>)
<code class="language-bash">echo test | sudo tee -a /tmp/foo</code>
bash  sudo  shellscripting  redirection  dammitbrain  solution 
may 2018 by kme
shell - How do I use redirection with sudo - Unix & Linux Stack Exchange | https://unix.stackexchange.com/
I prefer the solution using 'tee' mentioned at https://unix.stackexchange.com/a/1417.
An alternative way to do this, is to wrap the entire command in another bash command shell:

<code class="language-bash">sudo bash -c "cat .mplayer/config >> /home/griff/.mplayer/config"</code>
bash  sudo  shellscripting  redirection  sortof  solution 
may 2018 by kme
Manual:Short URL/Apache - MediaWiki | https://www.mediawiki.org/
In the Apache config (for the vhost or whatever):
<code class="language-apache">## http://www.mediawiki.org/wiki/Manual:Short_URL/Apache

# Enable the rewrite engine
RewriteEngine On

# Short URL for wiki pages
RewriteRule ^/?wiki(/.*)?$ %{DOCUMENT_ROOT}/w/index.php [L]

# Redirect / to Main Page
RewriteRule ^/*$ %{DOCUMENT_ROOT}/w/index.php [L]
</code>

In 'LocalSettings.php':
<code class="language-php">
## https://www.mediawiki.org/wiki/Manual:Short_URL
$wgScriptPath = "/w"; // this should already have been configured this way
$wgArticlePath = "/wiki/$1";
</code>
mediawiki  essential  movein  shorturl  configfile  webmaster  apache  solution 
may 2018 by kme
centos5 - How do I change my locale to UTF-8 in CentOS? - Server Fault | https://serverfault.com/
In CentOS try with system-config-language command. That's the CentOS way :) Also you can try with:
<code class="language-bash">
localedef -c -f UTF-8 -i de_DE de_DE.UTF-8
export LC_ALL=de_DE.UTF-8</code>
locale  centos  aufdeutsch  language  i18n  solution 
may 2018 by kme
how do I allow mysql connections through selinux - Server Fault | https://serverfault.com/

To check SELinux
<code class="language-bash">sestatus</code>

To see what flags are set on httpd processes
<code class="language-bash">getsebool -a | grep httpd</code>

To allow Apache to connect to remote database through SELinux
<code class="language-bash">setsebool httpd_can_network_connect_db 1</code>

Use -P option makes the change permanent. Without this option, the boolean would be reset to 0 at reboot.
<code class="language-bash">
setsebool -P httpd_can_network_connect_db 1
</code>

See also https://codedump.io/share/HBJCXpCN1VLr/1/permission-denied-when-trying-to-connect-to-mysql-installing-mediawiki, because I got that exact error message:

<code>
/var/www/html/Wiki/includes/limit.sh: line 61: ulimit: cpu time: cannot modify limit: Permission denied

/var/www/html/Wiki/includes/limit.sh: line 90: ulimit: file size: cannot modify limit: Permission denied</code>

If you want to create a policy file that allows whatever was failing to not fail, try this:

<code class="language-bash">grep httpd /var/log/audit/audit.log | audit2allow -M mypol
semodule -i mypol.pp</code>
selinux  centos  apache  httpd  mysql  security  sysadmin  webmaster  solution  errormessage 
may 2018 by kme
vagrantfile - Print message after booting vagrant machine with "vagrant up" - Stack Overflow | https://stackoverflow.com/
Vagrant now has builtin support for a message to appear after vagrant up. Just add this to your Vagrantfile:

<code class="language-ruby">config.vm.post_up_message = "This is the start up message!"</code>

And then after your VM has come up you'll see this message in green:

<code>==> default: Machine 'default' has a post `vagrant up` message. This is a message
==> default: from the creator of the Vagrantfile, and not from Vagrant itself:
==> default:
==> default: This is the start up message!</code>
vagrant  vagrantfile  provisioning  configfile  solution 
may 2018 by kme
ruby - Secure Password Generation With Random Chars - Stack Overflow | https://stackoverflow.com/
You can use SecureRandom (docs):
<code class="language-ruby">
require 'securerandom'

password = SecureRandom.base64(15)
# => "vkVuWvPUWSMcZf9nn/dO"
</code>
ruby  passwordgenerator  password  solution 
may 2018 by kme
Wirble: Tab-Completion and Syntax Coloring for irb | http://www.rubyinside.com/
If you haven't got tab-completion and syntax coloring in your irb, you owe it to yourself to follow these instructions right away (should work for Linux, OS X, and Cygwin users). First, install the Wirble gem:
<code class="language-bash">sudo gem install -y wirble</code>

Next, create or edit a file called .irbrc in your home folder (~/.irbrc), and make sure these lines are included there:
<code class="language-ruby">require 'rubygems'
require 'wirble'
Wirble.init
Wirble.colorize</code>
ruby  repl  irb  syntaxhighlighting  fuckina  solution 
may 2018 by kme
MySQL :: MySQL 5.5 Reference Manual :: 2.11.1 Upgrading MySQL | https://dev.mysql.com/
<code class="language-bash">
mysqldump -u root -p \
--add-drop-table --routines --events \
--all-databases --force > data-for-upgrade.sql

# then
# (possibly /usr/libexec/mysqld, if there's no mysqld_safe script)
mysqld_safe --user=mysql --datadir=/path/to/5.5-datadir

# then
mysql -u root -p --force < data-for-upgrade.sql

# finally
mysql_upgrade -u root -p
</code>
mysql  migration  centos  sysadmin  dba  reference  solution 
may 2018 by kme
python numpy machine epsilon - Stack Overflow | https://stackoverflow.com/

An easier way to get the machine epsilon for a given float type is to use np.finfo():

<code class="language-python">print(np.finfo(float).eps)
# 2.22044604925e-16

print(np.finfo(np.float32).eps)
# 1.19209e-07</code>


Also interesting, but I wonder why this works:

Another easy way to get epsilon is:
<code class="language-python">
In [1]: 7./3 - 4./3 -1
Out[1]: 2.220446049250313e-16
</code>
python  float  floatingpoint  math  solution 
may 2018 by kme
Emmet | https://www.jetbrains.com/
This is present in PyCharm, too. The completion happens with <Tab>.
emmet  snippets  expansion  ide  pycharm  ideas  solution 
april 2018 by kme
python click help formatting newline - Stack Overflow | https://stackoverflow.com/

Your newlines are not being preserved because the epilog writer does word wrapping. This can be solved with a subclass to click.Group, by creating a format_epilog() which does not do word wrapping:
<code class="language-python">class SpecialEpilog(click.Group):
def format_epilog(self, ctx, formatter):
if self.epilog:
formatter.write_paragraph()
for line in self.epilog.split('\n'):
formatter.write_text(line)

# Tell click to use our epilog formatter
@click.group(cls=SpecialEpilog,
help='wwwwwwwwww', epilog=EPILOG, invoke_without_command=True, chain=True)
....
</code>
python  click  flask  solution 
april 2018 by kme
Dynamic dispatch from a string (Python) - Software Engineering Stack Exchange | https://softwareengineering.stackexchange.com/
It depends. If classes are in the same module, globals()[class_name] will do the trick. The question is rather how to do it less hackish... – Roman Susi Jun 22 '17 at 8:10
python  dynamicdispatch  solution  lemmi 
april 2018 by kme
"sneaky suspicion" v "sneaking suspicion" - Google Groups | https://groups.google.com/
A "sneaking suspicion" is one that you arrive at in tiny increments...a "sneaky suspicion", if there is such a thing, is suspecting that someone is being sneaky....r
english  idiom  solution 
april 2018 by kme
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