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What is the official “preferred” way to install pip and virtualenv systemwide?
...install the latest Python (2.7.9 and up) Pip is now bundled with it.
See: https://docs.python.org/2.7//installing/index.html
If not :
Update (from the release notes):
Beginning with v1.5.1, pip does not require setuptools prior to running get-pip.py. Additionally, if setuptools (or distribute) ...
JS - get image width and height from the base64 code
....naturalHeight had the best results.
const img = new Image();
img.src = 'https://via.placeholder.com/350x150';
img.onload = function() {
const imgWidth = img.naturalWidth;
const imgHeight = img.naturalHeight;
console.log('imgWidth: ', imgWidth);
console.log('imgHeight: ', imgHeight);
};
...
How to have Emacs auto-refresh all buffers when files have changed on disk?
...ate buffers whose files have changed on disk with this change alone. From https://www.gnu.org/software/emacs/manual/html_node/emacs/Reverting.html:
By default, Auto-Revert mode works using file notifications, whereby changes in the filesystem are reported to Emacs by the OS. You can disable use...
AngularJS validation with no enclosing
...;
<link rel="stylesheet" href="style.css" />
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.5/angular.min.js"> </script>
</head>
<body ng-controller="MainCtrl">
<div class="help-block error" ng-show="test.field.$error.required">Re...
Stretch child div height to fill parent that has dynamic height
...
https://www.youtube.com/watch?v=jV8B24rSN5o
I think you can use display as grid:
.parent { display: grid };
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impr...
How do you delete an ActiveRecord object?
...on condition
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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...
Prevent line-break of span element
...
With Bootstrap 4 Class:
text-nowrap
Ref: https://getbootstrap.com/docs/4.0/utilities/text/#text-wrapping-and-overflow
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WPF: How to display an image at its original size?
...d 96dpi.
@rishad2m8 If size is unknown one can detect the size first with https://msdn.microsoft.com/en-us/library/system.drawing.image.size(v=vs.110).aspx I'd guess.
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...
Putty: Getting Server refused our key Error
...ed: bad ownership or modes for directory
Googled and I found this post:
https://www.daveperrett.com/articles/2010/09/14/ssh-authentication-refused/
chmod g-w /home/your_user
chmod 700 /home/your_user/.ssh
chmod 600 /home/your_user/.ssh/authorized_keys
Basically, it tells me to:
get rid of ...
Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
...Google will block your sign-in attempt but
You can change your settings at https://www.google.com/settings/security/lesssecureapps so that your account is no longer protected by modern security standards.
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