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How to get the host name of the current machine as defined in the Ansible hosts file?
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You can limit the scope of a playbook by changing the hosts header in its plays without relying on your special host label ‘local’ in your inventory. Localhost does not need a special line in inventories.
- name: run on all except local
hosts: all:!local
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Accessing a class's constants
...the constant outside of the class, prefix it with the class name, followed by two colons
Foo::MY_CONSTANT #=> hello
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Good way of getting the user's location in Android
...private Location getBestLocation() {
Location gpslocation = getLocationByProvider(LocationManager.GPS_PROVIDER);
Location networkLocation =
getLocationByProvider(LocationManager.NETWORK_PROVIDER);
// if we have only one location available, the choice is easy
if (gpslocati...
How to do relative imports in Python?
...the question.
The problem is that you're running the module as '__main__' by passing the mod1.py as an argument to the interpreter.
From PEP 328:
Relative imports use a module's __name__ attribute to determine that module's position in the package hierarchy. If the module's name does not conta...
Best way to detect that HTML5 is not supported
...f checking for the existence of getContext, also used in a similar fashion by the Modernizr library:
var canvasSupported = !!document.createElement("canvas").getContext;
Checking the existence of the HTMLCanvasElement interface, as defined by the WebIDL and HTML specifications. This approach w...
writing some characters like '
... follow Moss guide: How can I write character & in android strings.xml by used Unicode definition:
Example:
<string name="item_unknown">\u003c Item Unknown \u003e</string>
which present in string :
< Item Unknown >
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Difference between window.location.assign() and window.location.replace()
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location.assign():
To assign route path by passing path into it. Assign will give you a history even after path was assigned.
Usage Method: Value should be passed into it.
Eg: location.assign("http://google.com")
location.replace():
It helps to replace path...
AttributeError: 'datetime' module has no attribute 'strptime'
...elf.date = datetime.datetime.strptime(self.d, "%Y-%m-%d")
As mentioned by Jon Clements in the comments, some people do from datetime import datetime, which would bind the datetime name to the datetime class, and make your initial code work.
To identify which case you're facing (in the future), ...
How to automatically install Ansible Galaxy roles?
...xplicitly installing a list of dependencies that have been manually listed by the human who made the playbook.
– Neil
Apr 8 at 21:31
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Deleting folders in python recursively
...led removals will be ignored; if false or omitted, such errors are handled by calling a handler specified by onerror or, if that is omitted, they raise an exception."
– microo8
Oct 29 '12 at 8:36
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