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Negation in Python
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Safely limiting Ansible playbooks to a single machine?
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This approach will exit if more than a single host is provided by checking the play_hosts variable. The fail module is used to exit if the single host condition is not met. The examples below use a hosts file with two hosts alice and bob.
user.yml (playbook)
---
- hosts: all
tasks:
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Difference between objectForKey and valueForKey?
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I'm surprised no one has corrected this answer by pointing out valueForKey: technically does not give you access to the corresponding instance variable, but rather the accessor method that (could) manage the instance variable.
– Dany Joumaa
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How to override the [] operator in Python?
...red Dec 24 '09 at 10:43
Dave KirbyDave Kirby
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Undoing a git bisect mistake
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What does inverse_of do? What SQL does it generate?
... original dungeon object instead of loading a new one as would be the case by default.
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dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
... Swift Code") in the Build Settings that needs to be set to YES. It was NO by default!
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Fragment onCreateView and onActivityCreated called twice
...mClass = clz;
mFragment=mActivity.getFragmentManager().findFragmentByTag(mTag);
}
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName());
ft.replace(android.R...
How do you deal with configuration files in source control?
...to main,php. I add the main.php file to the ignore list to avoid commit it by accident.
– levhita
Sep 15 '08 at 18:10
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What's wrong with this 1988 C code?
...s of code and notice they never seem to be there. Or, the OP could mess up by including them, ask about the "bizarre" error, and find out: oops, no semicolons required for preprocessor directives! This is programming, not an episode of Scared Straight.
– user7116
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