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How are Python's Built In Dictionaries Implemented?
...dom probing. In random probing, the next slot is picked in a pseudo random order. The entry is added to the first empty slot. For this discussion, the actual algorithm used to pick the next slot is not really important (see dictobject.c:33-126 for the algorithm for probing). What is important is tha...
Ansible: Set variable to file content
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You can use lookups in Ansible in order to get the contents of a file, e.g.
user_data: "{{ lookup('file', user_data_file) }}"
Caveat: This lookup will work with local files, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
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Better way to revert to a previous SVN revision of a file?
... to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was
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How do I prevent the padding property from changing width or height in CSS?
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Add property:
-webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
-moz-box-sizing: border-box; /* Firefox, other Gecko */
box-sizing: border-box; /* Opera/IE 8+ */
Note: This won't work in Internet Explorer below version 8.
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Is MD5 still good enough to uniquely identify files?
...the hash are the same : you can only compare byte-for-byte. A hash is many orders of magnitude smaller than the number of different values for the whole file, so there are many, many, many possible collisions for each hash values. Only if you are in the case of copying a known file (with a known has...
In Python, how do I determine if an object is iterable?
...wn objects iterable, always implement the __iter__ method.
for loops
In order to follow along, you need an understanding of what happens when you employ a for loop in Python. Feel free to skip right to the next section if you already know.
When you use for item in o for some iterable object o, P...
Visual List of iOS Fonts?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Difference between LoadFile and LoadFrom with .NET Assemblies?
...d context, you
would have to subscribe to the
AssemblyResolve event in order to bind
to them.
See here.
Also see Choosing a Binding Context article on the same blog.
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Which characters are illegal within a branch name?
...to use the dollar sign $ character.
git branch pew$ign will create pew. In order to create a branch that has $ within it the whole name should be wrapped in quotes: git branch 'pewSign'. Ideally you should avoid to use the symbol whatsoever.
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backbone.js - events, knowing what was clicked
...d use ev.currentTarget as described on http://www.quirksmode.org/js/events_order.html
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