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How to use a custom comparison function in Python 3?
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What if I need both a key function AND a cmp function? I want to sort a list of dictionaries by a custom key in each dictionary. sorted_rows = sorted(rows, key=itemgetter('name'), cmp=locale.strxfrm) gives TypeError: 'cmp' is an i...
Bootstrap Dropdown menu is not working
...tdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
and see if it will work.
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Hibernate: Automatically creating/updating the db tables based on entity classes
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I don't know if leaving hibernate off the front makes a difference.
The reference suggests it should be hibernate.hbm2ddl.auto
A value of create will create your tables at sessionFactory creation, and leave them intact.
A value of crea...
emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
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There is no difference:
(eq 'my-add #'my-add)
yields t
The # can be used in front of a lambda expression indicating to the byte-compiler that the following expression can be byte compiled, see the docs for Anonymous Functions. But th...
HorizontalAlignment=Stretch, MaxWidth, and Left aligned at the same time?
... but only to a maximum width. The problem is that I want it to be left justified within its parent. To get it to stretch you have to use HorizontalAlignment="Stretch", but then the result is centered. I've experimented with HorizontalContentAlignment, but it doesn't seem to do anything.
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Telling gcc directly to link a library statically
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God if only Gnu had made this the default in the first place instead of the lib prefix madness. Oh the time and frustration we would have saved.
– Timmmm
Mar 6 '15 at 10:39
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What is the single most influential book every programmer should read? [closed]
If you could go back in time and tell yourself to read a specific book at the beginning of your career as a developer, which book would it be?
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How can I change Eclipse theme?
...ark theme for Eclipse.
See the article by Lars Vogel in "Eclipse 4 is beautiful – Create your own Eclipse 4 theme":
If you want to play with it, you only need to write a plug-in, create a CSS file and use the org.eclipse.e4.ui.css.swt.theme extension point to point to your file.
If you exp...
DataTrigger where value is NOT null?
I know that I can make a setter that checks to see if a value is NULL and do something. Example:
12 Answers
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Overriding id on create in ActiveRecord
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worked for me. saved my life. used on rails 4.0.0 / postgres 9.3.5
– allenwlee
Nov 10 '14 at 15:44
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