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In Python, how does one catch warnings as if they were exceptions?
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This does not answer the OP's question, which was about handling wanrings, not testing them. However, the answer by niekas below does show how to handle warnings.
– Biggsy
Jan 24 at 10:42
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Linux: copy and create destination dir if it does not exist
...(or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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Immutable vs Mutable types
...t? Floats are immutable? But can't I do
x = 5.0
x += 7.0
print x # 12.0
Doesn't that "mut" x?
Well you agree strings are immutable right? But you can do the same thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it changes by changing what the variable refers...
PG undefinedtable error relation users does not exist
...the schema see
Schema Dumping and You section. Rails Docs
If the trick doesn't help, drop the database, then re-create it again, migrate data, and if you have seeds, sow the database:
rake db:drop db:create db:migrate db:seed
or in short way (since 3.2):
rake db:migrate:reset db:seed
Since...
What does %~dp0 mean, and how does it work?
I find %~dp0 very useful, and I use it a lot to make my batch files more portable.
7 Answers
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Do subclasses inherit private fields?
...lass's private fields. As he states, having no access to a private member doesn't mean its not there.
However. This is different than the notion of inheritance for a class. As is the case in the java world, where there is a question of semantics the arbiter is the Java Language Specification (cu...
Make child visible outside an overflow:hidden parent
...n use the clearfix to do "layout preserving" the same way overflow: hidden does.
.clearfix:before,
.clearfix:after {
content: ".";
display: block;
height: 0;
overflow: hidden;
}
.clearfix:after { clear: both; }
.clearfix { zoom: 1; } /* IE < 8 */
add class="clearfi...
In PHP what does it mean by a function being binary-safe?
In PHP what does it mean by a function being binary-safe ?
3 Answers
3
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Does C# have an equivalent to JavaScript's encodeURIComponent()?
... In contrast to encodeURIComponent(), Uri.EscapeUriString() doesn't encode "+" to "%2b". Use Uri.EscapeDataString() instead.
– jwaliszko
Apr 30 '12 at 10:17
4
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How to step back in Eclipse debugger?
...g on the sort of method you're in.
Another really cool tool that actually does let you step back and forward in time is the Omniscient Debugger. It works by instrumenting classes as they're loaded in the classloader, so it can record everything that your code does. It can do very cool things, lik...