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How to round a number to significant figures in Python
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round_sig(-0.0232) -> math domain error, you may want to add an abs() in there ;)
– dgorissen
Dec 19 '11 at 14:18
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Python (and Python C API): __new__ versus __init__
...re creating. I can't actually change it into an int as you did... I get an error about heap types or something... but my example of assigning it to a dynamically created class works.
– ArtOfWarfare
Jan 21 '16 at 18:52
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Proper way to declare custom exceptions in modern Python?
...dit: to override something (or pass extra args), do this:
class ValidationError(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
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scp with port number specified
...capitalized.
– None
Sep 6 '15 at 17:05
1
@Abdull: there's an answer at askubuntu.com/a/307078/375...
addEventListener vs onclick
...onevent property back to its initial state (i.e. null).
Doesn't respond to errors appropriately. For example, if you by mistake assign a string to window.onload, for example: window.onload = "test";, it won't throw any errors. Your code wouldn't work and it would be really hard to find out why. .add...
Using HTML in Express instead of Jade
...The callback fn(err) is invoked when the
transfer is complete or when an error occurs.
Warning
res.sendFile provides client-side cache through http cache headers but it does not cache file contents on server-side. The code above will hit the disk on each request.
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How do I parallelize a simple Python loop?
...erhead) or capturing of the traceback of the child process, to have better error reporting.
Disclaimer: I am the original author of joblib.
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Difference between len() and .__len__()?
...t recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object cannot be interpreted as an integer
When you see a call to the len built-in, you're sure that, if the program continues after that rather than raising an exception, the call has returned an integer, non-...
The command rbenv install is missing
...all ruby 2.0.0-p247 using
$ rbenv install 2.0.0-p247
but I received the error message
rbenv: no such command 'install'
All I had to do was to run
$ exec $SHELL -l
and that fixed the problem.
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Android Writing Logs to text File
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org.apache.log4j.Logger log= Log4jHelper.getLogger( "YourActivity" );
log.error("Error");
log.info("Info");
log.warn("Warn");
Example Source. Note that, log4j 2.x ( improved functionalities ) rewritten from scratch is not backward comptible with log4j 1.x. So you have to use log4j 1.2.x jar with...