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Batch Renaming of Files in a Directory
...name(r'c:\temp\xx', r'*.doc', r'new(%s)')
The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension).
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Difference between DOM parentNode and parentElement
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parentElement is new to Firefox 9 and to DOM4, but it has been present in all other major browsers for ages.
In most cases, it is the same as parentNode. The only difference comes when a node's parentNode is not an element. If so, parentElement is null.
As an example:
document.body.parentNode; /...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...e objects don't have time zone info by default, and without it, Python actually violates the ISO 8601 specification (if no time zone info is given, assumed to be local time). You can use the pytz package to get some default time zones, or directly subclass tzinfo yourself:
from datetime import date...
Extract digits from a string in Java
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You can use regex and delete non-digits.
str = str.replaceAll("\\D+","");
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How to autosize a textarea using Prototype?
...nal sales application for the company I work for, and I've got a form that allows the user to change the delivery address.
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How do you round a float to two decimal places in jruby
...ing for that is discussed here, it's mostly about readability. Not that we all have to follow the style guide, just giving some reasons :)
– Lucy Bain
Sep 4 '14 at 1:10
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How to properly assert that an exception gets raised in pytest?
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pytest.raises(Exception) is what you need.
Code
import pytest
def test_passes():
with pytest.raises(Exception) as e_info:
x = 1 / 0
def test_passes_without_info():
with pytest.raises(Exception):
x = 1 / 0
def test_fails():
with pytest.raises(Exception) as e_info:
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JavaScript window resize event
...ay do some work to ensure that the resize event gets fired consistently in all browsers, but I'm not sure if any of the browsers differ, but I'd encourage you to test in Firefox, Safari, and IE.
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Benchmarking (python vs. c++ using BLAS) and (numpy)
...e python for my program, what could I do to increase the performance when calling BLAS or LAPACK routines?
Make sure that numpy uses optimized version of BLAS/LAPACK libraries on your system.
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git index.lock File exists when I try to commit, but cannot delete the file
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I see that sometimes the lock file gets deleted automatically. Any clue why this file need to be deleted manually sometimes ?
– Nrj
Jan 6 '15 at 10:28
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