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How to uninstall editable packages with pip (installed with -e)
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At {virtualenv}/lib/python2.7/site-packages/ (if not using virtualenv then {system_dir}/lib/python2.7/dist-packages/)
remove the egg file (e.g. distribute-0.6.34-py2.7.egg) if there is any
from file easy-install.pth, remove the corresponding l...
How to have multiple CSS transitions on an element?
... answered Jun 15 '12 at 22:17
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How to delete an item in a list if it exists?
...ed, EAFP style:
This shoot-first-ask-questions-last attitude is common in Python. Instead of testing in advance if the object is suitable, just carry out the operation and catch relevant Exceptions:
try:
some_list.remove(thing)
except ValueError:
pass # or scream: thing not in some_list!
e...
Can I exclude some concrete urls from inside ?
...nored as an init-param of the filter so that you can control it in the web.xml anyway. You can get it in the filter as follows:
private String pathToBeIgnored;
public void init(FilterConfig config) {
pathToBeIgnored = config.getInitParameter("pathToBeIgnored");
}
If the filter is part of 3rd p...
String comparison in Python: is vs. == [duplicate]
I noticed a Python script I was writing was acting squirrelly, and traced it to an infinite loop, where the loop condition was while line is not '' . Running through it in the debugger, it turned out that line was in fact '' . When I changed it to !='' rather than is not '' , it worked fine.
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Don't understand why UnboundLocalError occurs (closure) [duplicate]
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Python doesn't have variable declarations, so it has to figure out the scope of variables itself. It does so by a simple rule: If there is an assignment to a variable inside a function, that variable is considered local.[1]...
Python: Continuing to next iteration in outer loop
...there are any built-in ways to continue to next iteration in outer loop in python. For example, consider the code:
8 Answ...
Where in a virtualenv does the custom code go?
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virtualenv provides a python interpreter instance, not an application instance. You wouldn't normally create your application files within the directories containing a system's default Python, likewise there's no requirement to locate your applic...
How to convert a dictionary to query string in Python?
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Python 3
urllib.parse.urlencode(query, doseq=False, [...])
Convert a mapping object or a sequence of two-element tuples, which may contain str or bytes objects, to a percent-encoded ASCII text string.
— Pytho...
Is there something like RStudio for Python? [closed]
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IPython Notebooks are awesome. Here's another, newer browser-based tool I've recently discovered: Rodeo. My impression is that it seems to better support an RStudio-like workflow.
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