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Circular dependency in Spring
...ry#doGetBean
catch (BeansException ex) {
// Explicitly remove instance from singleton cache: It might have been put there
// eagerly by the creation process, to allow for circular reference resolution.
// Also remove any beans that received a temporary reference to the bean.
destroySing...
Python mysqldb: Library not loaded: libmysqlclient.18.dylib
...stem Integrity Protection (SIP, also known as "rootless") will prevent you from creating links in /usr/lib/.
You could disable SIP by following these instructions, but you can create a link in /usr/local/lib/ instead:
sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/local/lib/libmysqlc...
Find the similarity metric between two strings
...
There is a built in.
from difflib import SequenceMatcher
def similar(a, b):
return SequenceMatcher(None, a, b).ratio()
Using it:
>>> similar("Apple","Appel")
0.8
>>> similar("Apple","Mango")
0.0
...
How expensive is the lock statement?
...e it takes to fetch/decode the instruction); and loading a single variable from (non-cached) memory into a register takes about 40ns. So 50ns is insanely, blindingly fast - you shouldn't worry about the cost of using lock any more than you'd worry about the cost of using a variable.
...
Static Indexers?
...d be Encoding["Foo"]. I don't think it would come up very often, but aside from anything else it just feels a little inconsistent not to be available.
I would have to check, but I suspect it's available in IL (Intermediate Language) already.
...
Recreating a Dictionary from an IEnumerable
...%3a%2f%2fstackoverflow.com%2fquestions%2f2636603%2frecreating-a-dictionary-from-an-ienumerablekeyvaluepair%23new-answer', 'question_page');
}
);
Post as a guest
...
Can I target all tags with a single selector?
...
For those landing here from google, and wondering what a comma-separated list means in CSS, it's the first example OP gave. That is, h1, h2, h3 {}.
– bluesmonk
May 29 '19 at 17:47
...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...an it was in 2013, when this question was asked. Avoid drawing conclusions from out-of-date information.
PyPy, as others have been quick to mention, has tenuous support for C extensions. It has support, but typically at slower-than-Python speeds and it's iffy at best. Hence a lot of modules sim...
AttributeError: 'datetime' module has no attribute 'strptime'
... the strptime method. Or, you could change the import statement to this:
from datetime import datetime
and access it as you are.
The people who made the datetime module also named their class datetime:
#module class method
datetime.datetime.strptime(date, "%Y-%m-%d")
...
Node.js project naming conventions for files & folders
...underscores is for internal node packages, and this is simply a convention from the early days.
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