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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...) is for creating dictionaries for readability purposes, e.g.:
dict(a=1, b=10, c=11)
instead of
{'a': 1, 'b': 10, 'c': 11}
Response to comments
Despite what Guido says, dict(x, **y) is in line with the dict specification, which btw. works for both Python 2 and 3. The fact that this only works for...
TypeScript function overloading
...rloading based on number of parameters, but the steps to be followed are a bit different if we compare to OO languages. In answer to another SO question, someone explained it with a nice example: Method overloading?.
Basically, what we are doing is, we are creating just one function and a number of...
How to declare strings in C [duplicate]
...9
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What is the difference between Normalize.css and Reset CSS?
...t you want from each. I like a full reset, but Normalizer offers some nice bits and pieces that work well ontop.
– Undistraction
Dec 2 '12 at 21:05
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Is there a difference between copy initialization and direct initialization?
...t set up one implicit conversion sequence.
I tried hard and got the following code to output different text for each of those forms, without using the "obvious" through explicit constructors.
#include <iostream>
struct B;
struct A {
operator B();
};
struct B {
B() { }
B(A const&...
MongoDB: How to update multiple documents with a single command?
...m not sure about when this change happened but, Mongodb v2.2.2 does this a bit differently. db.collection.update( <query>, <update>, <options> ) where options is a set of key value pairs. See documentation: docs.mongodb.org/manual/applications/update
– Techple...
Servlet for serving static content
...
I came up with a slightly different solution. It's a bit hack-ish, but here is the mapping:
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<servlet-mapping>
&l...
What are bitwise operators?
...into it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
9 Answers
...
Installing pip packages to $HOME folder
...packages/.
Note, that the above is true for Python 2.6. There has been a bit of controversy among the Python core developers about what is the appropriate directory location on Mac OS X for PEP370-style user installations. In Python 2.7 and 3.2, the location on Mac OS X was changed from $HOME/.lo...
What is the best way to concatenate two vectors?
...y, "i
< v1.size()"), VecProxy access time, although constant, is also
a bit slower than that of vectors.
This approach can be generalized to n vectors. I haven't tried, but
it shouldn't be a big deal.
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