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Shared-memory objects in multiprocessing
... some other parameters). func with different parameters can be run in parallel. For example:
4 Answers
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Python String and Integer concatenation [duplicate]
...i)
What you did (range[1,10]) is
a TypeError since brackets denote an index (a[3]) or a slice (a[3:5]) of a list,
a SyntaxError since [1,10] is invalid, and
a double off-by-one error since range(1,10) is [1, 2, 3, 4, 5, 6, 7, 8, 9], and you seem to want [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
An...
When is assembly faster than C?
...hat although that's not entirely false, the cases where assembler can actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembly.
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How to avoid .pyc files?
... I just tried this and, it does work for imported modules. Specifically, once this variable is set anything imported later won't generate pyc files. This is delightful. Thanks.
– user234736
Nov 22 '12 at 19:59
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Reload django object from database
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Not sure what "All non-deferred fields are updated "mentioned in the docs means?
– Yunti
Nov 13 '15 at 18:15
1
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add column to mysql table if it does not exist
...
OK this is really crude but someone's got to say it. if you are simply running a SQL script from the command line, you can give mysql the --force switch, which means keep going even if there's an error. then, just go for it. you just want...
Rails: call another controller action from a controller
...methods in your controller and call them from your action.
Example:
def index
get_variable
end
private
def get_variable
@var = Var.all
end
That said you can do exactly the same through different controllers and summon a method from controller A while you are in controller B.
Vocabu...
What is the proper way to re-attach detached objects in Hibernate?
...e to the DB,
and overwrite any intervening updates.
refresh() cannot be called on a detached entity.
lock() cannot be called on a detached entity,
and even if it could, and it did reattach the entity,
calling 'lock' with argument 'LockMode.NONE'
implying that you are locking, but not locking,
i...
Why do people still use primitive types in Java?
...lways resolve to calling the latter, so you could not remove an element by index.
On the other hand, there is a pitfall when trying to add and remove an int:
final int i = 42;
final List<Integer> list = new ArrayList<Integer>();
list.add(i); // add(Object)
list.remove(i); // remove(int...
Python string class like StringBuilder in C#?
...
There is no one-to-one correlation. For a really good article please see Efficient String Concatenation in Python:
Building long strings in the Python
progamming language can sometimes
result in very slow running code. In
this article I investigate the
comp...