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How do you create nested dict in Python?
...innerkey'] = 'value'
>>> d
{'dict1': {'innerkey': 'value'}}
You can also use a defaultdict from the collections package to facilitate creating nested dictionaries.
>>> import collections
>>> d = collections.defaultdict(dict)
>>> d['dict1']['innerkey'] = 'value'...
How do I limit the number of results returned from grep?
...rdless of
the presence of trailing context lines. This enables a calling
process to resume a search.
Note: grep stops reading the file once the specified number of matches have been found!
share
...
Are static class instances unique to a request or a server in ASP.NET?
...ses and static instance fields are shared between all requests to the application, and has the same lifetime as the application domain. Therefore, you should be careful when using static instances, since you might have synchronization issues and the like. Also bear in mind, that static instances wi...
Setting Short Value Java
...Now when I try to write setTableId(100) it gives compile time error. How can I set the short value without declaring another short variable?
...
Unignore subdirectories of ignored directories in Git
...
Even if you add something to .gitignore, you can force git to add it to the index
git add --force uploads/rubbish/stuff/KEEP_ME/
However, "KEEP_ME" seems to be a directory and git usually doesnt like empty folder, so you should can add a "placeholder"-holder file ins...
Difference between class and type
...constant), an interface, a primitive, or an array.
There are two distinct categories of types: primitive types and reference types:
A variable of primitive type always holds a primitive value of that same type. Such a value can only be changed by assignment operations on that variable.
A variable...
Is is possible to check if an object is already attached to a data context in Entity Framework?
...}
if (attach)
context.AttachTo(entitySetName, entity);
}
You can call it as follows:
User user = new User() { Id = 1 };
II.AttachToOrGet<Users>("Users", ref user);
This works very nicely because it's just like context.AttachTo(...) except you can use the ID trick I cited above...
typedef fixed length array
...e to define a 24-bit data type.I am using char[3] to represent the type. Can I typedef char[3] to type24 ? I tried it in a code sample. I put typedef char[3] type24; in my header file. The compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C file...
NHibernate ISession Flush: Where and when to use it, and why?
...
Briefly:
Always use transactions
Don't use Close(), instead wrap your calls on an ISession inside a using statement or manage the lifecycle of your ISession somewhere else.
From the documentation:
From time to time the ISession will execute the SQL statements needed to synchronize the ADO.NET...
How to provide different Android app icons for different gradle buildTypes?
...
Figured it out. What you need to do is create a separate src folder called debug that holds the different icons. For example, if your project layout is as follows, and your launcher icon is called ic_launcher.png:
[Project Root]
-[Module]
-src
-main
-res
-drawab...