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How Pony (ORM) does its tricks?
...n
this case you can make it work by passing the generator expression as a string.
When you pass a generator as a string Pony doesn't use the decompiler module. Instead
it gets the AST using the standard Python compiler.parse function.
Hope this answers your question.
...
Design by contract using assertions or exceptions? [closed]
...ulates a URL and is either Null or a valid URL. It is the conversion of a string into a URL that enforces the contract, and an exception is thrown if it is invalid. A method with a URL parameter is much clearer that a method with a String parameter and an assertion that specifies a URL.
...
Is is possible to check if an object is already attached to a data context in Entity Framework?
...ly:
public static void AttachToOrGet<T>(this ObjectContext context, string entitySetName, ref T entity)
where T : IEntityWithKey
{
ObjectStateEntry entry;
// Track whether we need to perform an attach
bool attach = false;
if (
context.ObjectStateManager.TryGetObjec...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
... ...
<key>JVMVersion</key>
<string>!1.8.0</string> <!-- changed from '1.8.0' to '!1.8.0' -->`
and then it magically disappears from the top of the list:
/usr/libexec/java_home -verbose
Matching Java Virtual Machines (3):
1.7.0_45...
REST API Authentication
...every HTTP request, eg: Authorization: Basic Ym9ic2Vzc2lvbjE6czNjcmV0
The string Ym9ic2Vzc2lvbjE6czNjcmV0 above is just the string "bobsession1:s3cret" (which is a username/password) encoded in Base64.
To obtain the temporary session token above, provide an API function (eg: http://mycompany.com/ap...
Detecting an undefined object property
...ial for a silent failure if you make a typo in the variable name or in the string literal 'undefined'.
var snapshot = …;
if (typeof snaposhot === 'undefined') {
// ^
// misspelled¹ – this will never run, but it won’t throw an error!
}
var foo = …;
if (typeof foo === 'und...
Debug.Assert vs Exception Throwing
...Batch extension)
// 'public facing' method
public int DoSomething(List<string> stuff, object doohickey, int limit) {
// validate user input and report problems externally with exceptions
if(stuff == null) throw new ArgumentNullException("stuff");
if(doohickey == null) throw new ...
How do I view all commits for a specific day?
...ience!
The output below can be expanded/customised with pretty=format:<string> placeholders:
git log --pretty='format:%H %an %ae %ai' | grep 2013-11-12
Not 100% immune to errors as the same string could have been entered by a user. But acceptable depending on which placeholders are used. T...
How to get a complete list of object's methods and attributes?
...>> dir__(pyrenderdoc) Traceback (most recent call last): File "<string>", line 1, in <module> NameError: name '__dir' is not defined
– Mona Jalal
Dec 30 '16 at 1:28
...
Booleans, conditional operators and autoboxing
...Value, it will throw NPE of course.
public static void main(java.lang.String[]) throws java.lang.Exception;
descriptor: ([Ljava/lang/String;)V
flags: ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=2, args_size=1
0: invokestatic #2 // Method r...