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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...ssion.
Note that we can merge in with literal notation as well:
z = {**x, 'foo': 1, 'bar': 2, **y}
and now:
>>> z
{'a': 1, 'b': 3, 'foo': 1, 'bar': 2, 'c': 4}
It is now showing as implemented in the release schedule for 3.5, PEP 478, and it has now made its way into What's New in Python 3...
Linq to SQL how to do “where [column] in (list of values)”
...
Use
where list.Contains(item.Property)
Or in your case:
var foo = from codeData in channel.AsQueryable<CodeData>()
where codeIDs.Contains(codeData.CodeId)
select codeData;
But you might as well do that in dot notation:
var foo = channel.AsQueryable<Code...
How to determine when a Git branch was created?
...
Use
git show --summary `git merge-base foo master`
If you’d rather see it in context using gitk, then use
gitk --all --select-commit=`git merge-base foo master`
(where foo is the name of the branch you are looking for.)
...
Difference between __getattr__ vs __getattribute__
...ample based on Ned Batchelder's explanation.
__getattr__ example:
class Foo(object):
def __getattr__(self, attr):
print "looking up", attr
value = 42
self.__dict__[attr] = value
return value
f = Foo()
print f.x
#output >>> looking up x 42
f.x = 3
pr...
UnboundLocalError on local variable when reassigned after first use
...
The best example that makes it clear is:
bar = 42
def foo():
print bar
if False:
bar = 0
when calling foo() , this also raises UnboundLocalError although we will never reach to line bar=0, so logically local variable should never be created.
The mystery lies i...
WiX tricks and tips
...ant it to appear in Add/Remove Programs-->
<?define ProductName = "Foo 64 Bit [Live]" ?>
<?else ?>
<?define ProductName = "Foo [Live]" ?>
<?endif ?>
<!-- Directory name used as default installation location -->
<?define InstallName = "Foo [Live]" ?>
<...
String strip() for JavaScript? [duplicate]
...ri 5.x), although IE 8 and older do not support it. Usage is simple:
" foo\n\t ".trim() => "foo"
See also:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim
http://msdn.microsoft.com/en-us/library/windows/apps/ff679971%28v=vs.94%29.aspx
...
Linking to other Wiki pages on GitHub? [closed]
... whether Markdown or MediaWiki syntax. For example, ``` [[Description of foo|Foo]] ``` will render the (code-formatted) source markup, not the intended link. If anyone knows a way around this, please let me know.
– Jeff Dickey
Mar 2 '19 at 6:19
...
Why does an NSInteger variable have to be cast to long when used as a format argument?
...nd all the casts and choosing the right string format specifier.
NSNumber foo = @9000;
NSLog(@"foo: %@", foo);
NSInteger bar = 9001;
NSLog(@"bar: %@", @(bar));
It also works for NSUIntegers without having to worry about that.
See answer to NSInteger and NSUInteger in a mixed 64bit / 32bit enviro...
Comparing two collections for equality irrespective of the order of items in them
...collections for equality.
/// </summary>
/// <param name="foo">The first collection.</param>
/// <param name="bar">The second collection.</param>
/// <returns>True if both collections have the same content, false otherwise.</returns>
publ...