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Comparator.reversed() does not compile using lambda
I have a list with some User objects and i'm trying to sort the list, but only works using method reference, with lambda expression the compiler gives an error:
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How to assert output with nosetest/unittest in python?
... into a single function, so I don't have to re-write any try-finally code, and I don't have to write setup and teardown functions just for this.
import sys
from contextlib import contextmanager
from StringIO import StringIO
@contextmanager
def captured_output():
new_out, new_err = StringIO(), ...
Why does z-index not work?
So if I understand z-index correctly, it would be perfect in this situation:
4 Answers
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Argparse: Required argument 'y' if 'x' is present
...ts of options.
The simplest way to deal with this would be:
if args.prox and (args.lport is None or args.rport is None):
parser.error("--prox requires --lport and --rport.")
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Compare if two variables reference the same object in python
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That’s what is is for: x is y returns True if x and y are the same object.
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How do I exchange keys with values in a dictionary?
I receive a dictionary as input, and would like to to return a dictionary whose keys will be the input's values and whose value will be the corresponding input keys. Values are unique.
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Is well formed without a ?
... processing, some controls have their name paired with their current value and these pairs are submitted with the form. Those controls for which name/value pairs are submitted are called successful controls. w3c
– SantiBailors
Nov 12 '15 at 10:08
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How to send objects in NIB files to front/back?
...elect the window object, then click on 'Window' above the interface editor and select the objects it contains
This pic shows where to click:
Or you can expand the object browser, use the disclosure triangle on the window object, and select from the list there: http://i.imgur.com/041xz.png
If the...
What is the tilde (~) in the enum definition?
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~ is the unary one's complement operator -- it flips the bits of its operand.
~0 = 0xFFFFFFFF = -1
in two's complement arithmetic, ~x == -x-1
the ~ operator can be found in pretty much any language that borrowed syntax from C, including Objective-C/C++/C#/Java/Javascript.
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Get the current language in device
How can we get the current language selected in the Android device?
25 Answers
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