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UILabel sizeToFit doesn't work with autolayout ios6
...s = [NSLayoutConstraint constraintsWithVisualFormat:@"|-8-[descriptionLabel_]-8-|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(descriptionLabel_)];
[self addConstraints:constrs];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-8-[descriptionLabel_]" options:...
Scala @ operator
...n itself? That would be accomplished with this:
o match {
case x @ Some(_) => println(x)
case None =>
}
Note that @ can be used at any level, not just at the top level of the matching.
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New self vs. new static
...the first method, whereas static is bound to the called class (also see get_called_class()).
class A {
public static function get_self() {
return new self();
}
public static function get_static() {
return new static();
}
}
class B extends A {}
echo get_class(B::ge...
Programmatically stop execution of python script? [duplicate]
.... From Python's docs:
>>> import sys
>>> print sys.exit.__doc__
exit([status])
Exit the interpreter by raising SystemExit(status).
If the status is omitted or None, it defaults to zero (i.e., success).
If the status is numeric, it will be used as the system exit status.
If it is ...
Sorting dictionary keys in python [duplicate]
...
my_list = sorted(dict.items(), key=lambda x: x[1])
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Syntax error on print with Python 3 [duplicate]
...rror. To avoid this, it is a good practice to import print function:
from __future__ import print_function
Now your code works on both 2.x & 3.x.
Check out below examples also to get familiar with print() function.
Old: print "The answer is", 2*2
New: print("The answer is", 2*2)
Old: print...
How should I organize Python source code? [closed]
...everywhere to keep track of everything
After making sure that the relevant __init__.py files are in the folders. its just a simple case of from module import class
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Colon (:) in Python list index [duplicate]
... Does not work with dictionaries. applying d[:5] is the eqivalent of d.__getitem__(slice(0, 5, None)). A slice is not hashable.
– Steve Zelaznik
Jul 4 '15 at 2:31
7
...
Python - Count elements in list [duplicate]
...:
>>> l = ['a','b','c']
>>> len(l)
3
>>> l.__len__()
3
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Compile (but do not run) a Python script [duplicate]
...
py_compile — Compile Python source files
import py_compile
py_compile.compile('my_script.py')
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