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Why are Python's 'private' methods not actually private?
Python gives us the ability to create 'private' methods and variables within a class by prepending double underscores to the name, like this: __myPrivateMethod() . How, then, can one explain this
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Using @property versus getters and setters
... prevent you from actually getting or setting that attribute. Therefore, standard attribute access is the normal, Pythonic way of, well, accessing attributes.
The advantage of properties is that they are syntactically identical to attribute access, so you can change from one to another without any ...
How to convert JSON data into a Python object
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UPDATE
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import json
from types import SimpleNamespace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.lo...
In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
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__autoreleasing to denote arguments that are passed by reference (id *) and are autoreleased on return.
All of this is very well explained in the ARC transition guide.
In your NSError example, the declaration means __strong, implicitly:
NSError * e = nil;
Will be transformed to:
NSError * ...
(Mac) -bash: __git_ps1: command not found
I'm trying to change my command promt in terminal. I keep getting the error:
19 Answers
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Getting list of parameter names inside python function [duplicate]
Is there an easy way to be inside a python function and get a list of the parameter names?
4 Answers
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How do I add custom field to Python log format string?
...'Super App'}
logger = logging.getLogger(__name__)
syslog = logging.StreamHandler()
formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s')
syslog.setFormatter(formatter)
logger.setLevel(logging.INFO)
logger.addHandler(syslog)
logger = logging.LoggerAdapter(logger, extra)
logger.inf...
capturing self strongly in this block is likely to lead to a retain cycle
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__weak MyClass *self_ = self; // that's enough
self.loadingDidFinishHandler = ^(NSArray *receivedItems, NSError *error){
if (!error) {
[self_ showAlertWithError:error];
} else {
self_.items = [NSArray arrayWithArray:receivedItems];
[self_.tableView reloadData];
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Is it possible to implement a Python for range loop without an iterator variable?
...range(10): pass
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>>> _
9
>>> 1+2
3
>>> _
9
And according to Python grammar, it is an acceptable variable name:
identifier ::= (letter|"_") (letter | digit | "_")*
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Is there a difference between “==” and “is”?
...> b == a
True
# Make a new copy of list `a` via the slice operator,
# and assign it to variable `b`
>>> b = a[:]
>>> b is a
False
>>> b == a
True
In your case, the second test only works because Python caches small integer objects, which is an implementation detail...