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How can I tell PyCharm what type a parameter is expected to be?
...t need a docstring. As an added benefit, those annotations can be accessed by code:
>>> King.repress.__annotations__
{'peasant': <class '__main__.Person'>, 'return': <class 'bool'>}
Update: As of PEP 484, which has been accepted for Python 3.5, it is also the official convent...
HTTP status code 0 - Error Domain=NSURLErrorDomain?
...
There is no HTTP status code 0. What you see is a 0 returned by the API/library that you are using. You will have to check the documentation for that.
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What exactly are late static bindings in PHP?
...identically named members since you can then decide which ones to refer to by using static:: instead.
– DanMan
Mar 13 '18 at 12:54
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How to use git with gnome-keyring integration
...ep credential- and see if you have other helpers installed. Ones that come by default are credential-cache (remember password for some time after you enter it, 15 minutes by default), and credential-store (just store the password in plaintext on an unencrypted file on disk, ~/.git-credentials by def...
External VS2013 build error “error MSB4019: The imported project was not found”
...h a space and not a comma. The config that you suggested to remove is used by other parts of visual studio in your build proces...
– Ralph Jansen
Mar 21 '14 at 10:48
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What does Class mean in Java?
...able class, hence you can use the syntax Class<T> where T is a type. By writing Class<?>, you're declaring a Class object which can be of any type (? is a wildcard). The Class type is a type that contains meta-information about a class.
It's always good practice to refer to a generic t...
How can I efficiently select a Standard Library container in C++11?
... recognizable.
Question 1: Associative ?
If you need to easily search by one key, then you need an associative container
If you need to have the elements sorted, then you need an ordered associative container
Otherwise, jump to the question 2.
Question 1.1: Ordered ?
If you do not need a sp...
When to use self over $this?
...>bar();
?>
Here is an example of suppressing polymorphic behaviour by using self for member functions:
<?php
class X {
function foo() {
echo 'X::foo()';
}
function bar() {
self::foo();
}
}
class Y extends X {
function foo() {
echo 'Y::foo()';...
Is there a way of having git show lines added, lines changed and lines removed?
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The output of git diff --numstat is broken down by file. To see the total added/removed for the diff, you can pipe it to awk: git diff --numstat | awk '{ added += $1; removed += $2 } END { print "+" added " -" removed }'
– hughes
Dec ...
Abstract class in Java
... class is a class which cannot be instantiated. An abstract class is used by creating an inheriting subclass that can be instantiated. An abstract class does a few things for the inheriting subclass:
Define methods which can be used by the inheriting subclass.
Define abstract methods which the i...