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Difference between left join and right join in SQL Server [duplicate]
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Shards and replicas in Elasticsearch
...ontain your data:
____ ____ ____ ____ ____
| 1 | | 2 | | 3 | | 4 | | 5 |
|____| |____| |____| |____| |____|
Every time you index a document, elasticsearch will decide which primary shard is supposed to hold that document and will index it there. Primary shards are not a ...
What exactly does += do in python?
...r
return self.num
>>> a = Adder(2)
>>> a += 3
in __iadd__ 3
>>> a
5
Hope this helps.
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Is it possible to make abstract classes in Python?
...ct using one of three ways, depending upon your Python version.
In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMeta. Specifying the metaclass has different syntax in Python 3 and Python 2. The three possibilities ar...
How do I get the full path of the current file's directory?
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1763
Python 3
For the directory of the script being run:
import pathlib
pathlib.Path(__file__).pare...
Why do some functions have underscores “__” before and after the function name?
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539
From the Python PEP 8 -- Style Guide for Python Code:
Descriptive: Naming Styles
The f...
Is module __file__ attribute absolute or relative?
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Ioannis Filippidis
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answered Aug 19 '11 at 4:23
agfagf
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How do I create a namespace package in Python?
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TL;DR:
On Python 3.3 you don't have to do anything, just don't put any __init__.py in your namespace package directories and it will just work. On pre-3.3, choose the pkgutil.extend_path() solution over the pkg_resources.declare_namespace() o...
Iterate over object attributes in python
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237
Assuming you have a class such as
>>> class Cls(object):
... foo = 1
... bar ...
How to mock an import
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138
You can assign to sys.modules['B'] before importing A to get what you want:
test.py:
import s...