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Converting an object to a string
... but there are still quite a few IE7 users out there (depends on your user base).
– MikeMurko
Nov 21 '11 at 14:35
31
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How to convert std::string to lower case?
... the Σ<->ς conversion at the end of the word. No <algorithm>-based solution can give you that.
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StringBuilder vs String concatenation in toString() in Java
...tes that this is optional. In fact, I just did a simple test with JRE 1.6.0_15 and I didn't see any compiler optimization in the decompiled class.
– bruno conde
Oct 7 '09 at 16:07
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
Some guy called one of my Snipplr submissions "crap" because I used if ($_SERVER['REQUEST_METHOD'] == 'POST') instead of if ($_POST)
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How to pretty-print a numpy.array without scientific notation and with given precision?
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You can use set_printoptions to set the precision of the output:
import numpy as np
x=np.random.random(10)
print(x)
# [ 0.07837821 0.48002108 0.41274116 0.82993414 0.77610352 0.1023732
# 0.51303098 0.4617183 0.33487207 0.7116209...
Get a filtered list of files in a directory
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Keep it simple:
import os
relevant_path = "[path to folder]"
included_extensions = ['jpg','jpeg', 'bmp', 'png', 'gif']
file_names = [fn for fn in os.listdir(relevant_path)
if any(fn.endswith(ext) for ext in included_extensions)]
I prefer this ...
Getting list of parameter names inside python function [duplicate]
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>>> func = lambda x, y: (x, y)
>>>
>>> func.__code__.co_argcount
2
>>> func.__code__.co_varnames
('x', 'y')
>>>
>>> def func2(x,y=3):
... print(func2.__code__.co_varnames)
... pass # Other things
...
>>> func2(3,3)
('x', 'y')
>...
How to import the class within the same directory or sub directory?
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Python 2
Make an empty file called __init__.py in the same directory as the files. That will signify to Python that it's "ok to import from this directory".
Then just do...
from user import User
from dir import Dir
The same holds true if the files are in a...
Count number of records returned by group by
...rGroup,
COUNT(*) OVER () AS TotalRecords
from temptable
group by column_1, column_2, column_3, column_4
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List all indexes on ElasticSearch server?
...ise list of all indices in your cluster, call
curl http://localhost:9200/_aliases
this will give you a list of indices and their aliases.
If you want it pretty-printed, add pretty=true:
curl http://localhost:9200/_aliases?pretty=true
The result will look something like this, if your indices ...