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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...huge SQL query.
I saw elasticsearch recently and played with whoosh (a Python implementation of a search engine).
9 Ans...
Easy way to pull latest of all git submodules
...Update 2:
If you are on a windows platform, you may want to look at using Python to implement the script as it is very capable in these areas. If you are on unix/linux, then I suggest just a bash script.
Need any clarifications? Just post a comment.
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Send message to specific client with socket.io and node.js
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I am Python/PHP programmer and I am new to sockets and node, question is, why do we need to increment seq number of same user each second? is that just for demo?
– Umair Ayub
Sep 11 '18 at 10...
Is there a reason for C#'s reuse of the variable in a foreach?
...en moment in time (creation of a closure). This discusses similar stuff in Python and Scheme (cut for refs/vars and cute for keeping evaluated values in partially-evaluated closures).
– Will Ness
Jan 18 '12 at 18:09
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Replace None with NaN in pandas dataframe
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You can use DataFrame.fillna or Series.fillna which will replace the Python object None, not the string 'None'.
import pandas as pd
import numpy as np
For dataframe:
df = df.fillna(value=np.nan)
For column or series:
df.mycol.fillna(value=np.nan, inplace=True)
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How do I create a directory from within Emacs?
...t create nonexistent parent directories.
Example:
C-x d *.py RET ; shows python source files in the CWD in `Dired` mode
+ test RET ; create `test` directory in the CWD
CWD stands for Current Working Directory.
or just create a new file with non-existing parent directories using C-x C-f and t...
How to round the minute of a datetime object
...verflow.com/questions/3463930/how-to-round-the-minute-of-a-datetime-object-python
"""
round_to = date_delta.total_seconds()
if dt is None:
dt = datetime.now()
seconds = (dt - dt.min).seconds
if seconds % round_to == 0 and dt.microsecond == 0:
rounding = (seconds ...
Generator Expressions vs. List Comprehension
...u use generator expressions and when should you use list comprehensions in Python?
9 Answers
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What is the difference between buffer and cache memory in Linux?
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I have tested this using a simple python program that writes large amounts of blocks. What happens is that the cache gets filled up as reported by free -w -h, not the buffers column. I think the cache column counts both disk writes and disk reads and buffers ...
How to change the playing speed of videos in HTML5?
... Hi @Armel, may I know where to put this code if I am using Selenium with Python?
– balandongiv
Apr 19 at 11:31
Hi @b...