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What is the purpose of the word 'self'?
What is the purpose of the self word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this:
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Read first N lines of a file in python
...cified size.
I am experienced in .net c#, however would like to do this in python to simplify things and out of interest.
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What is the most efficient way of finding all the factors of a number in Python?
...e explain to me an efficient way of finding all the factors of a number in Python (2.7)?
22 Answers
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String slugification in Python
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There is a python package named python-slugify, which does a pretty good job of slugifying:
pip install python-slugify
Works like this:
from slugify import slugify
txt = "This is a test ---"
r = slugify(txt)
self.assertEquals(r, "this...
Django Server Error: port is already in use
... 0 0 127.0.0.1:8000 0.0.0.0:* LISTEN 6599/python
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN -
tcp 0 0 192.168.124.1:53 0.0.0.0:* LISTEN -
tcp ...
How to convert Linux cron jobs to “the Amazon way”?
For better or worse, we have migrated our whole LAMP web application from dedicated machines to the cloud (Amazon EC2 machines). It's going great so far but the way we do crons is sub-optimal. I have a Amazon-specific question about how to best manage cron jobs in the cloud using "the Amazon way...
Convert Python dict into a dataframe
I have a Python dictionary like the following:
15 Answers
15
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Decode HTML entities in Python string?
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Python 3.4+
Use html.unescape():
import html
print(html.unescape('£682m'))
FYI html.parser.HTMLParser.unescape is deprecated, and was supposed to be removed in 3.5, although it was left in by mistake. It will be...
How to efficiently compare two unordered lists (not sets) in Python?
...e efficient method and clearly I drew a blank. After extensive testing in python 3 with the timeit module, sorted consistently comes out faster on lists of integers. On lists of, 1k items, about 1.5% slower and on short lists, 10 items, 7.5% slower. Thoughts?
– arctelix
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append new row to old csv file python
...new row to my old csv file. Basically, it gets updated each time I run the Python script.
7 Answers
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