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Can anyone explain python's relative imports?
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You are importing from package "sub". start.py is not itself in a package even if there is a __init__.py present.
You would need to start your program from one directory over parent.py:
./start.py
./pkg/__init__.py
./pkg/parent.py
./pkg/sub...
Making heatmap from pandas DataFrame
I have a dataframe generated from Python's Pandas package. How can I generate heatmap using DataFrame from pandas package.
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Can I access constants in settings.py from templates in Django?
I have some stuff in settings.py that I'd like to be able to access from a template, but I can't figure out how to do it. I already tried
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Why are these numbers not equal?
...E(all.equal(0.1+0.1, 0.15))
#[1] FALSE
Some more detail, directly copied from an answer to a similar question:
The problem you have encountered is that floating point cannot represent decimal fractions exactly in most cases, which means you will frequently find that exact matches fail.
while R ...
Difference between break and continue statement
...reak
You can label a block, not only a for-loop, and then break/continue from a nested block to an outer one. In few cases this might be useful, but in general you'll try to avoid such code, except the logic of the program is much better to understand than in the following example:
first:
for (in...
Creating email templates with Django
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From the docs, to send HTML e-mail you want to use alternative content-types, like this:
from django.core.mail import EmailMultiAlternatives
subject, from_email, to = 'hello', 'from@example.com', 'to@example.com'
text_conte...
Why does Python print unicode characters when the default encoding is ASCII?
From the Python 2.6 shell:
6 Answers
6
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How can I get the named parameters from a URL using Flask?
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Use request.args to get parsed contents of query string:
from flask import request
@app.route(...)
def login():
username = request.args.get('username')
password = request.args.get('password')
shar...
Read and write a String from text file
I need to read and write data to/from a text file, but I haven't been able to figure out how.
21 Answers
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Why doesn't indexOf work on an array IE8?
... (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(elt /*, from*/)
{
var len = this.length >>> 0;
var from = Number(arguments[1]) || 0;
from = (from < 0)
? Math.ceil(from)
: Math.floor(from);
if (from < 0)
from += len;
fo...