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Google Authenticator available as a public service?
...ou can use my solution, posted as the answer to my question (there is full Python code and explanation):
Google Authenticator implementation in Python
It is rather easy to implement it in PHP or Perl, I think. If you have any problems with this, please let me know.
I have also posted my code ...
Is it better to return null or empty collection?
...ollection is passed, or no table at all, if null is passed.
in a Object-to-XML (JSON/whatever), where null would mean the element is missing, while an empty collection would render a redundant (and possibly incorrect) <collection />
you are using or implementing an API which explicitly states ...
Principal component analysis in Python
...
Months later, here's a small class PCA, and a picture:
#!/usr/bin/env python
""" a small class for Principal Component Analysis
Usage:
p = PCA( A, fraction=0.90 )
In:
A: an array of e.g. 1000 observations x 20 variables, 1000 rows x 20 columns
fraction: use principal components that...
How to deep copy a list?
...ist.
deepcopy(x, memo=None, _nil=[])
Deep copy operation on arbitrary Python objects.
See the following snippet -
>>> a = [[1, 2, 3], [4, 5, 6]]
>>> b = list(a)
>>> a
[[1, 2, 3], [4, 5, 6]]
>>> b
[[1, 2, 3], [4, 5, 6]]
>>> a[0][1] = 10
>>&g...
Securely storing environment variables in GAE with app.yaml
...yer enabling you to discover and create secrets at runtime, if necessary.
Python SDK
Example usage:
from google.cloud import secretmanager_v1beta1 as secretmanager
secret_id = 'my_secret_key'
project_id = 'my_project'
version = 1 # use the management tools to determine version at runtime
cli...
Gradients in Internet Explorer 9
...et($_GET['to']) ? $_GET['to'] : '000000';
header('Content-type: image/svg+xml; charset=utf-8');
echo '<?xml version="1.0"?>
';
?>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100%" height="100%">
<defs>
<linearGradient id="linear-gradient" x1="0...
How does collections.defaultdict work?
I've read the examples in python docs, but still can't figure out what this method means. Can somebody help? Here are two examples from the python docs
...
How can I compare two lists in python and return matches
I want to take two lists and find the values that appear in both.
19 Answers
19
...
How to access parameters in a RESTful POST method
...ng JSON objects (see the jersey docs for details). Create a class like:
@XmlRootElement
public class MyJaxBean {
@XmlElement public String param1;
@XmlElement public String param2;
}
Then your @POST method would look like the following:
@POST @Consumes("application/json")
@Path("/create...
What is pip's equivalent of `npm install package --save-dev`?
...ject with an existing requirements.txt, installing all requirements (I use Python3.7 but you can remove the --three if you do not) is as simple as:
pipenv --three install
Activating the virtualenv to run commands is also easy
pipenv shell
Installing requirements will automatically update the P...