I need help to convert the list representation (string) of elliptic curve pairing group element back to an object. Explanation: I am using charm crypto v0.43 to use CPABE scheme in my web application. I need to store the pairing element that is generated into my database. When I did that, it is storing it as …
Count consecutive characters
How would I count consecutive characters in Python to see the number of times each unique digit repeats before the next unique digit? At first, I thought I could do something like: So that in this manner I could see the number of times each unique digit repeats. But this, of course, falls out of range when i …
Implementing CSS in Django
I’m trying to implement a simple CSS file to my python web app. When I try loding the app, I get a error message in the command prompt that says: And of course no CSS is implemented to the HTML page. The structure of my Project is: In my settings.py, I got: And in the html I got the link
How to mock imported library methods with unittest.mock in Python 3.5?
Is it possible to mock methods of imported modules with unittest.mock in Python 3.5? I expected that the the os.listdir method returns the specified side_effect “a” on the first call, but inside of my_function the unpatched os.listdir is called. Answer unittest.mock have two main duties: Define Mo…
pandas to_sql all columns as nvarchar
I have a pandas dataframe that is dynamically created with columns names that vary. I’m trying to push them to sql, but don’t want them to go to mssqlserver as the default datatype “text” (can anyone explain why this is the default? Wouldn’t it make sense to use a more common dat…
npm – “Can’t find Python executable “python”, you can set the PYTHON env variable.”
I’m trying to run the following command: npm install -g bower gulp cordova ionic tsd@next karma-cli protractor node-gyp coffee-script js-beautify typescript npm-check I have installed Python, Visual Studio Express and node-gyp so thought I’d be good to go, however I get the following errors: Regar…
Windows Desktop GUI Automation using Python – Sleep vs tight loop
I am using PyAutoGUI library of Python to automate GUI. The application which I am automating opens a new window after I am done with data entry on my current window. Everything is taken care by python automation (data entry in my current window and the click required to open the window). When the click is pe…
Copy image to clipboard?
First of all, the question on SO copy image to clipboard in python leads to answer Write image to Windows clipboard in python with PIL and win32clipboard?, which was only good for Python 2.x. — I tried it and it didn’t work. I overcame one problem: StringIO and cStringIO modules are gone in Python…
Python Scatter Plot with Multiple Y values for each X
I am trying to use Python to create a scatter plot that contains two X categories “cat1” “cat2” and each category has multiple Y values. I can get this to work if the number of Y values for each X value is the same by using this following code: but as soon as the number of Y values for…
How can auto create uuid column with django
I’m using django to create database tables for mysql,and I want it can create a column which type is uuid,I hope it can generate the uuid by itself,that means each time insert a record,I needn’t specify a uuid for the model object.How can I make it,thanks! Answer If you’re using Django >=…