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Tag: python

Why are Python’s arrays slow?

I expected array.array to be faster than lists, as arrays seem to be unboxed. However, I get the following result: What could be the cause of such a difference? Answer The storage is “unboxed”, but every time you access an element Python has to “box” it (embed it in a regular Python ob…

dataframe to long format

I have the following df: I would like to change it so that looks like this: The reason is that I have a df that is similarly shaped and I need to merge the two dfs. I have recently had similar df shaping issues that I have been unable to find simple quick solutions to with python. Does anyone know

Python Convert any number to power of 10 (E-notation)

In my program big numbers is shown off and for this reason I want any number to be converted to power of 10 (E-notation). I tried an idea that came to my mind but I get an error that says: How I succeed that I want? Answer In Python floats are usually double-precision IEEE-754 floating point numbers; it has 1…

How to Get all post data from a request in Django?

Is there any way get all the form names from a request in Django ? Html request in the above I can get only from the name I know, what I need is to get all names of the django request and later parse it and get data. Answer Try use this: But if you need print a dynamic POST

How can I get an oauth2 access_token using Python

For a project someone gave me this data that I have used in Postman for testing purposes: In Postman this works perfectly. Auth URL: https://api.example.com/oauth/access_token Access Token URL: https://api.example.com/access_token client ID: abcde client secret: 12345 Token name: access_token Grant type: Clie…

Communicating via Bluetooth serial with Python

How do you process and receive serial data via Bluetooth and Python? I’m trying to make a simple Python server that access data via Bluetooth as explained here. My server.py file, which sends a random number when sent the text “temp”, is: When I first ran this, I was getting the error: which…

How to use compile_commands.json with clang python bindings?

I have the following script that attempts to print out all the AST nodes in a given C++ file. This works fine when using it on a simple file with trivial includes (header file in the same directory, etc). However, I get a clang.cindex.TranslationUnitLoadError: Error parsing translation unit. when I run the sc…