NetsBlox-python
NetsBlox is a block-based programming environment which has a focus on distributed computing and internet connectivity. One of the core features of NetsBlox are remote procedure calls (RPCs), which connect to the NetsBlox server and provide access to online resources such as databases, GoogleMaps, online translation, wireless robotics, mobile phone sensors/control, and more.
NetsBlox-python is an interface for accessing all NetsBlox services from within python. You can import this package in any python program that has internet access and begin calling RPCs and sending/receiving messages!
For more information about NetsBlox and the available services, see the official NetsBlox Documentation.
Example Usage
Here's a short example to see how you can access the MaunaLoaCO2Data service from python.
import netsblox
nb = netsblox.Client() # create a client to access NetsBlox
data = nb.mauna_loa_co2_data.get_co2_trend(2000, 2010)
print(data)
Turtle IDE
NetsBlox-python, while useful on its own for accessing NetsBlox services, has a side goal of helping transition students from block-based languages like NetsBlox and Snap! into textual languages like python.
Because of this, NetsBlox-python comes with a custom wrapper for the popular turtle environment, as well as an IDE for creating python projects in a way that is still structured like a NetsBlox/Snap! project in both appearnance and concurrency model (closest approximation).
These features are only activated when explicitly called, leaving the default behavior as a normal python package for accessing NetsBlox services.
To launch the IDE, you can simply run the NetsBlox-python pypi package as a module:
python -m netsblox
Installation
NetsBlox-python is available as a pip package called netsblox (keep in mind that NetsBlox-python is a python3 package, so you may need to use pip3 if your pip still points to the python2 version).
pip install netsblox
This will pull all of the core python dependencies for using NetsBlox services, but some additional setup is needed for the turtle environment and IDE to work.
Windows
No additional install dependencies
Mac
brew install python-tk
Linux
sudo apt install python3-pil python3-pil.imagetk
sudo apt install idle3
Structured Data
Due to the limited type primitives in Snap!, one NetsBlox typing convention is "structured data", which is really just a list of lists (pairs) denoting (unique string) keys and values.
In the python interface, this is replaced by dict for both input and return value.
The python interface will automatically convert input dict values into lists of lists, and convert lists of lists return values into dict (where appropriate).
Naming Conventions
The python names for services, functions, and input parameters are identical to those in the official NetsBlox documentation, except that they are converted into snake case to by more pythonic. Of course, any modern editor will have some form of intellisense built in, so in practice this is a non-issue.
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