ntprop 0.2.0

A way to create transparent NetworkTables variables

NTProp

A simple mechanism for using Network Tables entries as semi-transparent member variables

Installation

Using your Python package manager of choice, just install the ntprop package from PyPI.

pip install ntprop

Usage

To start using these, you just need to import NTPropertyHost from ntprop and have your class inherit from it. From there, any member varaible that is of the types NumberProperty, BooleanProperty, or StringProperty (also from ntprop) will act like a simple, strictly-typed member variable that transparently updates and is updated by the relevant NT entry.

Example

from ntprop import NTPropertyHost, NumberProperty

class Foo(NTPropertyHost):
    # for purposes of type-checking here, we could just call this a float, since there's no difference in 
    # usage at runtime. This is only valid if the owning class is an NTPropertyHost.
    bar: NumberProperty

    def __init__(self):
        self.bar = NumberProperty("ntbar", default=1, readonly=False) #defaults are 0.0 and False, respectively

    def do_something(self):
        # += may work?
        self.bar = self.bar + 1 
        print(self.bar)

It's also possible to use an NTProperty without it being a member of ah NTPropertyHost. To do that, you just need to use the get and set methods of the type. NOTE: These methods are not available in NTPropertyHosts since that type already does the necessary calls to get and set behind the scenes and resolves them prior to returning a value.