def find_providers(self, reqt):
        matcher = self.get_matcher(reqt)
        name = matcher.key   # case-insensitive
        result = set()
        provided = self.provided
        if name in provided:
            for version, provider in provided[name]:
                try:
                    match = matcher.match(version)
                except UnsupportedVersionError:
                    match = False

                if match:
                    result.add(provider)
                    break
        return result
Set order of bits to be read/written over serial lines.  Should be
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/site-packages/pip/_vendor/distlib/locators.py/DependencyFinder.find_providers--crossover with--dataset/ETHPy150Open adafruit/Adafruit_Python_GPIO/Adafruit_GPIO/SPI.py/SpiDev.set_bit_order