mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
92 lines
3.1 KiB
Python
Executable File
92 lines
3.1 KiB
Python
Executable File
"""
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A utility for querying Raspberry Pi GPIO pin-out information.
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"""
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from __future__ import (
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unicode_literals,
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absolute_import,
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print_function,
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division,
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)
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import argparse
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import sys
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import textwrap
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import warnings
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class PinoutTool(object):
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def __init__(self):
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self.parser = argparse.ArgumentParser(
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description=__doc__
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)
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self.parser.add_argument(
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'-r', '--revision',
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dest='revision',
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default='',
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help='RPi revision. Default is to autodetect revision of current device'
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)
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self.parser.add_argument(
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'-c', '--color',
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action="store_true",
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default=None,
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help='Force colored output (by default, the output will include ANSI'
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'color codes if run in a color-capable terminal). See also --monochrome'
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)
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self.parser.add_argument(
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'-m', '--monochrome',
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dest='color',
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action='store_false',
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help='Force monochrome output. See also --color'
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)
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def __call__(self, args=None):
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if args is None:
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args = sys.argv[1:]
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try:
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return self.main(self.parser.parse_args(args)) or 0
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except argparse.ArgumentError as e:
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# argparse errors are already nicely formatted, print to stderr and
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# exit with code 2
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raise e
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except Exception as e:
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raise
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# Output anything else nicely formatted on stderr and exit code 1
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self.parser.exit(1, '{prog}: error: {message}\n'.format(
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prog=self.parser.prog, message=e))
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def main(self, args):
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warnings.simplefilter('ignore')
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try:
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from gpiozero import pi_info
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except ImportError:
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formatter = self.parser._get_formatter()
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formatter.add_text(
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"Unable to initialize GPIO Zero. This usually means that you "
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"are not running %(prog)s on a Raspberry Pi. If you still wish "
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"to run %(prog)s, set the GPIOZERO_PIN_FACTORY environment "
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"variable to 'mock' and retry, or refer to the Remote GPIO "
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"section of the manual* to configure your environment to "
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"remotely access your Pi."
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)
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formatter.add_text(
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"* https://gpiozero.readthedocs.io/en/latest/remote_gpio.html"
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)
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sys.stderr.write(formatter.format_help())
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else:
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if args.revision == '':
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try:
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pi_info().pprint(color=args.color)
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except IOError:
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raise IOError('This device is not a Raspberry Pi')
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else:
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pi_info(args.revision).pprint(color=args.color)
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formatter = self.parser._get_formatter()
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formatter.add_text(
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"For further information, please refer to https://pinout.xyz/"
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)
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sys.stdout.write('\n')
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sys.stdout.write(formatter.format_help())
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main = PinoutTool()
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