mirror of https://github.com/sgoudham/Enso-Bot.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
5 years ago
|
from __future__ import absolute_import, unicode_literals
|
||
|
|
|
||
|
|
from abc import ABCMeta, abstractmethod
|
||
|
|
|
||
|
|
from six import add_metaclass
|
||
|
|
|
||
|
|
|
||
|
|
@add_metaclass(ABCMeta)
|
||
|
|
class Discover(object):
|
||
|
|
"""Discover and provide the requested Python interpreter"""
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def add_parser_arguments(cls, parser):
|
||
|
|
"""Add CLI arguments for this discovery mechanisms.
|
||
|
|
|
||
|
|
:param parser: the CLI parser
|
||
|
|
"""
|
||
|
|
raise NotImplementedError
|
||
|
|
|
||
|
|
# noinspection PyUnusedLocal
|
||
|
|
def __init__(self, options):
|
||
|
|
"""Create a new discovery mechanism.
|
||
|
|
|
||
|
|
:param options: the parsed options as defined within :meth:`add_parser_arguments`
|
||
|
|
"""
|
||
|
|
self._has_run = False
|
||
|
|
self._interpreter = None
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def run(self):
|
||
|
|
"""Discovers an interpreter.
|
||
|
|
|
||
|
|
|
||
|
|
:return: the interpreter ready to use for virtual environment creation
|
||
|
|
"""
|
||
|
|
raise NotImplementedError
|
||
|
|
|
||
|
|
@property
|
||
|
|
def interpreter(self):
|
||
|
|
"""
|
||
|
|
:return: the interpreter as returned by :meth:`run`, cached
|
||
|
|
"""
|
||
|
|
if self._has_run is False:
|
||
|
|
self._interpreter = self.run()
|
||
|
|
self._has_run = True
|
||
|
|
return self._interpreter
|