russellballestrini
ee2e180793
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49 lines
1.6 KiB
ReStructuredText
49 lines
1.6 KiB
ReStructuredText
A Python script which searches for available interpreters
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#########################################################
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:date: 2015-05-08 10:34
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:author: Russell Ballestrini
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:tags: Code, DevOps
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:slug: a-python-script-which-searches-for-available-interpreters
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:status: published
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:summary:
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This post describes how to write a polyglot -- in this case a script
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which runs as valid Bash or Python, to search for available Python
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interpreters.
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The script initially runs as Bash but upon finding a first match, the
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script will call itself again this time using the expected Python
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interpreter in interactive mode!
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And now, for the polyglot code:
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::
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#!/bin/sh
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# reinvoke this script with bpython -i, ipython -i, or python -i
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# reference: https://unix.stackexchange.com/a/66242
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''':'
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if type bpython >/dev/null 2>/dev/null; then
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exec bpython -i "$0" "$@"
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elif type ipython >/dev/null 2>/dev/null; then
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exec ipython -i "$0" "$@"
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else
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exec python -i "$0" "$@"
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fi
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'''
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from helpers import (
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base_parser,
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get_hvpc_from_args,
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)
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parser = base_parser('Interactive Python interpreter & connection to hvpc')
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args = parser.parse_args()
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hvpc = get_hvpc_from_args(args)
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print('\nYou now have access to the hvpc object, for example: hvpc.roles\n')
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In this case you can see that we setup the interactive interpreter's
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environment to create an hvpc (Husky VPC) object for exploration.
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If you want a pure python version that doesn't use a bash/python
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polygot, checkout this code I wrote:
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https://github.com/russellballestrini/botoform/blob/master/botoform/plugins/repl.py
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