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# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from __future__ import print_function
import os
import sys
import code
import argparse
import platform
import runpy
import llnl.util.tty as tty
import spack
description = "launch an interpreter as spack would launch a command"
section = "developer"
level = "long"
def setup_parser(subparser):
subparser.add_argument(
'-V', '--version', action='store_true',
help='print the Python version number and exit')
subparser.add_argument(
'-c', dest='python_command', help='command to execute')
subparser.add_argument(
'-m', dest='module', action='store',
help='run library module as a script')
subparser.add_argument(
'python_args', nargs=argparse.REMAINDER,
help="file to run plus arguments")
def python(parser, args, unknown_args):
if args.version:
print('Python', platform.python_version())
return
if args.module:
sys.argv = ['spack-python'] + unknown_args + args.python_args
runpy.run_module(args.module, run_name="__main__", alter_sys=True)
return
if unknown_args:
tty.die("Unknown arguments:", " ".join(unknown_args))
# Fake a main python shell by setting __name__ to __main__.
console = code.InteractiveConsole({'__name__': '__main__',
'spack': spack})
if "PYTHONSTARTUP" in os.environ:
startup_file = os.environ["PYTHONSTARTUP"]
if os.path.isfile(startup_file):
with open(startup_file) as startup:
console.runsource(startup.read(), startup_file, 'exec')
python_args = args.python_args
python_command = args.python_command
if python_command:
console.runsource(python_command)
elif python_args:
sys.argv = python_args
with open(python_args[0]) as file:
console.runsource(file.read(), python_args[0], 'exec')
else:
# Provides readline support, allowing user to use arrow keys
console.push('import readline')
console.interact("Spack version %s\nPython %s, %s %s"""
% (spack.spack_version, platform.python_version(),
platform.system(), platform.machine()))
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