Source code for rituals.util

# -*- coding: utf-8 -*-
""" rituals.util – Helper modules.
# Copyright ⓒ  2015 Jürgen Hermann
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# The full LICENSE file and source are available at
from __future__ import absolute_import, unicode_literals, print_function

import os

[docs]def search_file_upwards(name, base=None): """ Search for a file named `name` from cwd or given directory to root. Return None if nothing's found. """ base = base or os.getcwd() while base != os.path.dirname(base): if os.path.exists(os.path.join(base, name)): return base base = os.path.dirname(base) return None
[docs]def add_dir2pypath(path): """Add given directory to PYTHONPATH, e.g. for pylint.""" py_path = os.environ.get('PYTHONPATH', '') if path not in py_path.split(os.pathsep): py_path = ''.join([path, os.pathsep if py_path else '', py_path]) os.environ['PYTHONPATH'] = py_path
# print('*** PYTHONPATH={}'.format(os.environ.get('PYTHONPATH', None)))