# Copyright 2008-2015 Nokia Networks
# Copyright 2016- Robot Framework Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from .encoding import system_decode as decode, system_encode as encode
[docs]def get_env_var(name, default=None):
try:
value = os.environ[encode(name)]
except KeyError:
return default
else:
return decode(value)
[docs]def set_env_var(name, value):
os.environ[encode(name)] = encode(value)
[docs]def del_env_var(name):
value = get_env_var(name)
if value is not None:
del os.environ[encode(name)]
return value
[docs]def get_env_vars(upper=os.sep != '/'):
# by default, name is upper-cased on Windows regardless interpreter
return dict((name if not upper else name.upper(), get_env_var(name))
for name in (decode(name) for name in os.environ))