# 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
import sys
PY_VERSION = sys.version_info[:3]
PYPY = 'PyPy' in sys.version
UNIXY = os.sep == '/'
WINDOWS = not UNIXY
RERAISED_EXCEPTIONS = (KeyboardInterrupt, SystemExit, MemoryError)
# Part of the deprecated Python 2/3 compatibility layer. For more details see
# the comment in `utils/__init__.py`. This constant was added to support
# SSHLibrary: https://github.com/robotframework/SSHLibrary/issues/401
PY2 = False
[docs]def isatty(stream):
# first check if buffer was detached
if hasattr(stream, 'buffer') and stream.buffer is None:
return False
if not hasattr(stream, 'isatty'):
return False
try:
return stream.isatty()
except ValueError: # Occurs if file is closed.
return False