boto/compat.py

# Copyright (c) 2012 Amazon.com, Inc. or its affiliates.  All Rights Reserved
#
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# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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#
import os


# This allows boto modules to say "from boto.compat import json".  This is
# preferred so that all modules don't have to repeat this idiom.
try:
    import simplejson as json
except ImportError:
    import json


# If running in Google App Engine there is no "user" and
# os.path.expanduser() will fail. Attempt to detect this case and use a
# no-op expanduser function in this case.
try:
    os.path.expanduser('~')
    expanduser = os.path.expanduser
except (AttributeError, ImportError):
    # This is probably running on App Engine.
    expanduser = (lambda x: x)