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#!/usr/bin/env python
#
# Tests that a useful message is give in the ImportError when trying to import
# sympy from Python 2. This ensures that we don't get a Py2 SyntaxError from
# sympy/__init__.py
import sys
assert sys.version_info[:2] == (2, 7), "This test is for Python 2.7 only"
import os
thisdir = os.path.dirname(__file__)
parentdir = os.path.normpath(os.path.join(thisdir, '..'))
# Append the SymPy root directory to path
sys.path.append(parentdir)
try:
import sympy # noqa: F401
except ImportError as exc:
message = str(exc)
# e.g. "Python version 3.5 or above is required for SymPy."
assert message.startswith("Python version")
assert message.endswith(" or above is required for SymPy.")
else:
raise AssertionError("import sympy should give ImportError on Python 2.7")
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