~ $ python Python 2.5.2 (r252:60911, Sep 8 2008, 19:47:42) [GCC 3.4.4 (release) (CodeSourcery ARM 2005q3-2)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from sympy import * Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/python2.5/site-packages/sympy/__init__.py", line 20, in <module> from sympy.core import * File "/usr/lib/python2.5/site-packages/sympy/core/__init__.py", line 8, in <module> from expr import Expr, AtomicExpr File "/usr/lib/python2.5/site-packages/sympy/core/expr.py", line 2020, in <module> from mul import Mul File "/usr/lib/python2.5/site-packages/sympy/core/mul.py", line 1197, in <module> from numbers import Rational, igcd File "/usr/lib/python2.5/site-packages/sympy/core/numbers.py", line 1993, in <module> from function import FunctionClass File "/usr/lib/python2.5/site-packages/sympy/core/function.py", line 43, in <module> from sympy.utilities import default_sort_key File "/usr/lib/python2.5/site-packages/sympy/utilities/__init__.py", line 13, in <module> from runtests import test, doctest File "/usr/lib/python2.5/site-packages/sympy/utilities/runtests.py", line 22, in <module> from timeit import default_timer as clock ImportError: No module named timeit >>>