/usr/share/pyshared/sympy/series/series.py is in python-sympy 0.7.1.rc1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | from sympy.core.sympify import sympify
def series(expr, x=None, x0=0, n=6, dir="+"):
"""Series expansion of expr around point `x = x0`.
See the doctring of Expr.series() for complete details of this wrapper.
"""
expr = sympify(expr)
return expr.series(x, x0, n, dir)
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