ring r=0,(x,y,z),lp;
timer=1;
LIB("python_module.so");
Python_module::python("from Singular import number,  polynomial, power_series, gen, vector_power_series
zero=number(0)
one=number(1)
zerop=polynomial(0)
onep=polynomial(1)
unit1=gen(1)
x=polynomial('x')
g=number(-1)*x+polynomial(1)
print g
f=polynomial(1)
s=vector_power_series(unit1,g);
i=0
for t in s:
  print t
  i=i+1
  if i>10:
   break
s=power_series(f,f);
i=0
for t in s:
  print t
  i=i+1
  if i>10:
   break
g=polynomial('x')+polynomial('y')
g = number(-1) *g
g=g+polynomial(1)
print g
s=power_series(polynomial(1),g)
i=0
for t in s:
  print t
  i=i+1
  if i>10:
   break
s=power_series(g,g)
i=0
for t in s:
  print t
  i=i+1
  if i>10:
   break
");
$