diff --git a/mathics/builtin/numbers/constants.py b/mathics/builtin/numbers/constants.py
index a29aefe81..73779ff6a 100644
--- a/mathics/builtin/numbers/constants.py
+++ b/mathics/builtin/numbers/constants.py
@@ -646,8 +646,7 @@ def evaluate(self, evaluation: Evaluation) -> MachineReal:
return NUMERICAL_CONSTANTS[self.symbol]
-class Pi(_MPMathConstant, _SympyConstant):
- # class Pi(_MPMathConstant, _NumpyConstant, _SympyConstant):
+class Pi(_MPMathConstant, _NumpyConstant, _SympyConstant):
"""
:Pi, \u03c0: https://en.wikipedia.org/wiki/Pi (
@@ -752,7 +751,7 @@ class Underflow(Builtin):
# Constants that are not numpy constants,
-for cls in (Catalan, Degree, Glaisher, GoldenRatio, Khinchin, Pi):
+for cls in (Catalan, Degree, Glaisher, GoldenRatio, Khinchin):
instance = cls(expression=False)
val = instance.get_constant()
NUMERICAL_CONSTANTS[instance.symbol] = MachineReal(val.value)
diff --git a/mathics/eval/arithmetic.py b/mathics/eval/arithmetic.py
index 33d76c6e8..00976ac7b 100644
--- a/mathics/eval/arithmetic.py
+++ b/mathics/eval/arithmetic.py
@@ -479,7 +479,7 @@ def test_positive_arithmetic_expr(expr: BaseElement) -> bool:
return False
head, elements = expr.get_head(), expr.elements
- print("check specifics", expr)
+
if head is SymbolPlus:
positive_nonpositive_terms = {True: [], False: []}
for term in elements:
diff --git a/mathics/eval/parts.py b/mathics/eval/parts.py
index 3ecf356d1..61a1adf33 100644
--- a/mathics/eval/parts.py
+++ b/mathics/eval/parts.py
@@ -6,7 +6,7 @@
from typing import List
-from mathics.core.atoms import Integer, Integer1
+from mathics.core.atoms import Integer
from mathics.core.convert.expression import make_expression
from mathics.core.element import BaseElement, BoxElementMixin
from mathics.core.exceptions import (
@@ -20,11 +20,7 @@
from mathics.core.list import ListExpression
from mathics.core.subexpression import SubExpression
from mathics.core.symbols import Atom, Symbol, SymbolList
-from mathics.core.systemsymbols import (
- SymbolDirectedInfinity,
- SymbolInfinity,
- SymbolNothing,
-)
+from mathics.core.systemsymbols import SymbolInfinity, SymbolNothing
from mathics.eval.patterns import Matcher