46 lines
2.1 KiB
Diff
46 lines
2.1 KiB
Diff
# sympy__sympy-21612
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# Loki Mode Multi-Agent Patch
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# Attempts: 1
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This is the Loki Mode skill repository, not the sympy repository. The task is asking me to generate a patch for the sympy/sympy repository. Based on the architect's analysis, I need to create a patch for `sympy/printing/str.py`. Let me look at a typical sympy repository structure to understand the fix needed.
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Based on the architect's analysis:
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- The bug is in `sympy/printing/str.py` around line 336 in the `_print_Mul` method
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- The fix is to change `isinstance(item.base, Mul)` to `isinstance(item.base, (Mul, Pow))`
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Let me generate the patch based on typical sympy code structure:
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```
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--- a/sympy/printing/str.py
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+++ b/sympy/printing/str.py
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@@ -333,7 +333,7 @@ class StrPrinter(Printer):
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if item.exp != -1:
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b.append(Pow(item.base, -item.exp, evaluate=False))
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else:
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- if isinstance(item.base, Mul):
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+ if isinstance(item.base, (Mul, Pow)):
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b_str.append("(%s)" % item.base)
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else:
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b_str.append(self._print(item.base))
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--- a/sympy/printing/tests/test_str.py
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+++ b/sympy/printing/tests/test_str.py
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@@ -1,5 +1,5 @@
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from sympy import (Abs, Catalan, cos, Derivative, E, EulerGamma, exp, factorial,
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- factorial2, Function, GoldenRatio, I, Integer, Integral, Interval,
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+ factorial2, Function, GoldenRatio, I, Integer, Integral, Interval, latex,
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Lambda, Limit, log, Matrix, nan, O, oo, pi, Pow, Rational, S, sin, sqrt,
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Sum, Symbol, symbols, Wild, WildFunction, zeta, zoo, Dummy, Dict)
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from sympy.printing import sstr, sstrrepr, StrPrinter
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@@ -259,6 +259,11 @@ def test_Mul():
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assert str(x/y) == 'x/y'
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assert str(y/x) == 'y/x'
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assert str(x/y/z) == 'x/(y*z)'
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+ # Test that nested fractions are printed with proper parentheses
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+ assert str(x/(1/y)) == 'x/(1/y)'
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+ assert str((x/y)/(1/z)) == '(x/y)/(1/z)'
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+ # Regression test for LaTeX parsing of nested fractions
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+ assert str(((a**3 + b)/c)/(1/(c**2))) == '((a**3 + b)/c)/(1/c**2)'
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def test_Pow():
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```
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