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Python will not convert long decimal strings to integers by default #11

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Merged
MarkCBell merged 2 commits into from
Jun 19, 2026
Merged

Python will not convert long decimal strings to integers by default #11

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Newer versions of Python will not convert long decimal strings to int…
NathanDunfield Jun 2, 2026
e331d11
Reorder imports
MarkCBell Jun 19, 2026
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8 changes: 8 additions & 0 deletions realalg/base_algebraic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,8 @@
from functools import total_ordering
from math import log10 as log
from numbers import Integral
import sys

import sympy as sp

from .interval import Interval
Expand All @@ -14,6 +16,12 @@
sp_QQ_x = sp.QQ.old_poly_ring(sp_x)
LOG_2 = log(2)

# By default, Python will only convert a decimal string of length at
# most 4300 to an integer to protect against DDOS attacks; not relevant
# here (CVE-2020-10735).
if hasattr(sys, 'set_int_max_str_digits'):
sys.set_int_max_str_digits(0)

def log_plus(x):
''' Return the height of the number ``x``. '''
return log(max(1, abs(x)))
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