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gh-95778: Mention sys.set_int_max_str_digits() in error message #96874

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Merged
vstinner merged 3 commits into from
Sep 16, 2022
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gh-95778: Mention sys.set_int_max_str_digits() in error message #96874

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b5ecb3f
gh-95778: Mention sys.set_int_max_str_digits() in error message
vstinner Sep 16, 2022
87377fc
Update doc; add NEWS entry
vstinner Sep 16, 2022
1d2421c
Fix Sphinx syntax
vstinner Sep 16, 2022
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Update doc; add NEWS entry
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@vstinner
vstinner committed Sep 16, 2022
commit 87377fca9a4325d18d0db047c3dbb51603985c9a
4 changes: 2 additions & 2 deletions Doc/library/stdtypes.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -5493,15 +5493,15 @@ When an operation would exceed the limit, a :exc:`ValueError` is raised:
>>> _ = int('2' * 5432)
Traceback (most recent call last):
...
ValueError: Exceeds the limit (4300) for integer string conversion: value has 5432 digits.
ValueError: Exceeds the limit (4300) for integer string conversion: value has 5432 digits; use sys.set_int_max_str_digits() to increase the limit.
>>> i = int('2' * 4300)
>>> len(str(i))
4300
>>> i_squared = i*i
>>> len(str(i_squared))
Traceback (most recent call last):
...
ValueError: Exceeds the limit (4300) for integer string conversion: value has 8599 digits.
ValueError: Exceeds the limit (4300) for integer string conversion: value has 8599 digits; use sys.set_int_max_str_digits() to increase the limit.
>>> len(hex(i_squared))
7144
>>> assert int(hex(i_squared), base=16) == i*i # Hexadecimal is unlimited.
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2022-09-16-19-02-40.gh-issue-95778.cJmnst.rst
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@@ -0,0 +1,3 @@
When :exc:`ValueError` is raised if an integer is larger than the limit,
mention the :`sys.set_int_max_str_digits` function in the error message.
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Patch by Victor Stinner.