OverflowError: Python int too large to convert to C long

[ThomasBall]

BPO	21816
Nosy	@ned-deily
Files	testint.py: Python repo

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2014-06-20.20:21:51.127>
created_at = <Date 2014-06-20.19:18:11.347>
labels = ['type-bug', 'invalid']
title = 'OverflowError: Python int too large to convert to C long'
updated_at = <Date 2014-06-20.20:21:51.125>
user = 'https://bugs.python.org/ThomasBall'

bugs.python.org fields:

activity = <Date 2014-06-20.20:21:51.125>
actor = 'ned.deily'
assignee = 'none'
closed = True
closed_date = <Date 2014-06-20.20:21:51.127>
closer = 'ned.deily'
components = []
creation = <Date 2014-06-20.19:18:11.347>
creator = 'Thomas.Ball'
dependencies = []
files = ['35712']
hgrepos = []
issue_num = 21816
keywords = []
message_count = 2.0
messages = ['221116', '221121']
nosy_count = 2.0
nosy_names = ['ned.deily', 'Thomas.Ball']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue21816'
versions = ['Python 2.7']

[ThomasBall]

The attached file raises the exception:

OverflowError: Python int too large to convert to C long

in Python 2.7.7, which clearly is a bug.

The error is not present in Python 3.4.

[ned-deily]

In a 32-bit version of Python 2, that value cannot be represented as an 'int' type.

>>> i = 3783907807
>>> type(i)
<type 'long'>

Normally, Python 2 implicitly creates objects of type 'int' or type 'long' as needed. But in your example, you are forcing type 'int' and you correctly get an exception. Your example does not fail with a 64-bit version of Python 2 but it would fail with a larger number. Python 3 does not have this problem because the distinction between the two types has been removed: all Python 3 ints are unlimited precision.

https://docs.python.org/2/library/stdtypes.html#numeric-types-int-float-long-complex
https://docs.python.org/3.4/whatsnew/3.0.html#integers