SystemError when printing symbol table entry

[yunline]

Bug report

Bug description:

Platform: Windows10
Tested version: 3.10, 3.11, 3.12rc2

import symtable

script = "a=0"

symt = symtable.symtable(script, "test.py", "exec")
print(symt._table)

<symtable entry top(-1), line 0>OverflowError: Python int too large to convert to C long

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "x:\python\oneliner\__develop\symt.py", line 8, in <module>
    print(symt._table)
SystemError: <built-in method write of _io.TextIOWrapper object at 0x000001508B5559A0> returned a result with an exception set

CPython versions tested on:

3.12

Operating systems tested on:

Windows

Linked PRs

• gh-109207: Fix SystemError when printing symtable entry object. #109225
• [3.12] gh-109207: Fix SystemError when printing symtable entry object. (GH-109225) #109227
• [3.11] gh-109207: Fix SystemError when printing symtable entry object. (GH-109225) #109228

[serhiy-storchaka]

I can see what the problem can be.

The repr first converts the table id to C long using PyLong_AS_LONG(). But the table id is just the id() of the corresponding AST node, and in Python it is an integer representation of pointer. Pointers are 64-bit on 64-bit platform, but C long is 32-bit on Windows. So we get an exception on 64-bit Windows.

Marking this as easy issue, as what you only need is simply remove PyLong_AS_LONG(), replace the %ld format code with %S or %R, and add a test and a NEWS entry. Welcome!