Variable created in exec changes type if in list comprehension

[pranavsetpal]

Steps To Reproduce

Run

#main.sage
exec("n = 6")

print(n)
print(type(n))

ls = [i for i in range(n)]

using sage main.sage

Expected Behavior

Should output

6                                                                                                             
<class 'int'>

This output can be seen by commenting out the last line, i.e. by running

exec("n = 6")

print(n)
print(type(n))

Actual Behavior

Returns error

<function numerical_approx at 0x7f2775c46d40>                                                                 
<class 'function'>                                                                                            
Traceback (most recent call last):                                                                            
  File "/home/pranav/bug/main.sage.py", line 11, in <module>                                                  
    ls = [i for i in range(n)]                                                                                
                     ^^^^^^^^                                                                                 
TypeError: 'function' object cannot be interpreted as an integer                                              
                                                                                                              
shell returned 1

Additional Information

This issue only occurs if the variable is created by the exec function. Further, trying to run n = Integer(n) immediately after the exec statement is not useful since sage already assumes n to be a function

Environment

• OS: NixOS 24.05
• Sage Version: SageMath version 10.5, Release Date: 2024-12-04

Checklist

• I have searched the existing issues for a bug report that matches the one I want to file, without success.
• I have read the documentation and troubleshoot guide

[DaveWitteMorris]

I cannot reproduce the problem: I get the correct output in both cases (with the final line and without). This is with sagemath 10.6.beta2 on MacOS 14.6.1.

[pranavsetpal]

I'm trying to build sagemath 10.6.beta2 on my system and test it. I'll let you know as soon as that gets done.

Update: Still facing a few errors compiling; made a support post here https://groups.google.com/g/sage-support/c/aWN-OmMgU1c

[pranavsetpal]

I have now tested it on v10.6.beta2 and still receiving the same issue

[pranavsetpal]

I was debugging this behavior a bit more and a difference in importing sage seems to cause the issue (wth??)

from sage.all import *

zero = Integer(0)
exec("n = 6")

print(n)
print(type(n))

ls = [zero for i in range(n)]

this gives the error, but

from sage.all import AA,AbelianGroup, ... # list of all packages gotten from "from sage import all; print( ','.join(dir(all)) )"

zero = Integer(0)
exec("n = 6")

print(n)
print(type(n))

ls = [zero for i in range(n)]

this gives the expected behavior.

This is most likely an issue on my end, but could one more person confirm they cannot reproduce this and I'll close the issue.