Model setLogFile(None) error

[liangbug]

Describe the bug
m.setLogfile(None) occurs an error below
Traceback (most recent call last):
.......
m.setLogfile(None)
File "src\pyscipopt\scip.pxi", line 4858, in pyscipopt.scip.Model.setLogfile
TypeError: expected bytes, NoneType found

To Reproduce

from pyscipopt import Model

m = Model()
x = m.addVar(name='x', vtype='I')
y = m.addVar(name='y', vtype='I')
m.addCons(x+2*y <= 3)
m.addCons(2*x+y <= 3)
m.setObjective(x+y, 'maximize')
m.setLogfile('opt.log')
m.optimize()
m.setLogfile(None)
m.writeStatistics('stat.log')   

Expected behavior
m.setLogfile(None) stop log the file and no error occurs.

Screenshots
The fixed code

System

• OS: Win10
• Version 22H2
• SCIP version 8.0.3
• How did you install pyscipopt? pip install pyscipopt==4.4.0

Additional context
Add any other context about the problem here.

[Joao-Dionisio]

Hello, @liangbug! Can you please create a PR with your proposed changes? This seems useful if I understood it correctly :)

[liangbug]

Hi, @Joao-Dionisio, I created a PR #813 .

[Joao-Dionisio]

Fixed in #813.

Thank you @liangbug!