Dependency graphs are not exported to files

[amamla]

Bug description

When trying to export dependency graphs generated by imports checker (RP0401 or RP0402) to files, nothing happens (files are not generated).

Running checker for one simple file:

# my_module.py

import json
import pylint

Configuration

No response

Command used

pylint --reports=y --disable=all --enable=imports,RP0401,RP0402 --import-graph=imports_all.gv --ext-import-graph=imports_ext.gv --int-import-graph=imports_int.gv my_module.py

Pylint output

Output doesn't contain any mentions about dependency graphs:

Report
======
2 statements analysed.

Statistics by type
------------------

+---------+-------+-----------+-----------+------------+---------+
|type     |number |old number |difference |%documented |%badname |
+=========+=======+===========+===========+============+=========+
|module   |1      |1          |=          |100.00      |0.00     |
+---------+-------+-----------+-----------+------------+---------+
|class    |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+
|method   |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+
|function |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+



6 lines have been analyzed

Raw metrics
-----------

(...)

Files imports_all.gv, imports_ext.gv and imports_int.gv are missing.

Expected behavior

Output should contain information about dependencies and exported graphs:

Report
======
2 statements analysed.

Statistics by type
------------------

+---------+-------+-----------+-----------+------------+---------+
|type     |number |old number |difference |%documented |%badname |
+=========+=======+===========+===========+============+=========+
|module   |1      |1          |=          |100.00      |0.00     |
+---------+-------+-----------+-----------+------------+---------+
|class    |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+
|method   |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+
|function |0      |NC         |NC         |0           |0        |
+---------+-------+-----------+-----------+------------+---------+



External dependencies
---------------------
::

    pylint (my_module)



Modules dependencies graph
--------------------------
imports graph has been written to imports_all.gv
external imports graph has been written to imports_ext.gv
internal imports graph has been written to imports_int.gv


6 lines have been analyzed

Raw metrics
-----------

(...)

Files imports_all.gv, imports_ext.gv and imports_int.gv should be present and not empty.

Pylint version

pylint 3.0.0a8-dev0
astroid 3.0.0a9
Python 3.11.5 (main, Aug 25 2023, 13:19:53) [GCC 9.4.0]

tested also on:

pylint 2.17.5
astroid 2.15.6
Python 3.11.4 (main, Jun 12 2023, 01:56:19) [Clang 11.1.0 ]

OS / Environment

No response

Additional dependencies

No response