[IMP] base_import_module: provide full traceback if error arises

Before this commit, when an error happens during the import of a data
module, the UserError was displaying the last part of the traceback. In
some cases, it was sufficient (missing manifest, unknown dependency,
...). But in other cases, this was only displaying the record triggering
the error, but not more, giving no clue on what was the exact error and
how to fix it.

This commit adapts the UserError to provide the full traceback in the
popup window, such that the user can understand or at least report the
error.

Another task is targeting master to improve the design of this window.

task-4876416

closes odoo#233237

X-original-commit: 65873de
Signed-off-by: Julien Castiaux (juc) <juc@odoo.com>
Signed-off-by: Vallaeys Valentin (vava) <vava@odoo.com>

Author: vava-odoo

addons/base_import_module/models/ir_module.py

@@ -7,6 +7,7 @@
 import os
 import pathlib
 import sys
+import traceback
 import zipfile
 from babel.messages import extract
 from collections import defaultdict
@@ -19,7 +20,7 @@
 from odoo.http import request
 from odoo.modules.module import MANIFEST_NAMES, Manifest
 from odoo.release import major_version
-from odoo.tools import SQL, convert_file, exception_to_unicode
+from odoo.tools import SQL, convert_file
 from odoo.tools import file_open, file_path, file_open_temporary_directory, ormcache
 from odoo.tools.misc import OrderedSet, topological_sort
 from odoo.tools.translate import JAVASCRIPT_TRANSLATION_COMMENT, CodeTranslations, TranslationImporter, get_base_langs
@@ -382,7 +383,7 @@ def _import_zipfile(self, module_file, force=False, with_demo=False):
                     except Exception as e:
                         raise UserError(_(
                             "Error while importing module '%(module)s'.\n\n %(error_message)s \n\n",
-                            module=mod_name, error_message=exception_to_unicode(e),
+                            module=mod_name, error_message=traceback.format_exc(),
                         )) from e
         return "", module_names