[IMP] account_move_base_import: don't break without xlrd, add it to dependencies

account_move_base_import/__manifest__.py

@@ -18,6 +18,9 @@
         "views/journal_view.xml",
         "views/partner_view.xml",
     ],
+    'external_dependencies': {
+        'python' : ['xlrd'],
+    },
     'installable': True,
     'license': 'AGPL-3',
 }

account_move_base_import/parser/file_parser.py

@@ -5,14 +5,21 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 import datetime
 import tempfile
-import xlrd
+import logging
 
 from odoo import _
 from odoo.exceptions import UserError
 
-
 from .parser import AccountMoveImportParser, UnicodeDictReader
 
+_logger = logging.getLogger(__name__)
+
+try:
+    import xlrd
+except (ImportError, IOError) as err:
+    _logger.debug(err)
+    xlrd = False
+
 
 def float_or_zero(val):
     """ Conversion function used to manage