Initial import from Docker volume

modules/account_de_skr03/__init__.py

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+# This file is part of Tryton. The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.pool import Pool
+
+from . import account
+
+
+def register():
+    Pool.register(
+        account.TaxTemplate,
+        module='account_de_skr03', type_='model')

modules/account_de_skr03/account.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from sql import Table
+
+from trytond.pool import PoolMeta
+from trytond.transaction import Transaction
+
+
+class TaxTemplate(metaclass=PoolMeta):
+    __name__ = 'account.tax.template'
+
+    @classmethod
+    def __register__(cls, module_name):
+        cursor = Transaction().connection.cursor()
+        model_data = Table('ir_model_data')
+
+        # Migration from 5.6: Rename main tax ids
+        if module_name == 'account_de_skr03':
+            for old_id, new_id in (
+                    ('tax_ust_19', 'tax_ust_standard_rate'),
+                    ('tax_ust_7', 'tax_ust_reduced_rate'),
+                    ('tax_vst_19', 'tax_vst_standard_rate'),
+                    ('tax_vst_7', 'tax_vst_reduced_rate'),
+                    ('tax_eu_19_purchase', 'tax_purchase_eu_standard_rate'),
+                    ('tax_eu_7_purchase', 'tax_purchase_eu_reduced_rate'),
+                    ('tax_import_19', 'tax_import_standard_rate'),
+                    ('tax_import_7', 'tax_import_reduced_rate'),
+                    ):
+                cursor.execute(*model_data.select(model_data.id,
+                        where=(model_data.fs_id == new_id)
+                        & (model_data.module == module_name)))
+                if cursor.fetchone():
+                    continue
+                cursor.execute(*model_data.update(
+                        columns=[model_data.fs_id],
+                        values=[new_id],
+                        where=(model_data.fs_id == old_id)
+                        & (model_data.module == module_name)))
+
+        super().__register__(module_name)

modules/account_de_skr03/tests/__init__.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.

modules/account_de_skr03/tests/test_module.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.tests.test_tryton import ModuleTestCase
+
+
+class AccountDESKR03TestCase(ModuleTestCase):
+    'Test Account DE SKR03 module'
+    module = 'account_de_skr03'
+
+
+del ModuleTestCase

modules/account_de_skr03/tryton.cfg

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+[tryton]
+version=7.2.0
+depends:
+    account
+xml:
+    account_de.xml
+    tax_de.xml