diff --git a/src/main/python/ddadevops/domain/init_service.py b/src/main/python/ddadevops/domain/init_service.py
index 3d2efa3..d15ec34 100644
--- a/src/main/python/ddadevops/domain/init_service.py
+++ b/src/main/python/ddadevops/domain/init_service.py
@@ -32,6 +32,7 @@ class InitService:
         mixin_types = self.devops_factory.__parse_mixin_types__(input["mixin_types"])
 
         version = None
+        default_mappings = []
 
         if BuildType.C4K in build_types:
             default_mappings = [
diff --git a/src/main/python/ddadevops/infrastructure/infrastructure.py b/src/main/python/ddadevops/infrastructure/infrastructure.py
index 95773ee..7f69e56 100644
--- a/src/main/python/ddadevops/infrastructure/infrastructure.py
+++ b/src/main/python/ddadevops/infrastructure/infrastructure.py
@@ -4,13 +4,16 @@ from os import chmod
 from subprocess import run
 from pkg_resources import resource_string
 import yaml
+from os import environ
 import deprecation
 from ..domain import Devops, Image, C4k, Release, BuildFile
 from ..python_util import execute
 
+
 class ProjectRepository:
     pass
 
+
 class ResourceApi:
     def read_resource(self, path: str) -> bytes:
         return resource_string(__name__, path)
@@ -100,25 +103,28 @@ class ExecutionApi:
             print(output)
         return output
 
-class EnvironmentApi():
+
+class EnvironmentApi:
     def get(self, key):
         return environ.get(key)
 
 
-class CredentialsApi():
-    def __init__ (self):
+class CredentialsApi:
+    def __init__(self):
         self.execution_api = ExecutionApi()
 
-    def gopass_field_from_path (self, path, field):
+    def gopass_field_from_path(self, path, field):
         credential = None
         if path and field:
-            print('get field for: ' + path + ', ' + field)
-            credential = self.execution_api.execute(['gopass', 'show', path, field])
+            print("get field for: " + path + ", " + field)
+            credential = self.execution_api.execute(["gopass", "show", path, field])
         return credential
 
-    def gopass_password_from_path (elf, path):
+    def gopass_password_from_path(self, path):
         credential = None
         if path:
-            print('get password for: ' + path)
-            credential = self.execution_api.execute(['gopass', 'show', '--password', path])
+            print("get password for: " + path)
+            credential = self.execution_api.execute(
+                ["gopass", "show", "--password", path]
+            )
         return credential