Fix mypy violations due to the breaking change in the new version which

changed the default value from no_implicit_optional = false to
no_implicit_optional = true.

libcloud/common/types.py

@@ -89,7 +89,7 @@ class LibcloudError(Exception):
     """The base class for other libcloud exceptions"""
 
     def __init__(self, value, driver=None):
-        # type: (str, BaseDriver) -> None
+        # type: (str, Optional[BaseDriver]) -> None
         super().__init__(value)
         self.value = value
         self.driver = driver

libcloud/compute/base.py

@@ -118,8 +118,8 @@ class UuidMixin:
     Mixin class for get_uuid function.
     """
 
-    def __init__(self):
-        self._uuid = None  # type: str
+    def __init__(self) -> None:
+        self._uuid = None  # type: Optional[str]
 
     def get_uuid(self):
         """
@@ -208,10 +208,10 @@ def __init__(
         public_ips,  # type: List[str]
         private_ips,  # type: List[str]
         driver,
-        size=None,  # type: NodeSize
-        image=None,  # type: NodeImage
-        extra=None,  # type: dict
-        created_at=None,  # type: datetime.datetime
+        size=None,  # type: Optional[NodeSize]
+        image=None,  # type: Optional[NodeImage]
+        extra=None,  # type: Optional[dict]
+        created_at=None,  # type: Optional[datetime.datetime]
     ):
         """
         :param id: Node ID.
@@ -500,7 +500,7 @@ def __init__(
         image_id,  # type: str
         state,  # type: NodeImageMemberState
         driver,  # type: NodeDriver
-        created=None,  # type: datetime.datetime
+        created=None,  # type: Optional[datetime.datetime]
         extra=None,  # type: Optional[dict]
     ):
         """
@@ -755,10 +755,10 @@ def __init__(
         self,
         id,  # type: str
         driver,  # type: NodeDriver
-        size=None,  # type: int
+        size=None,  # type: Optional[int]
         extra=None,  # type: Optional[Dict]
         created=None,  # type: Optional[datetime.datetime]
-        state=None,  # type: StorageVolumeState
+        state=None,  # type: Optional[StorageVolumeState]
         name=None,  # type: Optional[str]
     ):
         # type: (...) -> None
@@ -935,7 +935,7 @@ def create_node(
         size,  # type: NodeSize
         image,  # type: NodeImage
         location=None,  # type: Optional[NodeLocation]
-        auth=None,  # type: T_Auth
+        auth=None,  # type: Optional[T_Auth]
     ):
         # type: (...) -> Node
         """
@@ -1028,11 +1028,11 @@ def deploy_node(
         ssh_timeout=10,  # type: int
         ssh_key=None,  # type: Optional[T_Ssh_key]
         ssh_key_password=None,  # type: Optional[str]
-        auth=None,  # type: T_Auth
+        auth=None,  # type: Optional[T_Auth]
         timeout=SSH_CONNECT_TIMEOUT,  # type: int
         max_tries=3,  # type: int
         ssh_interface="public_ips",  # type: str
-        at_exit_func=None,  # type: Callable
+        at_exit_func=None,  # type: Optional[Callable]
         wait_period=5,  # type: int
         **create_node_kwargs,
     ):

libcloud/container/base.py

@@ -41,8 +41,8 @@ def __init__(
         state,  # type: ContainerState
         ip_addresses,  # type: List[str]
         driver,  # type: ContainerDriver
-        extra=None,  # type: dict
-        created_at=None,  # type: str
+        extra=None,  # type: Optional[dict]
+        created_at=None,  # type: Optional[str]
     ):
         """
         :param id: Container id.
@@ -112,7 +112,7 @@ def __init__(
         path,  # type: str
         version,  # type: str
         driver,  # type: ContainerDriver
-        extra=None,  # type: dict
+        extra=None,  # type: Optional[dict]
     ):
         """
         :param id: Container Image id.
@@ -164,7 +164,7 @@ def __init__(
         id,  # type: str
         name,  # type: str
         driver,  # type: ContainerDriver
-        extra=None,  # type: dict
+        extra=None,  # type: Optional[dict]
     ):
         """
         :param id: Container Image id.

libcloud/dns/base.py

@@ -36,7 +36,7 @@ def __init__(
         type,  # type: str
         ttl,  # type: int
         driver,  # type: DNSDriver
-        extra=None,  # type: dict
+        extra=None,  # type: Optional[dict]
     ):
         """
         :param id: Zone id.
@@ -116,8 +116,8 @@ def __init__(
         data,  # type: str
         zone,  # type: Zone
         driver,  # type: DNSDriver
-        ttl=None,  # type: int
-        extra=None,  # type: dict
+        ttl=None,  # type: Optional[int]
+        extra=None,  # type: Optional[dict]
     ):
         """
         :param id: Record id