commit - 9d9b5072223e4276793a7c6005786cb87f96cb08
commit + 416ef7cf872b70c07dd8dd7190ed92d038491bb1
blob - f979d3cdf036e519ffd79209a431c3736611ee0c
blob + 85d073258d11da96c0d7330d6a337793aa42aa77
--- dulwich/config.py
+++ dulwich/config.py
@@ -29,13 +29,12 @@ TODO:
 import os
 import sys
 import warnings
-
 from typing import (
     BinaryIO,
     Iterable,
     Iterator,
-    List,
     KeysView,
+    List,
     MutableMapping,
     Optional,
     Tuple,
@@ -142,8 +141,8 @@ class CaseInsensitiveOrderedMultiDict(MutableMapping):
 BytesLike = Union[bytes, str]
 Key = Tuple[bytes, ...]
 KeyLike = Union[bytes, str, Tuple[BytesLike, ...]]
-Value = Union[bytes, bool]
-ValueLike = Union[bytes, str, bool]
+Value = bytes
+ValueLike = Union[bytes, str]
 
 
 class Config(object):
@@ -202,7 +201,12 @@ class Config(object):
             return False
         raise ValueError("not a valid boolean string: %r" % value)
 
-    def set(self, section: KeyLike, name: BytesLike, value: ValueLike) -> None:
+    def set(
+        self,
+        section: KeyLike,
+        name: BytesLike,
+        value: Union[ValueLike, bool]
+    ) -> None:
         """Set a configuration value.
 
         Args:
@@ -369,11 +373,14 @@ class ConfigDict(Config, MutableMapping[Key, MutableMa
         self,
         section: KeyLike,
         name: BytesLike,
-        value: ValueLike,
+        value: Union[ValueLike, bool],
     ) -> None:
         section, name = self._check_section_and_name(section, name)
 
-        if not isinstance(value, (bytes, bool)):
+        if isinstance(value, bool):
+            value = b"true" if value else b"false"
+
+        if not isinstance(value, bytes):
             value = value.encode(self.encoding)
 
         self._values.setdefault(section)[name] = value
@@ -732,7 +739,12 @@ class StackedConfig(Config):
             except KeyError:
                 pass
 
-    def set(self, section: KeyLike, name: BytesLike, value: ValueLike) -> None:
+    def set(
+        self,
+        section: KeyLike,
+        name: BytesLike,
+        value: Union[ValueLike, bool]
+    ) -> None:
         if self.writable is None:
             raise NotImplementedError(self.set)
         return self.writable.set(section, name, value)
@@ -759,9 +771,5 @@ def parse_submodules(config: ConfigFile) -> Iterator[T
         section_kind, section_name = section
         if section_kind == b"submodule":
             sm_path = config.get(section, b"path")
-            assert isinstance(sm_path, bytes)
-            assert sm_path is not None
             sm_url = config.get(section, b"url")
-            assert sm_url is not None
-            assert isinstance(sm_url, bytes)
             yield (sm_path, sm_url, section_name)
blob - c7ff6544e509efb2a6c4b4fb4382b581726c6243
blob + d34dac7e8a6f3a6113e2b30e97f9f4f27dbe1a1a
--- dulwich/porcelain.py
+++ dulwich/porcelain.py
@@ -1001,10 +1001,7 @@ def get_remote_repo(
 
     if config.has_section(section):
         remote_name = encoded_location.decode()
-        url = config.get(section, "url")
-        assert url is not None
-        assert isinstance(url, bytes)
-        encoded_location = url
+        encoded_location = config.get(section, "url")
     else:
         remote_name = None
 
blob - 396069b9de456f1bde341145a311b23b46130da8
blob + 80c2ad575723a1452ebcc6bd4b34a2fe267fc7e1
--- dulwich/repo.py
+++ dulwich/repo.py
@@ -195,16 +195,12 @@ def get_user_identity(config: "StackedConfig", kind: O
             email = email_uc.encode("utf-8")
     if user is None:
         try:
-            config_value = config.get(("user",), "name")
-            assert isinstance(config_value, bytes)
-            user = config_value
+            user = config.get(("user",), "name")
         except KeyError:
             user = None
     if email is None:
         try:
-            config_value = config.get(("user",), "email")
-            assert isinstance(config_value, bytes)
-            email = config_value
+            email = config.get(("user",), "email")
         except KeyError:
             email = None
     default_user, default_email = _get_default_identity()