@@ -7,7 +7,6 @@
 import logging
 import os
 import re
-from dataclasses import dataclass
 import shlex
 import warnings
 from gitdb.db.loose import LooseObjectDB
@@ -890,7 +889,7 @@ def blame(self, rev: Union[str, HEAD], file: str, incremental: bool = False, **k
         commits: Dict[str, Commit] = {}
         blames: List[List[Commit | List[str | bytes] | None]] = []
 
-        class InfoTC(TypedDict, total=False):
+        class InfoTD(TypedDict, total=False):
             sha: str
             id: str
             filename: str
@@ -902,29 +901,15 @@ class InfoTC(TypedDict, total=False):
             committer_email: str
             committer_date: int
 
-        @dataclass
-        class InfoDC(Dict[str, Union[str, int]]):
-            sha: str = ''
-            id: str = ''
-            filename: str = ''
-            summary: str = ''
-            author: str = ''
-            author_email: str = ''
-            author_date: int = 0
-            committer: str = ''
-            committer_email: str = ''
-            committer_date: int = 0
-
-        # info: InfoTD = {}
-        info = InfoDC()
+        info: InfoTD = {}
 
         keepends = True
         for line_bytes in data.splitlines(keepends):
             try:
                 line_str = line_bytes.rstrip().decode(defenc)
             except UnicodeDecodeError:
                 firstpart = ''
-                parts = ['']
+                parts = []
                 is_binary = True
             else:
                 # As we don't have an idea when the binary data ends, as it could contain multiple newlines
@@ -943,10 +928,10 @@ class InfoDC(Dict[str, Union[str, int]]):
                 # another line of blame with the same data
                 digits = parts[-1].split(" ")
                 if len(digits) == 3:
-                    info.id = firstpart
+                    info = {'id': firstpart}
                     blames.append([None, []])
-                elif info.id != firstpart:
-                    info.id = firstpart
+                elif info['id'] != firstpart:
+                    info = {'id': firstpart}
                     blames.append([commits.get(firstpart), []])
                 # END blame data initialization
             else:
@@ -962,12 +947,20 @@ class InfoDC(Dict[str, Union[str, int]]):
                     # committer-time 1192271832
                     # committer-tz -0700  - IGNORED BY US
                     role = m.group(0)
-                    if firstpart.endswith('-mail'):
-                        info[f"{role}_email"] = parts[-1]
-                    elif firstpart.endswith('-time'):
-                        info[f"{role}_date"] = int(parts[-1])
-                    elif role == firstpart:
-                        info[role] = parts[-1]
+                    if role == 'author':
+                        if firstpart.endswith('-mail'):
+                            info["author_email"] = parts[-1]
+                        elif firstpart.endswith('-time'):
+                            info["author_date"] = int(parts[-1])
+                        elif role == firstpart:
+                            info["author"] = parts[-1]
+                    elif role == 'committer':
+                        if firstpart.endswith('-mail'):
+                            info["committer_email"] = parts[-1]
+                        elif firstpart.endswith('-time'):
+                            info["committer_date"] = int(parts[-1])
+                        elif role == firstpart:
+                            info["committer"] = parts[-1]
                     # END distinguish mail,time,name
                 else:
                     # handle
@@ -980,32 +973,34 @@ class InfoDC(Dict[str, Union[str, int]]):
                         info['summary'] = parts[-1]
                     elif firstpart == '':
                         if info:
-                            sha = info.id
+                            sha = info['id']
                             c = commits.get(sha)
                             if c is None:
                                 c = Commit(self, hex_to_bin(sha),
-                                           author=Actor._from_string(f"{info.author} {info.author_email}"),
-                                           authored_date=info.author_date,
-                                           committer=Actor._from_string(f"{info.committer} {info.committer_email}"),
-                                           committed_date=info.committer_date)
+                                           author=Actor._from_string(f"{info['author']} {info['author_email']}"),
+                                           authored_date=info['author_date'],
+                                           committer=Actor._from_string(
+                                               f"{info['committer']} {info['committer_email']}"),
+                                           committed_date=info['committer_date'])
                                 commits[sha] = c
                             blames[-1][0] = c
                             # END if commit objects needs initial creation
+
                             if blames[-1][1] is not None:
+                                line: str | bytes
                                 if not is_binary:
                                     if line_str and line_str[0] == '\t':
                                         line_str = line_str[1:]
-
-                                    blames[-1][1].append(line_str)
+                                    line = line_str
                                 else:
+                                    line = line_bytes
                                     # NOTE: We are actually parsing lines out of binary data, which can lead to the
                                     # binary being split up along the newline separator. We will append this to the
                                     # blame we are currently looking at, even though it should be concatenated with
                                     # the last line we have seen.
-                                    blames[-1][1].append(line_bytes)
-                            # end handle line contents
+                                blames[-1][1].append(line)
 
-                            info.id = sha
+                            info = {'id': sha}
                         # END if we collected commit info
                     # END distinguish filename,summary,rest
                 # END distinguish author|committer vs filename,summary,rest