use system hook for mypy; fix raised issues (#6851)

.pre-commit-config.yaml

@@ -1,5 +1,5 @@
 ci:
-  skip: [pylint, dvc-pre-commit]
+  skip: [mypy, pylint, dvc-pre-commit]
 
 repos:
   - hooks:
@@ -34,19 +34,14 @@ repos:
           - flake8-string-format
     repo: https://gitlab.com/pycqa/flake8
     rev: 3.9.2
-  - hooks:
-      -  id: mypy
-         language_version: python3
-         files: ^dvc/
-         additional_dependencies:
-           - types-requests
-           - types-paramiko
-           - types-tabulate
-           - types-toml
-    repo: https://github.com/pre-commit/mirrors-mypy
-    rev: 'v0.910-1'
   - repo: local
     hooks:
+    - id: mypy
+      name: mypy
+      entry: mypy
+      files: ^dvc/
+      language: system
+      types: [python]
     - id: pylint
       name: pylint
       entry: pylint

dvc/repo/experiments/init.py

@@ -85,8 +85,10 @@ def _prompts(keys: Iterable[str], defaults: Dict[str, OptStr]):
         else:
             prompt_cls = SkippablePrompt
         kwargs = {"default": defaults[key]} if key in defaults else {}
-        prompt = PROMPTS.get(key)
-        value = prompt_cls.ask(prompt, console=ui.error_console, **kwargs)
+        prompt = PROMPTS[key]
+        value = prompt_cls.ask(  # type: ignore[call-overload]
+            prompt, console=ui.error_console, **kwargs
+        )
         yield key, value
 
 

dvc/scm/git/backend/dulwich/__init__.py

@@ -85,7 +85,7 @@ class DulwichBackend(BaseGitBackend):  # pylint:disable=abstract-method
     from .asyncssh_vendor import AsyncSSHVendor
 
     # monkeypatch dulwich client's default SSH vendor to use asyncssh
-    client.get_ssh_vendor = AsyncSSHVendor
+    client.get_ssh_vendor = AsyncSSHVendor  # type: ignore[assignment]
 
     # Dulwich progress will return messages equivalent to git CLI,
     # our pbars should just display the messages as formatted by dulwich

dvc/scm/git/backend/gitpython.py

@@ -148,7 +148,8 @@ class GitPythonBackend(BaseGitBackend):  # pylint:disable=abstract-method
         rev: Optional[str] = None,
         shallow_branch: Optional[str] = None,
     ):
-        import git
+        from git import Repo
+        from git.exc import GitCommandError
 
         ld_key = "LD_LIBRARY_PATH"
 
@@ -170,7 +171,7 @@ class GitPythonBackend(BaseGitBackend):  # pylint:disable=abstract-method
                 url = f"file://{url}"
             with TqdmGit(desc="Cloning", unit="obj") as pbar:
                 clone_from = partial(
-                    git.Repo.clone_from,
+                    Repo.clone_from,
                     url,
                     to_path,
                     env=env,  # needed before we can fix it in __init__
@@ -182,7 +183,7 @@ class GitPythonBackend(BaseGitBackend):  # pylint:disable=abstract-method
                 else:
                     tmp_repo = clone_from(branch=shallow_branch, depth=1)
             tmp_repo.close()
-        except git.exc.GitCommandError as exc:  # pylint: disable=no-member
+        except GitCommandError as exc:  # pylint: disable=no-member
             raise CloneError(url, to_path) from exc
 
         # NOTE: using our wrapper to make sure that env is fixed in __init__
@@ -191,7 +192,7 @@ class GitPythonBackend(BaseGitBackend):  # pylint:disable=abstract-method
         if rev:
             try:
                 repo.checkout(rev)
-            except git.exc.GitCommandError as exc:  # pylint: disable=no-member
+            except GitCommandError as exc:  # pylint: disable=no-member
                 raise RevError(
                     "failed to access revision '{}' for repo '{}'".format(
                         rev, url