[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

repo2docker/app.py

@@ -572,7 +572,6 @@ def initialize(self, *args, **kwargs):
         if self.volumes and not self.run:
             raise ValueError("Cannot mount volumes if container is not run")
 
-
     def run_image(self):
         """Run docker container from built image
 

repo2docker/docker.py

@@ -2,13 +2,13 @@
 Docker container engine for repo2docker
 """
 
-from argparse import ArgumentError
 import json
 import os
 import shutil
 import subprocess
 import tarfile
 import tempfile
+from argparse import ArgumentError
 from contextlib import ExitStack, contextmanager
 from pathlib import Path
 
@@ -110,7 +110,9 @@ def build(
         args = ["docker", "buildx", "build", "--progress", "plain"]
         if load:
             if push:
-                raise ValueError("Setting push=True and load=True is currently not supported")
+                raise ValueError(
+                    "Setting push=True and load=True is currently not supported"
+                )
             args.append("--load")
 
         if push: