dvc: automatically reorder imports

scripts/ci/check_patch.sh

@@ -3,11 +3,10 @@
 set -x
 set -e
 
-pip install Pygments collective.checkdocs flake8 'black==19.3b0'
+pip install Pygments collective.checkdocs pre-commit 
 
 # stop the build if there are any readme formatting errors
 python setup.py checkdocs
 
-# stop the build if there are any black or flake8 errors
-black ./ --check
-flake8 ./
+# stop the build if there are any formatting errors
+pre-commit run --all-files

scripts/hooks/hook-Crypto.py

@@ -6,7 +6,6 @@
 #
 # The full license is in the file COPYING.txt, distributed with this software.
 # -----------------------------------------------------------------------------
-
 """
 Hook for PyCryptodome library: https://pypi.python.org/pypi/pycryptodome
 
@@ -27,9 +26,8 @@ triggered also when PyCrypto is installed, so it must be tested with both.
 Tested with PyCryptodome 3.5.1, PyCrypto 2.6.1, Python 2.7 & 3.6, Fedora &
 Windows
 """
-
-import os
 import glob
+import os
 
 from PyInstaller.compat import EXTENSION_SUFFIXES
 from PyInstaller.utils.hooks import get_module_file_attribute