Unused imports, PEP8

src/yunohost/data_migrations/0003_migrate_to_stretch.py

@@ -1,10 +1,5 @@
 import glob
 import os
-import requests
-import base64
-import time
-import json
-import errno
 from shutil import copy2
 
 from moulinette import m18n, msettings
@@ -16,7 +11,6 @@ from moulinette.utils.filesystem import read_file
 from yunohost.tools import Migration
 from yunohost.app import unstable_apps
 from yunohost.service import (_run_service_command,
-                              service_regen_conf,
                               manually_modified_files,
                               manually_modified_files_compared_to_debian_default)
 from yunohost.utils.filesystem import free_space_in_directory
@@ -26,6 +20,7 @@ logger = getActionLogger('yunohost.migration')
 
 YUNOHOST_PACKAGES = ["yunohost", "yunohost-admin", "moulinette", "ssowat"]
 
+
 class MyMigration(Migration):
     "Upgrade the system to Debian Stretch and Yunohost 3.0"
 
@@ -113,7 +108,7 @@ class MyMigration(Migration):
         # Check system is up to date
         # (but we don't if 'stretch' is already in the sources.list ...
         # which means maybe a previous upgrade crashed and we're re-running it)
-        if not " stretch " in read_file("/etc/apt/sources.list"):
+        if " stretch " not in read_file("/etc/apt/sources.list"):
             self.apt_update()
             apt_list_upgradable = check_output("apt list --upgradable -a")
             if "upgradable" in apt_list_upgradable:
@@ -232,7 +227,6 @@ class MyMigration(Migration):
 
         os.system(command)
 
-
     def apt_dist_upgrade(self, conf_flags):
 
         # Make apt-get happy
@@ -264,7 +258,6 @@ class MyMigration(Migration):
             # enabled if the user explicitly add --verbose ...
             os.system(command)
 
-
     # Those are files that should be kept and restored before the final switch
     # to yunohost 3.x... They end up being modified by the various dist-upgrades
     # (or need to be taken out momentarily), which then blocks the regen-conf
@@ -304,4 +297,3 @@ class MyMigration(Migration):
         for f in self.files_to_keep:
             dest_file = f.strip('/').replace("/", "_")
             copy2(os.path.join(tmp_dir, dest_file), f)
-