fix(backup): pylint fixes

backup/backup.py

@@ -6,11 +6,10 @@
 # |_____/ \___|\__,_|___/ \_/\_/ |_|_| |_| |_|_| |_| |_|\___|_|
 
 import json
-import itertools
 
 from redbot.core import commands
 from redbot.core.bot import Red
-from redbot.core.utils.chat_formatting import text_to_file
+from redbot.core.utils.chat_formatting import error, text_to_file
 
 class Backup(commands.Cog):
     """A utility to make reinstalling repositories and cogs after migrating the bot far easier."""
@@ -33,10 +32,10 @@ class Backup(commands.Cog):
         """Export your installed repositories and cogs to a file."""
         downloader = ctx.bot.get_cog("Downloader")
         if downloader is None:
-            await ctx.send(f"You do not have the `Downloader` cog loaded.\nPlease run `{ctx.prefix}load downloader` and try again.")
+            await ctx.send(error(f"You do not have the `Downloader` cog loaded. Please run `{ctx.prefix}load downloader` and try again."))
             return
 
-        all_repos = list(downloader._repo_manager.repos)
+        all_repos = list(downloader._repo_manager.repos) # pylint: disable=protected-access
 
         export_data = []
 
@@ -56,3 +55,18 @@ class Backup(commands.Cog):
             export_data.append(repo_dict)
 
         await ctx.send(file=text_to_file(json.dumps(export_data, indent=4), 'backup.json'))
+
+    @backup.command(name='import')
+    @commands.is_owner()
+    async def backup_import(self, ctx: commands.Context, json: str = None):
+        """Import your installed repositories and cogs from an export."""
+        if json is None:
+            json = await ctx.message.attachments[0].read()
+            if json is None:
+                await ctx.send(error("Please provide a valid JSON export."))
+                return
+
+        downloader = ctx.bot.get_cog("Downloader")
+        if downloader is None:
+            await ctx.send(error(f"You do not have the `Downloader` cog loaded. Please run `{ctx.prefix}load downloader` and try again."))
+            return