From c233296dc7b544abb7f2ea950a179000ff90ef6c Mon Sep 17 00:00:00 2001
From: ifrit98 <ifrit98@gmail.com>
Date: Tue, 12 Dec 2023 18:28:04 +0000
Subject: [PATCH 1/2] print help message on error for subcommands

---
 bittensor/cli.py | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/bittensor/cli.py b/bittensor/cli.py
index b0e16f9f75..e8090dc2d8 100644
--- a/bittensor/cli.py
+++ b/bittensor/cli.py
@@ -135,6 +135,20 @@
 }
 
 
+class CLIErrorParser(argparse.ArgumentParser):
+    """
+    Custom ArgumentParser for better error messages.
+    """
+
+    def error(self, message):
+        """
+        This method is called when an error occurs. It prints a custom error message.
+        """
+        sys.stderr.write(f"Error: {message}\n")
+        self.print_help()
+        sys.exit(2)
+
+
 class cli:
     """
     Implementation of the Command Line Interface (CLI) class for the Bittensor protocol.
@@ -191,7 +205,7 @@ def __create_parser__() -> "argparse.ArgumentParser":
             argparse.ArgumentParser: An argument parser object for Bittensor CLI.
         """
         # Define the basic argument parser.
-        parser = argparse.ArgumentParser(
+        parser = CLIErrorParser(
             description=f"bittensor cli v{bittensor.__version__}",
             usage="btcli <command> <command args>",
             add_help=True,
@@ -283,4 +297,4 @@ def run(self):
             console.print(
                 f":cross_mark:[red]Unknown command: {self.config.command}[/red]"
             )
-            sys.exit()
+            sys.exit()
\ No newline at end of file

From b11a5c1e37c77d2d7f6c40310f93208c788b626e Mon Sep 17 00:00:00 2001
From: ifrit98 <ifrit98@gmail.com>
Date: Tue, 12 Dec 2023 18:32:09 +0000
Subject: [PATCH 2/2] black

---
 bittensor/cli.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bittensor/cli.py b/bittensor/cli.py
index e8090dc2d8..a8d51fe40c 100644
--- a/bittensor/cli.py
+++ b/bittensor/cli.py
@@ -297,4 +297,4 @@ def run(self):
             console.print(
                 f":cross_mark:[red]Unknown command: {self.config.command}[/red]"
             )
-            sys.exit()
\ No newline at end of file
+            sys.exit()