From: Andrew Udvare <audvare@gmail.com>
Subject: [PATCH] Make the s (server) command optional

commands/__init__.py imports every command eagerly, and s_command pulls in
gradio and asyncer. Those are needed by nothing else, so without them the
whole CLI fails to start rather than just the one command that needs them.

cli.py already degrades gracefully when click is missing; this applies the
same treatment to the server command.

diff --git a/rembg/commands/__init__.py b/rembg/commands/__init__.py
index a6091b3..45d4fff 100644
--- a/rembg/commands/__init__.py
+++ b/rembg/commands/__init__.py
@@ -5,11 +5,18 @@ from .d_command import d_command
 from .i_command import i_command
 from .m_command import m_command
 from .p_command import p_command
-from .s_command import s_command
+
+try:
+    from .s_command import s_command
+except ImportError:
+    # Needs gradio and asyncer, which the other commands do not.
+    s_command = None
 
 command_functions.append(b_command)
 command_functions.append(d_command)
 command_functions.append(i_command)
 command_functions.append(m_command)
 command_functions.append(p_command)
-command_functions.append(s_command)
+
+if s_command is not None:
+    command_functions.append(s_command)