From c88e3ab17ee0672236794735ea28793a467fd130 Mon Sep 17 00:00:00 2001
From: Tiara Rodney <t.rodney@inno-on.de>
Date: Sat, 2 Apr 2022 19:51:05 +0200
Subject: [PATCH] fix: catch standalone command exception

gevent will not be installed by default, therefore print a message
explaining required steps
---
 src/httpaste/__main__.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/httpaste/__main__.py b/src/httpaste/__main__.py
index 4a6aae4..f019a95 100644
--- a/src/httpaste/__main__.py
+++ b/src/httpaste/__main__.py
@@ -30,7 +30,14 @@ def command_standalone(**kwargs):
     """
 
     from httpaste import load_config, get_flask_app
-    from gevent.pywsgi import WSGIServer
+
+    try:
+        from gevent.pywsgi import WSGIServer
+    except ImportError as e:
+        raise ImportError(' '.join((
+            'gevent is currently not installed.',
+            'Please install it by running \'python3 -m pip install gevent\'.'
+        ))) from e
 
     config, server_config = load_config(kwargs.get('config_path'))