chore: improve the log

Author: soulteary

python_coreml_stable_diffusion/web.py

@@ -96,12 +96,13 @@ def infer(prompt, steps):
         init(args)
 
 except ModuleNotFoundError as moduleNotFound:
+    print(f'Found that `gradio` is not installed, try to install it automatically')
     try:
         import subprocess
         import sys
 
         subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'gradio'])
-        print(f'Successfully installed package `gradio` automatically!')
+        print(f'Successfully installed missing package `gradio`.')
+        print(f'Now re-execute the command :D')
     except subprocess.CalledProcessError:
-        print(f'Automatic package installation failed, try manually executing `pip install gradio`')
-    raise ModuleNotFoundError('package `gradio` not found, you can install via `pip install gradio`.') from moduleNotFound
+        print(f'Automatic package installation failed, try manually executing `pip install gradio`, then retry the command again.')