subprocess.Popen get FileNotFoundError but works fine in debug mode

xxyzz · 01-01-2021, 08:10 AM

I get this error on calibre 5.8.1, macOS 11.1:

Code:

File "calibre_plugins.worddumb.database", line 72, in start_redis_server
    subprocess.Popen(['redis-server', '--dir', db_path])
  File "subprocess.py", line 854, in __init__
  File "subprocess.py", line 1702, in _execute_child
FileNotFoundError: [Errno 2] No such file or directory: 'redis-server'

But this code works well if I run it in the debug mode. The PATH must be different between these two modes.

kovidgoyal · 01-01-2021, 09:05 AM

The modes dont change the path. You are launching one from the terminal and one via launch services. The PATH in launch services is very different from in the terminal.

xxyzz · 01-01-2021, 09:50 PM

I change the code to use the absolute path and now it works.

01-01-2021, 08:10 AM	#1
xxyzz Evangelist Posts: 448 Karma: 3000000 Join Date: Nov 2020 Device: none	subprocess.Popen get FileNotFoundError but works fine in debug mode I get this error on calibre 5.8.1, macOS 11.1: Code: File "calibre_plugins.worddumb.database", line 72, in start_redis_server subprocess.Popen(['redis-server', '--dir', db_path]) File "subprocess.py", line 854, in __init__ File "subprocess.py", line 1702, in _execute_child FileNotFoundError: [Errno 2] No such file or directory: 'redis-server' But this code works well if I run it in the debug mode. The PATH must be different between these two modes.

01-01-2021, 09:50 PM	#3
xxyzz Evangelist Posts: 448 Karma: 3000000 Join Date: Nov 2020 Device: none	I change the code to use the absolute path and now it works. Last edited by xxyzz; 01-01-2021 at 11:04 PM.

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01-01-2021, 09:05 AM	#2
kovidgoyal creator of calibre Posts: 45,610 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The modes dont change the path. You are launching one from the terminal and one via launch services. The PATH in launch services is very different from in the terminal.

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