Reread Setting.py while the program is running.

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 07:33:26 GMT

Wolli01 — Fri, 18 Oct 2019 07:33:26 GMT

Reread Setting.py while the program is running.
How can I reload a setting file which I read in by Import Setting at the beginning of the program without leaving the main.py or starting a reset?

Problem: I have a setting file that I can update online. However, the new data is not taken over in the variables, but only when I reboot.
How can I do it without restarting.
I am using a While True loop in the main.py.

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Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 08:03:50 GMT

robert-hh — Fri, 18 Oct 2019 08:03:50 GMT

@Wolli01 I use this little function:

#
# reload module: 
#
def reload(mod):
    import sys
    mod_name = mod.__name__
    del sys.modules[mod_name]
    return __import__(mod_name)

You would call it with:
reload(Setting)

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 08:07:33 GMT

Wolli01 — Fri, 18 Oct 2019 08:07:33 GMT

@robert-hh Thank You

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 08:52:20 GMT

Wolli01 — Fri, 18 Oct 2019 08:52:20 GMT

@robert-hh Wie rufe ich das auf?

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 10:44:22 GMT

robert-hh — Fri, 18 Oct 2019 10:44:22 GMT

@Wolli01
Preload:
from reload import *
then:
reload(Setting)

Instead of this function, you can also simply use that sequence directly:

import sys
del sys.modules['Setting']
import Setting

You have to take care, in which namespace you are calling it.

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 10:20:06 GMT

Wolli01 — Fri, 18 Oct 2019 10:20:06 GMT

@robert-hh
import sys
del sys.modules('settings')
time.sleep(1)
import settings

File "main.py", line 290, in
SyntaxError: can't delete expression

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 10:43:37 GMT

robert-hh — Fri, 18 Oct 2019 10:43:37 GMT

@Wolli01 Yes. Obviously it is:

del sys.modules['settings']

since sys.modules is a dictionary. This del does not delete the old module, but only allows to reload it.

Reply to Reread Setting.py while the program is running. on Fri, 18 Oct 2019 11:10:00 GMT

Wolli01 — Fri, 18 Oct 2019 11:10:00 GMT

@robert-hh
That's how it works perfectly!
Thank you very much.

            import sys
            del sys.modules['settings']
            time.sleep(1)
            import settings