Pass variable from main.py to lib class?

[misterlisty]

I have the following... how do access or pass rtc to the lib class logging.py?
main.py
..
rtc=RTC()

/lib/logging.py
from machine import RTC

class LOGGING:
    global bdebug
    global rtc #not woking
    
    def logger(msg,showtime=True,level=3,topic="",bdebug=True,debuglevel=3): #error0,warning1,debug2,info3,verbose4
        if bdebug and debuglevel>=level:
            if showtime:
                print(str(rtc.now()[0])+str(rtc.now()[1])+str(rtc.now()[2])+"T"+str(rtc.now()[3])+str(rtc.now()[4])+str(rtc.now()[5])," | ",msg)
                # send_msg("outbox",msg)
            else:
                print(msg)
                # send_msg("outbox",msg)

******** NameError: name 'rtc' is not defined ***********************

[Stevo52]

@misterlisty Have you got an rtc = RTC() statement in your code? You need to have that to make any calls to rtc.now (Note the upper and lower cases in your code).

utime.localtime() might also be useful to you...

[dough]

@misterlisty

A technique to pass object references from main.py to other modules is to create a 'dummy' module to pass items like rtc and i2c. To make this work you first need to create an empty file called 'shared.py'. Then you can use it as follows:

in main.py --

from machine import RTC, I2C
import shared

rtc = RCT()
i2c = I2C(0, I2C.MASTER)
shared.rtc = rtc
share.i2c = i2c

---

Then in the module you want to reference/use rtc or i2c, include an import to shared as follows:

import shared

shared.rtc.now()
shared.i2c.scan()