logger.py

from os import path, makedirs
from datetime import datetime
from enum import Enum

class LogLevel(Enum):
  OFF     = 1
  MINIMUM = 2
  NORMAL  = 3
  DEBUG   = 4

class Logger(object):   
  def __init__(self, full_name, log_level=LogLevel.DEBUG):
    module_name = path.splitext(path.basename(full_name))[0]
    self.log_name = module_name + '.log'
    logs_folder = 'logs' 
    if not path.exists(logs_folder):
      makedirs(logs_folder, exist_ok = True)

    self.log = path.join(logs_folder, self.log_name)
    self.create_log()
    
    self.logging_level = log_level

  def create_log(self):    
    with open(self.log, mode='w', encoding='utf-8') as log_file:
      log_file.write(self.get_date_time() + '\t\t*** Starting Log ***\n')
    log_file.close()
  
  def get_date_time(self):
    return datetime.now().strftime("%m-%d-%Y %H:%M:%S")

  def set_logging_level(self, level):
    self.logging_level = level

  def write_to_log(self, msg='', log_level=LogLevel.DEBUG):
    if log_level.value > self.logging_level.value:
      return
    
    with open(self.log, mode='a', encoding='utf-8') as log_file:
     
      if msg.startswith('\n'):
        msg = msg[1:]
        log_file.write(self.get_date_time() + '\n')
      
      msg = f'{log_level.name}: {msg}'
      if msg.endswith('\n'):
        log_file.write(self.get_date_time() + '\t\t' + msg)
        log_file.write(self.get_date_time() + '\n')
      else:
        log_file.write(self.get_date_time() + '\t\t' + msg + '\n')
    log_file.close()

'''if __name__== '__main__':   
  logger = Logger(__file__, log_level=LogLevel.NORMAL)

  logger.write_to_log('test regular', log_level=LogLevel.MINIMUM)
  logger.write_to_log('\ntest with newline leading', log_level=LogLevel.NORMAL)
  logger.write_to_log('ending with \n', log_level=LogLevel.NORMAL)
  logger.set_logging_level(LogLevel.DEBUG)
  logger.write_to_log('Final line', log_level=LogLevel.DEBUG)  
  full_path, ext = path.splitext(__file__)
  new_full_path = full_path + '-OTHER-' + ext
  
  another_logger = Logger(new_full_path, log_level=LogLevel.MINIMUM)    
  another_logger.write_to_log('Other module message', log_level=LogLevel.MINIMUM)'''