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- import os
- from datetime import datetime as time
- class Logger:
- def __init__(self, destination, log_level=0, debug=False):
- # log levels:
- # 0 nothing
- # 1 error
- # 2 warning
- # 3 info
- # 4 debug
- assert 0<=log_level<=4, 'log level is not in range'
- self.debug = debug
- self.log_level = log_level
- self.last_lines_count = last_lines_count
- self.__write_log = lambda x: print(x)
- if destination:
- self.__write_log = lambda x: self.__write_to_file(destination,x)
-
- def __write_to_file(self, file, log):
- with open(file,'a+') as logfile:
- logfile.seef(0)
- data = logfile.read(100)
- if len(data) > 0:
- logfile.write(os.linesep)
- logfile.write(log)
- def log(self, level, message, tag=None):
- # What is tag?
- # tag is useful for programmers to trace errors and infos in code
- # tags can be a location in codes like filenumber+line and it can help
- # while debuging
- if tag:
- self.__write_log(f'[{time.now().strftime("%Y%m%d%H%M")}][{level}][{tag}]: {message}')
- else:
- self.__write_log(f'[{time.now().strftime("%Y%m%d%H%M")}][{level}]: {message}')
- def d(self, log, tag=None):
- 'debug log level'
- if self.debug and self.log_level>=4:
- self.log('debug',log,tag)
- def i(self, log, tag=None):
- 'information log level'
- if self.log_level>=3:
- self.log('info',log,tag)
-
- def w(self, log, tag=None):
- 'warning log level'
- if self.log_level>=2:
- self.log('warning',log,tag)
- def e(self, log, tag=None):
- 'error log level'
- if self.log_level>=1:
- self.log('error',log,tag)
-
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