basic
1個py檔就是一個模組, 一個模組可以有多個class, 一個class可以有多個method
套件: 一個資料夾, 裡面有__init__.py, 這個資料夾就是一個套件
PYTHONPATH: 環境變數, 設定套件的路徑
- 在cmd中設定
- 可以用 print(sys.path) 看 ex: ['/workspaces/python', '/usr/local/lib/python39.zip', '/usr/local/lib/python3.9', '/usr/local/lib/python3.9/lib-dynload', '/usr/local/lib/python3.9/site-packages']
- 沒有的話可以用 sys.path.append('路徑') 加入 or export PYTHONPATH=$PYTHONPATH:/home/xxx/yyy
- 在CRONJOB中 要特別注意, 因為吃的設定不同, 所以要特別設定, 不然會找不到路徑
try except: 例外處理, 有錯誤就會跳到except, 沒錯誤就會繼續執行
try:
# do something
except Exception as e:
# do something
error_class = e.__class__.__name__ # 引發錯誤的 class
detail = e.args[0] # 得到詳細的訊息
cl, exc, tb = sys.exc_info() # 得到錯誤的完整資訊 Call Stack
lastCallStack = traceback.extract_tb(tb)[-1] # 取得最後一行的錯誤訊息
fileName = lastCallStack[0] # 錯誤的檔案位置名稱
lineNum = lastCallStack[1] # 錯誤行數
funcName = lastCallStack[2] # function 名稱
# generate the error message
errMsg = "Exception raise in file: {}, line {}, in {}: [{}] {}. Please contact the member who is the person in charge of project!".format(fileName, lineNum, funcName, error_class, detail)
python 3.6 之後的版本, dict 是有順序的, 但是在3.6之前的版本是沒有順序的
logger dictconfig 設定
- 用dictconfig設定, 可以設定多個handler, 但是要注意, 如果有設定多個handler, 一定要設定root的handler, 不然會沒有log
- 可以參考 https://cloud.tencent.com/developer/article/1772559
- 可以參考 https://docs.python.org/3/library/logging.config.html
- https://docs.python.org/3/library/logging.config.html
- https://docs.python.org/3/library/logging.handlers.html#timedrotatingfilehandler
- https://docs.python.org/zh-cn/3.7/library/logging.html
- filerotatinghandler: file 不要叫 log.txt rotate 時會發生問題
study.py
#!/usr/bin/env python
# -*- coding:utf-8 -*-
'''
@CreateTime: 2020/12/29 14:08
@Author : shouke
'''
import logging
import logging.config
LOGGING_CONFIG = {
"version": 1,
"formatters": {
"default": {
'format':'%(asctime)s %(filename)s %(lineno)s %(levelname)s %(message)s',
},
"plain": {
"format": "%(message)s",
},
},
"handlers": {
"console": {
"class": "logging.StreamHandler",
"level": "INFO",
"formatter": "default",
},
"console_plain": {
"class": "logging.StreamHandler",
"level":logging.INFO,
"formatter": "plain"
},
"file":{
"class": "logging.FileHandler",
"level":20,
"filename": "./log.log",
"formatter": "default",
}
},
"loggers": {
"console_logger": {
"handlers": ["console"],
"level": "INFO",
"propagate": False,
},
"console_plain_logger": {
"handlers": ["console_plain"],
"level": "DEBUG",
"propagate": False,
},
"file_logger":{
"handlers": ["file"],
"level": "INFO",
"propagate": False,
}
},
"disable_existing_loggers": True,
}
# 測試
logging.config.dictConfig(LOGGING_CONFIG)
logger = logging.getLogger("console_logger")
logger.debug('debug message')
logger.info('info message')
logger.warn('warning message')
logger.error('error message')
logger.critical('critical message')
log.py
import os
import sys
import yaml
import traceback
import inspect
import logging
import logging.config
from datetime import datetime as dt
class Logger:
def __init__(self, log_name = None, logger=None):
caller_frame = inspect.stack()[1]
self.package_name = os.path.relpath(caller_frame.filename)
self.caller_function_name = caller_frame[3]
self.check_dir_exist()
# self.check_dir_exist()
# self.create_logpath(package_name)
def check_dir_exist(self):
# replace package_name \ or / to _
package_name = self.package_name.replace('\\', '_').replace('/', '_').replace('.py', '')
print(package_name)
print(self.caller_function_name)
self.create_logpath(package_name)
def create_logpath(self, package_name):
# create log folder if not exist
if not os.path.exists('log'):
os.mkdir('log')
# create log module folder if not exist
if not os.path.exists('log/' + package_name):
open('log/' + package_name + '.log', 'a').close()
def generate_log(self, logger = 'time_rotating_file_logger'):
LOGGING_CONFIG = {
"version": 1,
"formatters": {
"default": {
'format':'%(asctime)s %(filename)s %(lineno)s %(levelname)s %(message)s',
},
"plain": {
"format": "%(message)s",
},
},
"handlers": {
"console": {
"class": "logging.StreamHandler",
"level": "DEBUG",
"formatter": "default",
},
"console_plain": {
"class": "logging.StreamHandler",
"level": "DEBUG",
"formatter": "plain"
},
"file":{
"class": "logging.FileHandler",
"level":20,
"filename": "./log.txt",
"formatter": "default",
},
"time_rotating_file": {
"class": "logging.handlers.TimedRotatingFileHandler",
"level": "DEBUG",
"formatter": "default",
"filename": "./a.log",
"when": "D",
"interval": 1,
"backupCount": 7,
}
},
"loggers": {
"console_logger": {
"handlers": ["console"],
"level": "DEBUG",
"propagate": False,
},
"console_plain_logger": {
"handlers": ["console_plain"],
"level": "DEBUG",
"propagate": False,
},
"file_logger":{
"handlers": ["file", "console"],
"level": "INFO",
"propagate": False,
},
"time_rotating_file_logger": {
"handlers": ["time_rotating_file", "console"],
"level": "DEBUG",
"propagate": False,
}
},
"disable_existing_loggers": True,
}
logging.config.dictConfig(LOGGING_CONFIG)
return logging.getLogger(logger)
main.py
import sys
sys.path.append("C:\\Users\\NC22015\\projects\\playwright\\python")
from utils.log import Logger
def main():
logger = Logger('test')
logger.print_log()
def funcA():
logger = Logger('test')
log = logger.generate_log()
log.info('test dudududu dadada')
if __name__ == '__main__':
funcA()
try:
etc_home = os.getenv('ETC_HOME')
metric_file = os.path.join(etc_home, 'metrics_meta', '{}.yaml'.format(metric))
with open(metric_file) as fp:
metric_meta = yaml.safe_load(fp)
metric_meta = config[0]['log_home']['log_file']
呼叫dict value
r = {'date_list' :date_list,'qty_list': qty_list}
print(r.get('date_list'))
def f(x) -> int: 返回註解
return x