常用python日期、日志、获取内容循环的代码片段

缺乏、安全感 2022-07-16 13:55 132阅读 0赞

近段时间对shell脚本和python进行了梳理，将一些脚本中常用的内容，考虑多种方法整理出来，形成有用的代码片段，这样就可以在需要的时候直接使用，也可以用于备忘和思考。

> 本次整理的代码片段有： python中日期、时间常用获取方法； 记录处理日志的logging模块使用；从目录，文件，命名结果中，获取循环条件进行循环。
> 
> 我将这些有用的代码片段整理在一个Python脚本中了，并且测试可用。
> 
> 脚本内容如下：
> 
>     #!/usr/bin/env python
>     #_*_coding:utf8_*_
>     
>     #常用日期和时间
>     import datetime,time
>     today = datetime.date.today()
>     yesterday = datetime.date.today() - datetime.timedelta(days=1)
>     tomorrow = datetime.date.today() + datetime.timedelta(days=1)
>     
>     Today_nyr = int(datetime.datetime.strftime(today, '%Y%m%d'))
>     Yesterday_nyr = int(datetime.datetime.strftime(yesterday, '%Y%m%d'))
>     Tomorrow_nyr = int(datetime.datetime.strftime(tomorrow ,'%Y%m%d'))
>     
>     time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())) 
>     print "now time is {time}".format(time=time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
>     
>     print "normal type , today is {today} , yesterday is {yesterday} , tomorrow is {tommorrow} .".format(today=today,yesterday=yesterday,tommorrow=tomorrow)
>     print "nyr style , today is {today} , yesterday is {yesterday} , tommrrow is {tommorrow} .".format(today=Today_nyr,yesterday=Yesterday_nyr,tommorrow=Tomorrow_nyr)
>     #logging.info("now time is {time}".format(time=time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))))
>     #logging.info("normal type , today is {today} , yesterday is {yesterday} , tomorrow is {tommorrow} .".format(today=today,yesterday=yesterday,tommorrow=tomorrow))
>     #logging.info("nyr style , today is {today} , yesterday is {yesterday} , tommrrow is {tommorrow} .".format(today=Today_nyr,yesterday=Yesterday_nyr,tommorrow=Tomorrow_nyr))
>     
>     ###程序日志模块logging使用
>     import logging
>     import os
>     
>     THISFILEPATH = os.path.dirname(os.path.realpath(__file__))
>     logfile = '{path}/python_test_file.log'.format(path=THISFILEPATH)
>     logging.basicConfig(level=logging.DEBUG,
>                         format='%(asctime)s - %(filename)s - [line:%(lineno)d] %(levelname)s: %(message)s',
>                         datefmt='%Y-%m-%d %H:%M:%S %p',
>                         filename=logfile,
>                         #level=10,
>                         filemode='a')
>     
>     
>     
>     logging.info("This is a info.\n")
>     logging.warn("This is a warning.\n")
>     logging.error("This is a error.\n")
>     #logging.log("This is a log. \n\n")
>     logging.debug("This is a debug. \n\n")
>     logging.critical("This is a critical \n\n\n")
>     
>     
>     logging.info("now time is {time}".format(time=time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))))
>     logging.info("normal type , today is {today} , yesterday is {yesterday} , tomorrow is {tommorrow} .".format(today=today,yesterday=yesterday,tommorrow=tomorrow))
>     logging.info("nyr style , today is {today} , yesterday is {yesterday} , tommrrow is {tommorrow} .".format(today=Today_nyr,yesterday=Yesterday_nyr,tommorrow=Tomorrow_nyr))
>     
>     
>     ###从一个目录中，取出所有文件名进行循环
>     from subprocess import call
>     
>     File_Dir = "/tmp"
>     File_List = os.listdir(File_Dir)
>     for f in File_List:
>         if( f[0] == '.' ):
>             continue
>         else:
>             logging.info("{filename}".format(filename=f))
>     
>     ###读取一个文件的多行，进行循环
>     #文件读取方法一：
>     file = open("/tmp/3.txt")
>     while 1:
>         line = file.readline()
>         if not line:
>             break
>         logging.info("this line is :{line}".format(line=line))
>     
>     #文件读取方法二：
>     import fileinput
>     for line in fileinput.input("/tmp/3.txt"):
>         logging.info("this line is :{line}  .".format(line=line))
>     
>     #文件读取方法三：
>     file = open("/tmp/3.txt")
>     for line in file:
>         logging.info("this line is :{line}  .".format(line=line))
>     
>     
>     ###获取一个shell命令执行结果，进行循环
>     #获取命令方法一：
>     import subprocess
>     shell_cmd = "df -h | awk '{print $1}'"
>     p = subprocess.Popen("{cmd}".format(cmd=shell_cmd), shell=True, stdout=subprocess.PIPE)
>     out = p.stdout.readlines()
>     for line in out:
>         print line.strip()
>         logging.info(" file system is :{line}  .".format(line=line.strip()))
>     
>     
>     #获取命令方法二：
>     for line in subprocess.Popen("df -h | awk '{print $1}'",shell=True,stdout=subprocess.PIPE).stdout.readlines():
>         print line.strip()
>         logging.info(" file system is :{line}  .".format(line=line.strip()))
> 
>   
> 
> 
> 上面的脚本，可使用 python 3.py 直接执行。
> 
> 脚本执行结果如下：
> 
>     2017-03-02 16:48:43 PM - 3.py - [line:38] INFO: This is a info.
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:39] WARNING: This is a warning.
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:40] ERROR: This is a error.
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:42] DEBUG: This is a debug. 
>     
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:43] CRITICAL: This is a critical 
>     
>     
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:46] INFO: now time is 2017-03-02 16:48:43
>     2017-03-02 16:48:43 PM - 3.py - [line:47] INFO: normal type , today is 2017-03-02 , yesterday is 2017-03-01 , tomorrow is 2017-03-03 .
>     2017-03-02 16:48:43 PM - 3.py - [line:48] INFO: nyr style , today is 20170302 , yesterday is 20170301 , tommrrow is 20170303 .
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: 40001501_20170302.csv
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: proc_cpu_result
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: qaucli_022317-18_15_41.log
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: sfcbHttpSocket
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: 1.py
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: sfcbLocalSocket
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: 2.txt
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: null
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: 3.txt
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: 3.py
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: hsperfdata_root
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: updatehbaconf.sh.log
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: proc_cpu_detail.txt
>     2017-03-02 16:48:43 PM - 3.py - [line:60] INFO: python_test_file.log
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :1
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :2
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :3
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :4
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :5
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :6
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :7
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :8
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:69] INFO: this line is :9
>     
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :1
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :2
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :3
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :4
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :5
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :6
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :7
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :8
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:74] INFO: this line is :9
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :1
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :2
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :3
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :4
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :5
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :6
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :7
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :8
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:79] INFO: this line is :9
>       .
>     2017-03-02 16:48:43 PM - 3.py - [line:90] INFO:  file system is :Filesystem  .
>     2017-03-02 16:48:43 PM - 3.py - [line:90] INFO:  file system is :/dev/sda2  .
>     2017-03-02 16:48:43 PM - 3.py - [line:90] INFO:  file system is :tmpfs  .
>     2017-03-02 16:48:43 PM - 3.py - [line:90] INFO:  file system is :/dev/sda1  .
>     2017-03-02 16:48:43 PM - 3.py - [line:90] INFO:  file system is :/dev/sda5  .
>     2017-03-02 16:48:43 PM - 3.py - [line:96] INFO:  file system is :Filesystem  .
>     2017-03-02 16:48:43 PM - 3.py - [line:96] INFO:  file system is :/dev/sda2  .
>     2017-03-02 16:48:43 PM - 3.py - [line:96] INFO:  file system is :tmpfs  .
>     2017-03-02 16:48:43 PM - 3.py - [line:96] INFO:  file system is :/dev/sda1  .
>     2017-03-02 16:48:43 PM - 3.py - [line:96] INFO:  file system is :/dev/sda5  .
> 
>   
> 
> 
>   
>