Python学习笔记 OS模块

2019-04-14 17:50发布

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''' Created on 2011-8-1 @author: Killua @E-mail:killua_hzl@163.com @Description: ''' #!/usr/bin/env python3 import os import time #使用os模块进行文本替换 def context_replace(file, search_for, replace_with, new_file = 'new_file'): try: #remove old temp os.remove(new_file) except os.error: pass #open files fi = open(file) fo = open(new_file, 'w') #replace context for line in fi.readlines(): fo.write(line.replace(search_for, replace_with)) #close files fi.close() fo.close() #使用 os 列出目录下的文件 def file_list(filepath): for filename in os.listdir(filepath): print(filename) #使用 os 模块查看当前工作目录 def current_word_dir(): print("Currnet Directory:" + os.getcwd()) #使用 os 模块创建/删除目录 def make_dir(dir_name): os.mkdir(dir_name) def delete_dir(dir_name): if not os.path.isdir(dir_name): print("It's not a directory") return else: if len(os.listdir(dir_name)) == 0: os.rmdir(dir_name) else: print("The directory you want to delete is not empty,") #使用 os 模块获取文件属性 def get_file_info(filename): file_state = os.stat(filename) mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime = file_state print("size:", size, "bytes") print("owner:", uid, gid) print("created:", time.ctime(ctime)) print("last accessed:", time.ctime(atime)) print("last modified:", time.ctime(mtime)) print("mode:", oct(mode)) print("inode/dev", ino, dev) #使用 os 执行操作系统命令 def os_command_excute(cmd): os_name = os.name if os_name == "nt": print("Windows Command") else: print("Unix/Linux Command") os.system(cmd) #Test def main(): #===Just For Test=== #context_replace("sample", 'a', 'A') #file_list('/') #current_word_dir() #make_dir('sample_dir') #delete_dir('sample_dir') #get_file_info("sample") os_command_excute("ls -l") if __name__ == "__main__": main()

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