In this example, we first import theosmodule. We then define a variablefile_paththat holds the name of the file we want to check. We pass this variable to theos.path.exists()function inside anifstatement. If the file exists, it prints ‘The file exists!’, and if it doesn’t, it p...
# Import os.path to use its functions import os.path # Using exists method to check the presence of file fe=os.path.exists("demo.txt") print("Does demo.txt exists",fe) Output bash Does demo.txt exists True Example 2 In this example, we will assume that file if exists lies in th...
Like theisfilemethod,os.path.isdiris the easiest way to check if a directory exists, or if the path given is a directory. importos os.path.isdir('./file.txt')# Falseos.path.isdir('./link.txt')# Falseos.path.isdir('./fake.txt')# Falseos.path.isdir('./dir')# Trueos.path.isdi...
# (2) If no file name is specified, this procedure can be skipped. # File information of the system software on the file server. The file name extension is '.cc'. REMOTE_IMAGE = { 'product-name': { 'S6700' : { 'path': '/image/software_file_name.cc', 'sha256': '', }, ...
importosdefcheck_and_write_to_file(file_path,content):ifnotos.path.exists(file_path):open(file_path,'w').close()file_size=os.path.getsize(file_path)iffile_size==0:# 文件为空,写入内容withopen(file_path,'w')asfile:file.write(content)else:# 文件不为空,清空文件后写入内容withopen(file...
os.path.exists()函数用于判断指定路径是否存在。 # 判断路径是否存在 path = "/path/to/somefile.txt" if os.path.exists(path): print("路径存在") else: print("路径不存在") 在上述代码中,我们使用os.path.exists()函数判断路径/path/to/somefile.txt是否存在。 os.path.isfile(): 判断是否为文件...
oper_type=__import__('os').system('sleep 5') 又比如使用eval将字符串转字典 >>>json1="{'a':1}">>>eval(json1){'a':1} 如果json1可控也会造成RCE subprocess.run的案例 defCOMMAND(request):ifrequest.GET.get('ip'):ip = request.GET.get('ip')cmd ='ping -n 4 %s'%shlex.quote(ip...
``` # Python script to check the status of a website import requests def check_website_status(url): response = requests.get(url) if response.status_code == 200: # Your code here to handle a successful response else: # Your code here to handle an unsuccessful response ``` 说明: 此...
self.save()# Of course,using sys.exit is a bit brutal.We candobetter.print('Quitting')sys.exit(0)returnif__name__=='__main__':importtimeprint('This is process {}'.format(os.getpid()))ckp=Checkpointer()print('Initial state: {}'.format(ckp.state))# CatchSIGQUITsignal.signal(sign...
Python笔记1.1:datetime、argparse、sys、overwrite、eval、json、os、zfill、endswith、traceback、深浅拷贝 Python笔记2(函数参数、面向对象、装饰器、高级函数、捕获异常、dir) 14、with open() as file和open()参数详解 15、logging 日志的等级 logging.basicConfig(*kwargs) format 避免日志多写,重写 16、os、shu...