'''Check if directory exists, if not, create it'''importos# You should change 'test' to your preferred folder.MYDIR = ("test") CHECK_FOLDER = os.path.isdir(MYDIR)# If folder doesn't exist, then create it.ifnotCHECK_FOLDER: os.makedirs(MYDIR)print("created folder : ", MYDIR)el...
importosdefifexists(path):returnos.path.exists(path)# 判断文件是否存在file_path='data.txt'ififexists(file_path):print("文件存在")else:print("文件不存在")# 判断目录是否存在dir_path='data'ififexists(dir_path):print("目录存在")else:print("目录不存在") 1. 2. 3. 4. 5. 6. 7. 8. ...
在Python中,ifexists是一个用于检查某个变量或对象是否存在的函数。它返回一个布尔值,如果变量存在,则返回True;否则,返回False。 语法 ifexists函数的语法如下所示: ifexists(variable) 1. 其中,variable是要检查的变量或对象。 使用ifeixsts的例子 下面是一些使用ifexists函数的例子,以帮助你更好地理解它的用法。
path.isdir('/Techstricks/Documents/Python/') print(dir) OutputTrue False Using pathlib.Path.exists() Python 3.4 and above versions have a pathlib Module to handle the file systems, which uses an object-oriented approach to check whether a file exists or not. The module comes under Python’...
Checking if a File Exists This is arguably the easiest way to check if both a file existsandif it is a file. importos os.path.isfile('./file.txt')# Trueos.path.isfile('./link.txt')# Trueos.path.isfile('./fake.txt')# Falseos.path.isfile('./dir')# Falseos.path.isfile('....
Learn how to easily check if a file exists in Python with this comprehensive guide. Find out the best practices and simple methods here.
!/usr/bin/env python -*- coding: utf-8 -*- import os ls = os.linesep #为os.linesep取了一个别名 当前平台的换行符 while True:fname = raw_input('input a file name to save filenames:%s' % ls)if os.path.exists(fname):#os.path.exists（path）判断path是否存在 print ('...
Describe the bug The datasets.load_dataset returns a ValueError: Unknown split "validation". Should be one of ['train', 'test']. when running load_dataset(local_data_dir_path, split="validation") even if the validation sub-directory exis...
#!/bin/usr/env python3 __author__ = 'nxz' import os import argparse MESSAGE = '%s 文件夹已经存在' def create_dir(work_dir, createdir): try: for dir in createdir: if not os.path.exists(os.path.join(work_dir, dir)): os.makedirs(os.path.join(work_dir, dir)) print("%s 文件夹...
os.path.expanduser('~')表示用户主目录。参见:https://docs.python.org/2.7/library/os.path.html?highlight=expanduser#os.path.expanduser #-*- coding: utf-8 -*-importosdefcreate_dir_if_not_there(dir):""" Checks to see if a directory exists in the users home directory, if not then creat...