Print(f 'The file does not exist') Code language: PHP ( php ) The following example shows how to use the Path class from the pathlib module to check if the readme.txt file exists in the same folder of the program: from pathlib import Path If the file doesn’t exist, the is_file() method returns False. Then, instantiate a new instance of the Path class and initialize it with the file path that you want to check for existence: path = Path(path_to_file)įinally, check if the file exists using the is_file() method: path. If you’re not familiar with object-oriented programming, check out the Python OOP section.įirst, import the Path class from the pathlib module: from pathlib import Path Code language: JavaScript ( javascript ) The pathlib module allows you to manipulate files and folders using the object-oriented approach. Python introduced the pathlib module since the version 3.4. To make the call to the exists() function shorter and more obvious, you can import that function and rename it to file_exists() function like this: from os.path import exists as file_existsįile_exists( 'readme.txt') Code language: JavaScript ( javascript ) 2) Using the pathlib module to check if a file exists Otherwise, you’ll see False on the screen: False Code language: PHP ( php ) If the readme.txt file exists, you’ll see the following output: True Code language: PHP ( php ) Print(file_exists) Code language: JavaScript ( javascript ) The following example uses the exists() function to check if the readme.txt file exists in the same folder as the program: import os.pathįile_exists = os.path.exists( 'readme.txt') It’ll work across Windows, macOS, and Linux. For example: /path/to/filenameĮven if you run the program on Windows, you should use the forward-slash ( /) to separate the path. However, it’s not the case, you need to pass the full file path of the file. If the file is in the same folder as the program, the path_to_file is just simply the file name. If the file exists, the exists() function returns True. exists( path_to_file) Code language: CSS ( css ) To check if a file exists, you pass the file path to the exists() function from the os.path standard library.įirst, import the os.path standard library: import os.path Code language: JavaScript ( javascript ) Path.is_file() Code language: JavaScript ( javascript ) 1) Using os.path.exists() function to check if a file exists os.path.exists() function from os.path import existsįile_exists = exists(path_to_file) Code language: JavaScript ( javascript ) Path.is_file() method from pathlib import Path To do it, you can use the exists() function from the os.path module or is_file() method from the Path class in the pathlib module. When processing files, you’ll often want to check if a file exists before doing something else with it such as reading from the file or writing to it. Summary: in this tutorial, you’ll learn how to check if a file exists.
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