TypeError: invalid file: PosixPath('/home/skovorodkin/stack/scripts/2.py')ДЄs you can see, open(p) does not work with Python 3.5. In Python 3.4 and 3.5 that caused some pain, because open built-in function could only work with string or bytes objects, and did not support Path objects, so you had to convert Path objects to strings or use the Path.open() method, but the latter option required you to change old code: File scripts/2.py from pathlib import Path Please note, that Path.cwd(), Path.resolve() and other Path methods return path objects ( PosixPath in my case), not strings. Remember that _file_ is not reliable in some situations: How do I get the path of the current executed file in Python?. parent): print(Path(_file_).resolve().parent) # /home/skovorodkin/stack/scripts To get an absolute path to your script file, use the Path.resolve() method: print(Path(_file_).resolve()) # /home/skovorodkin/stack/scripts/1.pyДЄnd to get the path of a directory where your script is located, access. Print(Path.cwd()) # /home/skovorodkin/stack In order to get the current working directory, use Path.cwd(): from pathlib import Path However keep in mind that when using any of the methods, each has its own list of benefits and potential issues.The pathlib module, introduced in Python 3.4 ( PEP 428 - The pathlib module - object-oriented filesystem paths), makes the path-related experience much much better. In many cases os.path.isfile should suffice just fine.

Whichever method you decide to use depends on why you need to check if a file exists, whether speed matters, and often how many files you are trying to open at any given time. > bar_accessible = file_accessible('bar.txt', 'r')

> foo_accessible = file_accessible('foo.txt', 'r') > # whereas the file 'bar.txt' doesn't exist. > # Say the file 'foo.txt' exists and is readable, To get the base path of your Python working. However, while os.getcwd, which is the more common method, only checks your current working directory, the os.path method can check both the current directory as well as the base path of your working directory. ''' Check if a file exists and is accessible. You can get your current Python directory by using either the os.path or os.getcwd method. This can be transformed into an easy to use function, as follows. In order to absolutely guarantee that the file not only exists, but is accessible at the current time, the easiest method is actually attempting to open the file. IOError: No such file or directory: 'foo.txt' > # After executing os.access() and before open(), > # The file 'foo.txt' currently exists and is readable. The following is an example of how it can happen. This is known as a race condition, and should be avoided. However if you plan on accessing the file, it is possible (although unlikely), that in between the time you check it is accessible and the time you access it, it has been deleted or moved/renamed. If you are planning on accessing a file, using this function is somewhat safer (although not completelyВ recommend) because it also checks if you can access (reading or writing) the file. True # This means the file exists AND you can read it.ДЇalse # You cannot write to the file. To test if the file is readable os.R_OK can be used, and os.W_OK can be used to determine if the file is writable. This function tests if the current user (with the real uid/gid) has access (read and/or write privileges) to a given path. It is possible (although highly unlikely), that between the time you called this function, and when you access the file, it has been deleted or moved/renamed.ДЇor example, it may fail in the following scenario: It also only tells you that the file existed at the point in time you called the function. Unfortunately the function only checks whether the specified path is a file, but does notВ guaranteeВ that the user has access to it. This is a handy function to check if a file exists, because it's a simple one liner. It follows symbolic links, therefore it's possible for os.path.islink(path) to be true while os.path.isfile(path) is also true. This function returns true if the given path is an existing, regular file. Below we will go through each method of checking if a file exists (and whether it is accessible), and discuss some of the potential issues with each one. When checking if a file exists, often it is performed right before accessing (reading and/or writing) a file. With Python there are several methods which can be used to check if a file exists, in a certain directory. Last Updated: Wednesday 29 th December 2021

Python find file in directory