You could use the new Python 3. You can also get it for Python 2. The authors wrote : "The aim of this library is to provide a simple hierarchy of classes to handle filesystem paths and the common operations users do over them. Install a third-party path module found on PyPI , it wraps all the os. Update for Python 3. If you only need a temporary string, keep in mind that you can use Path objects with all the relevant functions in os.
Today you can also use the unipath package which was based on path. I would recommend using this package as it offers a clean interface to common os. This always gets the right filename of the current script, even when it is called from within another script. It is especially useful when using subprocess. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to get an absolute file path in Python Ask Question. Asked 13 years, 4 months ago. Active 4 months ago. Viewed 1. Improve this question. Mad Physicist Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No.
Any additional feedback? Submit and view feedback for This product This page. View all page feedback. In this article. The example instantiates a FileInfo object and uses its Name and Length properties to display the filename and the length of the file. Almost all paths passed to Windows APIs are normalized. During normalization, Windows performs the following steps:.
This normalization happens implicitly, but you can do it explicitly by calling the Path. The first step in path normalization is identifying the type of path. Paths fall into one of a few categories:. The type of the path determines whether or not a current directory is applied in some way. It also determines what the "root" of the path is. A path that begins with a legacy device name is always interpreted as a legacy device by the Path.
GetFullPath String method. If a path isn't fully qualified, Windows applies the current directory to it. UNCs and device paths do not have the current directory applied. If the path starts with a single component separator, the drive from the current directory is applied.
If the path starts with a drive letter, volume separator, and no component separator, the last current directory set from the command shell for the specified drive is applied. If the last current directory was not set, the drive alone is applied. These "drive relative" paths are a common source of program and script logic errors.
Assuming that a path beginning with a letter and a colon isn't relative is obviously not correct. If the path starts with something other than a separator, the current drive and current directory are applied. Relative paths are dangerous in multithreaded applications that is, most applications because the current directory is a per-process setting.
Any thread can change the current directory at any time. Starting with. NET Core 2. GetFullPath String, String method to get an absolute path from a relative path and the base path the current directory that you want to resolve it against.
If they are present, a series of slashes that follow the first two slashes are collapsed into a single slash. As the path is processed, any components or segments that are composed of a single or a double period. For a double period, the current segment and the parent segment are removed, since the double period refers to the parent directory.
Parent directories are only removed if they aren't past the root of the path. If the first operand is -n, or if any of the operands contain a character, the results are implementation-defined. Thus whenever you want to write something to stdout and it's not for the purpose of printing a message to the user, the recommendation is to use printf as the behavior of printf is exactly defined. My function uses stdout to pass out a result, this is not a message for the user and thus only using printf guarantees perfect portability.
Note also that this only work in bash and compatible shells. I don't believe the substitutions work in the simple shell sh. Hey guys I know it's an old thread but I am just posting this for reference to anybody else who visited this like me.
It displays the absolute path of the file supplied, but only if it exists. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Ask Question. Asked 11 years, 3 months ago.
Active 11 months ago. Viewed k times. Here's a sample implementation, abspath. Improve this question. I would argue that DennisWilliamson's answer using -m option is superior for usually being more portable and working with files that don't exist.
Or Flimm's answer; both are good solutions. Bannier's however answers my original question best. OSX users: see this answer — Ian. Possible duplicate of Bash: retrieve absolute path given relative — user. Add a comment. Active Oldest Votes. Improve this answer. Boris 9, 7 7 gold badges 72 72 silver badges 74 74 bronze badges. Benjamin Bannier Benjamin Bannier But note that it is an external command not a shell built-in and may not be present in every system by default, i.
In Debian it resides in a separate package with the same name. I added to my path a realpath consisting of: github.
Dalin: Try installing coreutils. The binary is named grealpath. This tool was introduced in GNU coreutils 8. WalterTross, it is available from the coreutils formula via Homebrew.
Show 16 more comments. Dennis Williamson Dennis Williamson k 87 87 gold badges silver badges bronze badges. I would rather use '-f' instead of '-e' so that we can see absolute path of a nonexistent file. This looks like the simplest to me, while also being portable.
It seems to me that -m is the best option to use. Or did you mean those options are not found on OS X? It seems to be a stunted BSD version If the given argument is not a symbolic link, readlink will print nothing and exit with an error , so readlink won't work for this purpose on OSX — SnoringFrog. Show 6 more comments. James Bedford Don't forget to quote all the stuff. If you don't understand why, try your program on a file a b two spaces between a and b, SO eats one of them.
Show 8 more comments. Expanding on dogbane's answer above here it is expressed as a function:! Why do I like this solution? What if dir doesn't exist?
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