Long path tool
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#Long path tool windows#
If you are more leaning towards the Java ecosystem than Python, you may consider the following to delete files and directories the default Windows tools can't.
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#Long path tool code#
Note: The Python code examples were tested with Python 3.5.2 on Windows 10. To create deeply nested directories (100 levels deep), execute the following: C:\>python makedirs.py deeply_nested_dirs 100 split ( " \\ " ) # Last name if absolute path Print ( " Example: python %s some_dir 100 " % sys.argv )ĭir_name = path. In order to test the different solutions explored to prepare this article, I also used the following script to create deeply nested directories resulting in paths longer than MAX_PATH: import os, sys
#Long path tool how to#
The following shows how to delete the directory deeply_nested_dirs with rmrf.py: C:\>python rmrf.py deeply_nested_dirs
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Print ( " The system cannot find the path specified: ' %s ' " % path) Print ( " Usage: python %s " % sys.argv ) Below is an example of a complete Python script building an extended path, and invoking shutil.rmtree() to successfully delete a directory with a path exceeding 260 characters: import os, shutil, sys Indeed, after some simple tests, I realized that shutil.rmtree() worked perfectly, provided that an absolute path prefixed with \\?\ was passed as argument. Therefore, armed with the knowledge of the \\?\ prefix as documented in ((), it might be possible to overcome the MAX_PATH limit. On Windows, Python is using the Windows API functions. Programmatic Solutions With a little help from Python But, changing the value of LongPathsEnabled from 0 to 1, enables the usage of the Windows API functions without having to prefix paths with \\?\. Note: This does not solve the problem of being able to delete long path files or directories using the default Windows tools like DEL, RMDIR or Windows Explorer. The following registry script updates the appropriate key: Windows Registry Editor Version 5.
#Long path tool windows 10#
Since Windows 10 version 1607 (Windows 10 Anniversary Update), the MAX_PATH limitations have been somehow removed, but it requires to modify a key in the registry. For example the extended path for a directory named deeply_nested_dirs in folder C:\Users\andre is: \\?\C:\Users\andre\deeply_nested_dirs To specify an extended path, you need to use absolute paths and prefix them with \\?\. The Unicode versions allow an extended path to a maximum of 32,767 ($2^-1$) characters. RemoveDirectoryW() for RemoveDirectory), whereas the ANSI version is suffixed with an A (e.g. Those particular functions, such as RemoveDirectory(), are easy to identify as they expose the Unicode enabled version with an appended W (e.g. Nevertheless, the Windows API has functions with Unicode versions. This directly impacts the common tools we interface with on Windows, either in a command prompt ( DEL, RMDIR) or via graphical user interface applications like Windows Explorer. By default, any time a path exceeds this limit, the Windows API functions choke. As documented in the Microsoft documentation, the Windows API has a limitation of 260 characters for file and directory paths ( MAX_PATH). The issue described above is related to the Windows Maximum Path Length Limitation.
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In this article I describe my findings and propose some solutions, including the convenient Winrmrf that I implemented. Various workarounds and tools are already available, but they did not work for me due to the depth of nested directories created on my Windows system. is too long or The source file name(s) are larger than is supported by the file system.Īfter some research, I noticed that a lot of people also encountered this problem. Using the default Windows tools such as DEL, RMDIR, or Windows Explorer, resulted in errors The directory name. Over the last couple of years, I faced a Windows issue preventing me to delete directories or files with paths exceeding a certain size.
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