What's the best way to get the full directory of the current Blender file in Python?
It should be cross-platform.
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2 Answers
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Path Utilities module provides bpy.path.abspath("//") where the "//" prefix is a Blender specific identifier for the current blend file.
You can also do...
bpy.path.abspath("//my/file.txt")bpy.path.abspath("//my\\file.txt")on Windows, with backslash escapedbpy.path.abspath(r"//my\file.txt")on Windows, using python raw stringbpy.path.abspath("//../file.txt")to go back a directory
This is used by all internal paths in blender, image, video, render, pointcache etc - paths. so blend files can reference paths relative to each file.
Worth noting that the path may be an empty string, so you may want to check bpy.data.is_saved first.
answered Feb 7, 2014 at 15:11
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$\begingroup$ you missed to escape the backslash, edited your answer to show two ways to handle them. General note: with raw strings, you can't have a
\as last character, nor can you escape it like\\(will be used literally, as double backslash,repr(r"\\")gives\\\\). [had to add a space after \ for stackexchange] $\endgroup$– CodeManXCommented Feb 7, 2014 at 16:51 -
$\begingroup$ To get the correct separator character, you should use
os.path.sep. $\endgroup$ Commented Jul 21, 2022 at 21:02
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You can use the functions provided by os.path for handling pathnames independendly from a platform.
import bpy
import os
filepath = bpy.data.filepath
directory = os.path.dirname(filepath)
print(directory)
To add a file to the basename you could use os.path.join:
newfile_name = os.path.join( directory , "newfile.blend")
/and\`. Or at least useos.path.sep` to get the separator for the current platform. But keep in mind Blender's own notation for relative paths (starting with//). And always check windows compatibility, python may fail for paths which are directly on a drive (drive missing the colon or the backslash). $\endgroup$