Python Sass unable to load DLL

Question

On Windows, Python 3.4 64bit. Installed libsass, but unable to run it.
Probably something to do with the 32bit vs 64bit.

pip install libsass
Requirement already satisfied (use --upgrade to upgrade): libsass in c:\python34\lib\site-packages
Requirement already satisfied (use --upgrade to upgrade): six in c:\python34\lib\site-packages (from libsass)

python
Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:44:40) [MSC v.1600 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

import sass
Traceback (most recent call last):
File "", line 1, in 
File "C:\Python34\lib\site-packages\sass.py", line 24, in 
from _sass import OUTPUT_STYLES, compile_filename, compile_string
ImportError: DLL load failed: %1 is not a valid Win32 application.

Help!

score 1 · Accepted Answer · answered Aug 28 '15 at 06:38

1

You should just install the appropriate wheel from: https://pypi.python.org/pypi/libsass (libsass-0.8.3-cp34-none-win_amd64.whl)

answered Aug 28 '15 at 06:38

Ringil

6,277
2
23
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KateJ · Answer 2 · 2015-11-25T21:09:03.923

I just experienced a similar error:

      File "K:\Python27\lib\site-packages\sass.py", line 26, in <module>
      from _sass import OUTPUT_STYLES, compile_filename, compile_string
      ImportError: DLL load failed: The specified module could not be found.

After a bunch of searching, it looked like on Windows I was missing the needed C++, and again, being Windows, the simplest way to fix this was to update VisualStudio with the C++ library.

Error is gone and libsass is working great after doing this.

    Python 2.7.10 (default, May 23 2015, 09:40:32) [MSC v.1500 32 bit(Intel)] on win32  Type "help", "copyright", "credits" or "license" for more information.
    >>> import sass
    >>> print sass.compile(string='a { b{ color: blue; } }')
     a b { color: blue; }

I know it doesn't directly answer the question, but thought I'd leave the solution I found here, for those who are in the process of losing a couple hours like I did.

I had Visual Studio 2013 - installed Visual Studio Community 2015 (making sure to select the C & C++ libraries)

can you update on from which version you updated and what was the final version? — prasun, Nov 25 '15 at 13:09
Yes definitely, sorry. Was in a rush when I typed that up. I had Visual Studio 2013, Installed Visual Studio Community 2015 (making sure to select the C & C++ libraries) — KateJ, Nov 25 '15 at 21:08

score 0 · Answer 3 · answered Dec 03 '15 at 13:48

0

The libsass DLL ("_sass.pyd" in the python world) probably misses some of its dependencies.

You can just install the small "Visual C++ Redistributable for Visual Studio 2015" to get that bunch of missing C++ components.

answered Dec 03 '15 at 13:48

Pakal De Bonchamp

63
5

Python Sass unable to load DLL

3 Answers3