Missed dependency on libwebp

[paskino]

Issue:

The issue came out installing any version of pillow which would result with the message

ImportError: libwebp.so.7: cannot open shared object file: No such file or directory

Environment (conda list):

$ conda list
# packages in environment at /home/edo/miniconda3/envs/c2:
#
# Name                    Version                   Build  Channel
_libgcc_mutex             0.1                 conda_forge    conda-forge
ca-certificates           2019.11.28           hecc5488_0    conda-forge
certifi                   2019.11.28               py36_0    conda-forge
freetype                  2.10.0               he983fc9_1    conda-forge
giflib                    5.2.1                h516909a_1    conda-forge
jpeg                      9c                h14c3975_1001    conda-forge
libffi                    3.2.1             he1b5a44_1006    conda-forge
libgcc-ng                 9.2.0                h24d8f2e_1    conda-forge
libgomp                   9.2.0                h24d8f2e_1    conda-forge
libpng                    1.6.37               hed695b0_0    conda-forge
libstdcxx-ng              9.2.0                hdf63c60_1    conda-forge
libtiff                   4.1.0                hc3755c2_4    conda-forge
libwebp                   1.1.0                h56121f0_1    conda-forge
libwebp-base              1.1.0                         1    conda-forge
lz4-c                     1.8.3             he1b5a44_1001    conda-forge
ncurses                   6.1               hf484d3e_1002    conda-forge
olefile                   0.46                       py_0    conda-forge
openmp_impl               4.5                       0_gnu    conda-forge
openssl                   1.1.1d               h516909a_0    conda-forge
pillow                    5.4.1           py36h00a061d_1000    conda-forge
pip                       19.3.1                   py36_0    conda-forge
python                    3.6.7             h357f687_1006    conda-forge
readline                  8.0                  hf8c457e_0    conda-forge
setuptools                44.0.0                   py36_0    conda-forge
sqlite                    3.30.1               hcee41ef_0    conda-forge
tk                        8.6.10               hed695b0_0    conda-forge
wheel                     0.33.6                   py36_0    conda-forge
xz                        5.2.4             h14c3975_1001    conda-forge
zlib                      1.2.11            h516909a_1006    conda-forge
zstd                      1.4.4                h3b9ef0a_1    conda-forge

Details about conda and system ( conda info ):

$ conda info

active environment : c2
    active env location : /home/edo/miniconda3/envs/c2
            shell level : 2
       user config file : /home/edo/.condarc
 populated config files : /home/edo/.condarc
          conda version : 4.7.12
    conda-build version : 3.18.9
         python version : 3.7.3.final.0
       virtual packages : __cuda=10.1
       base environment : /home/edo/miniconda3  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/free/linux-64
                          https://repo.anaconda.com/pkgs/free/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /home/edo/miniconda3/pkgs
                          /home/edo/.conda/pkgs
       envs directories : /home/edo/miniconda3/envs
                          /home/edo/.conda/envs
               platform : linux-64
             user-agent : conda/4.7.12 requests/2.22.0 CPython/3.7.3 Linux/3.10.0-957.27.2.el7.x86_64 centos/7.6.1810 glibc/2.17
                UID:GID : 1000:1000
             netrc file : None
           offline mode : False

I tracked down the issue to libtiff which is now dependent on libwebp, however libwebp.so.7 is not installed by libwebp rather by libwebp-base.

I'm not sure I understand correctly conda's documentation about host requirements, which seem to say that the current libtiff recipe is correct.

However, on my machines libwebp-base never gets installed and installing it seems to fix my problems.

Issue seems the same as #52

[djhoese]

Also seeing this on my travis runs on OSX. More complete traceback for me is:

  File "/Users/travis/miniconda/envs/test/lib/python3.7/site-packages/trollimage/xrimage.py", line 40, in <module>

    from PIL import Image as PILImage

  File "/Users/travis/miniconda/envs/test/lib/python3.7/site-packages/PIL/Image.py", line 69, in <module>

    from . import _imaging as core

ImportError: dlopen(/Users/travis/miniconda/envs/test/lib/python3.7/site-packages/PIL/_imaging.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libwebp.7.dylib

  Referenced from: /Users/travis/miniconda/envs/test/lib/libtiff.5.dylib

  Reason: Incompatible library version: libtiff.5.dylib requires version 9.0.0 or later, but libwebp.7.dylib provides version 8.0.0

[ocefpaf]

We already rolled back the latest libtiff build number 4. We'll introduce that again with a migrator and hopefully avoid that issue. Just update and see if build number 4 is removed from your envs.

[djhoese]

@ocefpaf Thanks. I restarted my travis builds and build 3 was picked up instead of the failing build 4. Tests are passing again.