OpenEXR.cpp:36:10: fatal error: 'ImathBox.h' file not found

[SilvioJin]

I'm trying to install openexr for python, so I first started with installing and building this repo (following the instructions as mentioned in here, I downloaded the repo and followed the TLDR part) and it installs and builds correctly (although I had to do
brew uninstall boost-python).

Then I did
pip install openexr

and this was the error:

Collecting openexr
  Using cached https://files.pythonhosted.org/packages/7c/c4/76bf884f59d3137847edf8b93aaf40f6257d8315d0064e8b1a606ad80b1b/OpenEXR-1.3.2.tar.gz
Building wheels for collected packages: openexr
  Building wheel for openexr (setup.py) ... error
  ERROR: Complete output from command /Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-62j670go/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-wheel-y7k6_it0 --python-tag cp36:
  ERROR: running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.6
  copying Imath.py -> build/lib.macosx-10.7-x86_64-3.6
  running build_ext
  building 'OpenEXR' extension
  creating build/temp.macosx-10.7-x86_64-3.6
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/silviojin/anaconda3/include -arch x86_64 -I/Users/silviojin/anaconda3/include -arch x86_64 -I/usr/include/OpenEXR -I/usr/local/include/OpenEXR -I/opt/local/include/OpenEXR -I/Users/silviojin/anaconda3/include/python3.6m -c OpenEXR.cpp -o build/temp.macosx-10.7-x86_64-3.6/OpenEXR.o -g -DVERSION="1.3.2"
  warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
  In file included from OpenEXR.cpp:36:
  In file included from /usr/local/include/OpenEXR/ImathBox.h:65:
  In file included from /usr/local/include/OpenEXR/ImathVec.h:46:
  In file included from /usr/local/include/OpenEXR/ImathExc.h:47:
  /usr/local/include/OpenEXR/IexBaseExc.h:49:10: fatal error: 'string' file not found
  #include <string>
           ^~~~~~~~
  1 warning and 1 error generated.
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for openexr
  Running setup.py clean for openexr
Failed to build openexr
Installing collected packages: openexr
  Running setup.py install for openexr ... error
    ERROR: Complete output from command /Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-62j670go/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-record-jpxqo66g/install-record.txt --single-version-externally-managed --compile:
    ERROR: running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.7-x86_64-3.6
    copying Imath.py -> build/lib.macosx-10.7-x86_64-3.6
    running build_ext
    building 'OpenEXR' extension
    creating build/temp.macosx-10.7-x86_64-3.6
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/silviojin/anaconda3/include -arch x86_64 -I/Users/silviojin/anaconda3/include -arch x86_64 -I/usr/include/OpenEXR -I/usr/local/include/OpenEXR -I/opt/local/include/OpenEXR -I/Users/silviojin/anaconda3/include/python3.6m -c OpenEXR.cpp -o build/temp.macosx-10.7-x86_64-3.6/OpenEXR.o -g -DVERSION="1.3.2"
    warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    In file included from OpenEXR.cpp:36:
    In file included from /usr/local/include/OpenEXR/ImathBox.h:65:
    In file included from /usr/local/include/OpenEXR/ImathVec.h:46:
    In file included from /usr/local/include/OpenEXR/ImathExc.h:47:
    /usr/local/include/OpenEXR/IexBaseExc.h:49:10: fatal error: 'string' file not found
    #include <string>
             ^~~~~~~~
    1 warning and 1 error generated.
    error: command 'gcc' failed with exit status 1
    ----------------------------------------
ERROR: Command "/Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-62j670go/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-record-jpxqo66g/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-62j670go/openexr/

So I went into /usr/local/include and I noticed that OpenEXR was the only directory that was physically there and not symbolically linked to a directory in /usr/local/Cellar.

Why is that?

Then just to try, I moved the OpenEXR directory (that contains the .h files like ImathBox.h) from /usr/local/include to /usr/local/Cellar and created a link in /usr/local/include.

Then I tried again

pip install openexr

and the result was slightly different:

Collecting openexr
  Using cached https://files.pythonhosted.org/packages/7c/c4/76bf884f59d3137847edf8b93aaf40f6257d8315d0064e8b1a606ad80b1b/OpenEXR-1.3.2.tar.gz
Building wheels for collected packages: openexr
  Building wheel for openexr (setup.py) ... error
  ERROR: Complete output from command /Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-ar599j7u/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-wheel-tr6xiwvw --python-tag cp36:
  ERROR: running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.6
  copying Imath.py -> build/lib.macosx-10.7-x86_64-3.6
  running build_ext
  building 'OpenEXR' extension
  creating build/temp.macosx-10.7-x86_64-3.6
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/silviojin/anaconda3/include -arch x86_64 -I/Users/silviojin/anaconda3/include -arch x86_64 -I/usr/include/OpenEXR -I/usr/local/include/OpenEXR -I/opt/local/include/OpenEXR -I/Users/silviojin/anaconda3/include/python3.6m -c OpenEXR.cpp -o build/temp.macosx-10.7-x86_64-3.6/OpenEXR.o -g -DVERSION="1.3.2"
  warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
  OpenEXR.cpp:36:10: fatal error: 'ImathBox.h' file not found
  #include <ImathBox.h>
           ^~~~~~~~~~~~
  1 warning and 1 error generated.
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for openexr
  Running setup.py clean for openexr
Failed to build openexr
Installing collected packages: openexr
  Running setup.py install for openexr ... error
    ERROR: Complete output from command /Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-ar599j7u/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-record-sfr18ojx/install-record.txt --single-version-externally-managed --compile:
    ERROR: running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.7-x86_64-3.6
    copying Imath.py -> build/lib.macosx-10.7-x86_64-3.6
    running build_ext
    building 'OpenEXR' extension
    creating build/temp.macosx-10.7-x86_64-3.6
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/silviojin/anaconda3/include -arch x86_64 -I/Users/silviojin/anaconda3/include -arch x86_64 -I/usr/include/OpenEXR -I/usr/local/include/OpenEXR -I/opt/local/include/OpenEXR -I/Users/silviojin/anaconda3/include/python3.6m -c OpenEXR.cpp -o build/temp.macosx-10.7-x86_64-3.6/OpenEXR.o -g -DVERSION="1.3.2"
    warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    OpenEXR.cpp:36:10: fatal error: 'ImathBox.h' file not found
    #include <ImathBox.h>
             ^~~~~~~~~~~~
    1 warning and 1 error generated.
    error: command 'gcc' failed with exit status 1
    ----------------------------------------
ERROR: Command "/Users/silviojin/anaconda3/bin/python -u -c 'import setuptools, tokenize;__file__='"'"'/private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-ar599j7u/openexr/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-record-sfr18ojx/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/pip-install-ar599j7u/openexr/

The ImathBox.h file is inside the OpenEXR directory though.

I found someone with a similar error here but the suggested solutions didn't work for me. When doing
$ easy_install -U openexr

it gives basically the same error:

Searching for openexr
Reading https://pypi.org/simple/openexr/
Downloading https://files.pythonhosted.org/packages/7c/c4/76bf884f59d3137847edf8b93aaf40f6257d8315d0064e8b1a606ad80b1b/OpenEXR-1.3.2.tar.gz#sha256=1ef52d60a2c2cd0ebf8d8a7baf7fffd2a475953035dd9afab2117b86526f339f
Best match: OpenEXR 1.3.2
Processing OpenEXR-1.3.2.tar.gz
Writing /var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/easy_install-rcf2ele7/OpenEXR-1.3.2/setup.cfg
Running OpenEXR-1.3.2/setup.py -q bdist_egg --dist-dir /var/folders/g9/k_xb1tyd5hbg_48np5hvwh3m0000gn/T/easy_install-rcf2ele7/OpenEXR-1.3.2/egg-dist-tmp-x8etbol4
warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++
      standard library instead [-Wstdlibcxx-not-found]
OpenEXR.cpp:36:10: fatal error: 'ImathBox.h' file not found
#include <ImathBox.h>
         ^~~~~~~~~~~~
1 warning and 1 error generated.

#11 had a similar problem, but none of the suggestions worked for me:
I tried as mentioned here
brew install openexr
which was successful and then
sudo pip install openexr
but got the same error

Can anyone help?

I'm using:
MacOS 10.14.5
Python 3.6.5

[ShnitzelKiller]

This happens to me when trying to build in OS X as well (the first issue, where basic imports like seem to fail). It might have to do with the standard C++ libraries becoming unsupported in newer versions of OS X, see https://docs.brew.sh/C++-Standard-Libraries.

[ShnitzelKiller]

I wrote a fix for the first issue you described, the standard library not being found. It will work with a vanilla brew installation of ilmbase and openexr. Does it work on your end?

[jazz-soft]

I still have the same issue...

[SebastianGrans]

This might help. But probably not.
If you download the package

pip download openexr

and then modify setup.p to have the following line:

include_dirs=['/usr/include/OpenEXR', '/usr/local/include/OpenEXR', '/opt/local/include/OpenEXR', '/usr/local/Cellar/imath/3.0.4/include/Imath'],

then you should be able to intall from the folder:

pip insatll .

After this, it shouldn't complain about IMathBox.h anymore. Instead there will be other issues which are probably related to #42