After following the Theano installation instructions, attempting to import 
Theano using Python 3.5 gives me the following error:

You can find the C code in this temporary file: 
/var/folders/0f/ymnzcwzs7k75g9rybwgzc9hc0000gn/T/theano_compilation_error_o4xziccn

Traceback (most recent call last):

  File "/anaconda3/lib/python3.5/site-packages/theano/gof/lazylinker_c.py", 
line 81, in <module>

    actual_version, force_compile, _need_reload))

ImportError: Version check of the existing lazylinker compiled file. 
Looking for version 0.211, but found None. Extra debug information: 
force_compile=False, _need_reload=True


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "/anaconda3/lib/python3.5/site-packages/theano/gof/lazylinker_c.py", 
line 105, in <module>

    actual_version, force_compile, _need_reload))

ImportError: Version check of the existing lazylinker compiled file. 
Looking for version 0.211, but found None. Extra debug information: 
force_compile=False, _need_reload=True


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/anaconda3/lib/python3.5/site-packages/theano/__init__.py", line 
110, in <module>

    from theano.compile import (

  File "/anaconda3/lib/python3.5/site-packages/theano/compile/__init__.py", 
line 12, in <module>

    from theano.compile.mode import *

  File "/anaconda3/lib/python3.5/site-packages/theano/compile/mode.py", 
line 11, in <module>

    import theano.gof.vm

  File "/anaconda3/lib/python3.5/site-packages/theano/gof/vm.py", line 674, 
in <module>

    from . import lazylinker_c

  File "/anaconda3/lib/python3.5/site-packages/theano/gof/lazylinker_c.py", 
line 140, in <module>

    preargs=args)

  File "/anaconda3/lib/python3.5/site-packages/theano/gof/cmodule.py", line 
2388, in compile_str

    (status, compile_stderr.replace('\n', '. ')))

Exception: Compilation failed (return status=1): In file included from 
/Users/chris/.theano/compiledir_Darwin-18.0.0-x86_64-i386-64bit-i386-3.5.6-64/lazylinker_ext/mod.cpp:1:.
 
In file included from /anaconda3/include/python3.5m/Python.h:25:. 
/anaconda3/bin/../include/c++/v1/stdio.h:108:15: fatal error: 'stdio.h' 
file not found. #include_next <stdio.h>.               ^~~~~~~~~. 1 error 
generated.. 

I have installed Xcode command-line tools, all optional dependencies for 
MacOS, uninstalled and re-installed Anaconda, etc.

Any help would be very much appreciated!

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