unordered_set in Cython using Jupyter Notebook












1















I'm stuck trying to use unordered_sets in Cython in a Jupyter Notebook on my Mac.



%%cython -a -3

# distutils: language = c++

# cython: c_string_type=unicode, c_string_encoding=utf8

import cython

from libcpp.unordered_set cimport unordered_set



def test():

    cdef unordered_set[int] s

    return s


The above cell throws:
DistutilsExecError: command 'gcc' failed with exit status 1






python jupyter-notebook cython







share|improve this question




















  • 1





    If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

    – chrisb
    Jan 3 at 21:25
















1















I'm stuck trying to use unordered_sets in Cython in a Jupyter Notebook on my Mac.



%%cython -a -3

# distutils: language = c++

# cython: c_string_type=unicode, c_string_encoding=utf8

import cython

from libcpp.unordered_set cimport unordered_set



def test():

    cdef unordered_set[int] s

    return s


The above cell throws:
DistutilsExecError: command 'gcc' failed with exit status 1






python jupyter-notebook cython







share|improve this question




















  • 1





    If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

    – chrisb
    Jan 3 at 21:25














1












1








1








I'm stuck trying to use unordered_sets in Cython in a Jupyter Notebook on my Mac.



%%cython -a -3

# distutils: language = c++

# cython: c_string_type=unicode, c_string_encoding=utf8

import cython

from libcpp.unordered_set cimport unordered_set



def test():

    cdef unordered_set[int] s

    return s


The above cell throws:
DistutilsExecError: command 'gcc' failed with exit status 1






python jupyter-notebook cython







share|improve this question
















I'm stuck trying to use unordered_sets in Cython in a Jupyter Notebook on my Mac.



%%cython -a -3

# distutils: language = c++

# cython: c_string_type=unicode, c_string_encoding=utf8

import cython

from libcpp.unordered_set cimport unordered_set



def test():

    cdef unordered_set[int] s

    return s


The above cell throws:
DistutilsExecError: command 'gcc' failed with exit status 1






python jupyter-notebook cython




python jupyter-notebook cython






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 4 at 21:45







user666

















asked Jan 3 at 19:35









user666user666

1,9001524




1,9001524








  • 1





    If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

    – chrisb
    Jan 3 at 21:25














  • 1





    If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

    – chrisb
    Jan 3 at 21:25








1




1





If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

– chrisb
Jan 3 at 21:25





If you look at the terminal window you started jupyter from, the gcc output should be there? FWIW this works fine on Windows with Visual C++

– chrisb
Jan 3 at 21:25












2 Answers
2






active

oldest

votes


















2














Older gcc versions don't use c++-11 (but c++-98) per default, and because unordered_map is a c++11-feature, you need to pass the option to the compiler.



For example via:



%%cython -a -3 -c=-std=c++11


Or update your gcc to 6.0 or above.






share|improve this answer
























  • Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

    – user666
    Jan 4 at 21:44



















0














What finally worked for me was a modified version of @ead's answer.



I updated GCC using homebrew (and XCode), and the following code does not throw the same error as before.



%%cython -a -3 -c=-stdlib=libc++

# distutils: language = c++



import cython

from libcpp.unordered_set cimport unordered_set



def test():

    cdef unordered_set[int] s

    return s





share|improve this answer
























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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    Older gcc versions don't use c++-11 (but c++-98) per default, and because unordered_map is a c++11-feature, you need to pass the option to the compiler.



    For example via:



    %%cython -a -3 -c=-std=c++11


    Or update your gcc to 6.0 or above.






    share|improve this answer
























    • Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

      – user666
      Jan 4 at 21:44
















    2














    Older gcc versions don't use c++-11 (but c++-98) per default, and because unordered_map is a c++11-feature, you need to pass the option to the compiler.



    For example via:



    %%cython -a -3 -c=-std=c++11


    Or update your gcc to 6.0 or above.






    share|improve this answer
























    • Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

      – user666
      Jan 4 at 21:44














    2












    2








    2







    Older gcc versions don't use c++-11 (but c++-98) per default, and because unordered_map is a c++11-feature, you need to pass the option to the compiler.



    For example via:



    %%cython -a -3 -c=-std=c++11


    Or update your gcc to 6.0 or above.






    share|improve this answer













    Older gcc versions don't use c++-11 (but c++-98) per default, and because unordered_map is a c++11-feature, you need to pass the option to the compiler.



    For example via:



    %%cython -a -3 -c=-std=c++11


    Or update your gcc to 6.0 or above.







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Jan 3 at 22:18









    eadead

    13.5k23164




    13.5k23164













    • Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

      – user666
      Jan 4 at 21:44



















    • Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

      – user666
      Jan 4 at 21:44

















    Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

    – user666
    Jan 4 at 21:44





    Thanks! I had to pass -c=-stdlib=libc++ to make it work on OSX.

    – user666
    Jan 4 at 21:44













    0














    What finally worked for me was a modified version of @ead's answer.



    I updated GCC using homebrew (and XCode), and the following code does not throw the same error as before.



    %%cython -a -3 -c=-stdlib=libc++
    
# distutils: language = c++
    

    
import cython
    
from libcpp.unordered_set cimport unordered_set
    

    
def test():
    
    cdef unordered_set[int] s
    
    return s





    share|improve this answer




























      0














      What finally worked for me was a modified version of @ead's answer.



      I updated GCC using homebrew (and XCode), and the following code does not throw the same error as before.



      %%cython -a -3 -c=-stdlib=libc++
      
# distutils: language = c++
      

      
import cython
      
from libcpp.unordered_set cimport unordered_set
      

      
def test():
      
    cdef unordered_set[int] s
      
    return s





      share|improve this answer


























        0












        0








        0







        What finally worked for me was a modified version of @ead's answer.



        I updated GCC using homebrew (and XCode), and the following code does not throw the same error as before.



        %%cython -a -3 -c=-stdlib=libc++
        
# distutils: language = c++
        

        
import cython
        
from libcpp.unordered_set cimport unordered_set
        

        
def test():
        
    cdef unordered_set[int] s
        
    return s





        share|improve this answer













        What finally worked for me was a modified version of @ead's answer.



        I updated GCC using homebrew (and XCode), and the following code does not throw the same error as before.



        %%cython -a -3 -c=-stdlib=libc++
        
# distutils: language = c++
        

        
import cython
        
from libcpp.unordered_set cimport unordered_set
        

        
def test():
        
    cdef unordered_set[int] s
        
    return s






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 4 at 21:50









        user666user666

        1,9001524




        1,9001524






























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