Create a python unittest where the absence of a module is faked











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I have a piece of code that is run on many different systems. On some systems the module pyodbc is not present so I fall back to pymssql.



I would like to test the fall back process in an environment that has both of these modules installed.



Added difficulty: pyodbc is not imported anywhere in my code, only inside sqlalchemy.



The particulars of the libraries don't matter. I would just like to avoid having to run pip to remove and replace the pyodbc module and then have to test twice.



Is there some way to spoof the module being missing?






python python-3.x







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    up vote
    2
    down vote

    favorite












    I have a piece of code that is run on many different systems. On some systems the module pyodbc is not present so I fall back to pymssql.



    I would like to test the fall back process in an environment that has both of these modules installed.



    Added difficulty: pyodbc is not imported anywhere in my code, only inside sqlalchemy.



    The particulars of the libraries don't matter. I would just like to avoid having to run pip to remove and replace the pyodbc module and then have to test twice.



    Is there some way to spoof the module being missing?






    python python-3.x







    share|improve this question
























      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      I have a piece of code that is run on many different systems. On some systems the module pyodbc is not present so I fall back to pymssql.



      I would like to test the fall back process in an environment that has both of these modules installed.



      Added difficulty: pyodbc is not imported anywhere in my code, only inside sqlalchemy.



      The particulars of the libraries don't matter. I would just like to avoid having to run pip to remove and replace the pyodbc module and then have to test twice.



      Is there some way to spoof the module being missing?






      python python-3.x







      share|improve this question













      I have a piece of code that is run on many different systems. On some systems the module pyodbc is not present so I fall back to pymssql.



      I would like to test the fall back process in an environment that has both of these modules installed.



      Added difficulty: pyodbc is not imported anywhere in my code, only inside sqlalchemy.



      The particulars of the libraries don't matter. I would just like to avoid having to run pip to remove and replace the pyodbc module and then have to test twice.



      Is there some way to spoof the module being missing?






      python python-3.x




      python python-3.x






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 7 at 22:32









      zemekeneng

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