Disable joblib.memory caching globally during unittest












0















I use the joblib.Memory module to cache some functions within several modules. The cache is initialized within modules and classes separately.



Module1:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function(...)
.....


Module2:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function2(...)
.....


Module3:



import Module1
import Module2

def heavy_function3(...)
Module1.heavy_function1(...)
Module1.heavy_function1(...)
.....


Now I have a unit testing script and I want to disable the usage of the cache globally during the unit testing to make sure everything is correctly computed.
Is this possible without manually disabling it for each module via
Module1.memory.cachedir=None or without deleting the cachedir?



My current solution just patches each memory call manually



unittest1:



from joblib import Memory
import Module1
Module1.memory = Memory(location=None)
...
unittest.run()


unittest3:



from joblib import Memory
import Module1 # need to import module 1 just to disable its memory
import Module2 # need to import module 2 just to disable its memory
import Modul3
Module1.memory = Memory(location=None)
Module2.memory = Memory(location=None)
...
unittest.run()


The more modules I create, the more manual patching up of the Memory I need. I thought there might be a better solution. One work-around is proposed by me below.










share|improve this question

























  • why not monkey-patch those Memory instances?

    – georgexsh
    Nov 22 '18 at 11:20











  • This is my current solution, but I thought maybe there is another way?

    – skjerns
    Nov 22 '18 at 13:23
















0















I use the joblib.Memory module to cache some functions within several modules. The cache is initialized within modules and classes separately.



Module1:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function(...)
.....


Module2:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function2(...)
.....


Module3:



import Module1
import Module2

def heavy_function3(...)
Module1.heavy_function1(...)
Module1.heavy_function1(...)
.....


Now I have a unit testing script and I want to disable the usage of the cache globally during the unit testing to make sure everything is correctly computed.
Is this possible without manually disabling it for each module via
Module1.memory.cachedir=None or without deleting the cachedir?



My current solution just patches each memory call manually



unittest1:



from joblib import Memory
import Module1
Module1.memory = Memory(location=None)
...
unittest.run()


unittest3:



from joblib import Memory
import Module1 # need to import module 1 just to disable its memory
import Module2 # need to import module 2 just to disable its memory
import Modul3
Module1.memory = Memory(location=None)
Module2.memory = Memory(location=None)
...
unittest.run()


The more modules I create, the more manual patching up of the Memory I need. I thought there might be a better solution. One work-around is proposed by me below.










share|improve this question

























  • why not monkey-patch those Memory instances?

    – georgexsh
    Nov 22 '18 at 11:20











  • This is my current solution, but I thought maybe there is another way?

    – skjerns
    Nov 22 '18 at 13:23














0












0








0








I use the joblib.Memory module to cache some functions within several modules. The cache is initialized within modules and classes separately.



Module1:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function(...)
.....


Module2:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function2(...)
.....


Module3:



import Module1
import Module2

def heavy_function3(...)
Module1.heavy_function1(...)
Module1.heavy_function1(...)
.....


Now I have a unit testing script and I want to disable the usage of the cache globally during the unit testing to make sure everything is correctly computed.
Is this possible without manually disabling it for each module via
Module1.memory.cachedir=None or without deleting the cachedir?



My current solution just patches each memory call manually



unittest1:



from joblib import Memory
import Module1
Module1.memory = Memory(location=None)
...
unittest.run()


unittest3:



from joblib import Memory
import Module1 # need to import module 1 just to disable its memory
import Module2 # need to import module 2 just to disable its memory
import Modul3
Module1.memory = Memory(location=None)
Module2.memory = Memory(location=None)
...
unittest.run()


The more modules I create, the more manual patching up of the Memory I need. I thought there might be a better solution. One work-around is proposed by me below.










share|improve this question
















I use the joblib.Memory module to cache some functions within several modules. The cache is initialized within modules and classes separately.



Module1:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function(...)
.....


Module2:



memory = Memory(location='/cache/')
@memory.cache
def heavy_function2(...)
.....


Module3:



import Module1
import Module2

def heavy_function3(...)
Module1.heavy_function1(...)
Module1.heavy_function1(...)
.....


Now I have a unit testing script and I want to disable the usage of the cache globally during the unit testing to make sure everything is correctly computed.
Is this possible without manually disabling it for each module via
Module1.memory.cachedir=None or without deleting the cachedir?



My current solution just patches each memory call manually



unittest1:



from joblib import Memory
import Module1
Module1.memory = Memory(location=None)
...
unittest.run()


unittest3:



from joblib import Memory
import Module1 # need to import module 1 just to disable its memory
import Module2 # need to import module 2 just to disable its memory
import Modul3
Module1.memory = Memory(location=None)
Module2.memory = Memory(location=None)
...
unittest.run()


The more modules I create, the more manual patching up of the Memory I need. I thought there might be a better solution. One work-around is proposed by me below.







python unit-testing caching joblib






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 22 '18 at 13:30







skjerns

















asked Nov 15 '18 at 11:36









skjernsskjerns

18111




18111













  • why not monkey-patch those Memory instances?

    – georgexsh
    Nov 22 '18 at 11:20











  • This is my current solution, but I thought maybe there is another way?

    – skjerns
    Nov 22 '18 at 13:23



















  • why not monkey-patch those Memory instances?

    – georgexsh
    Nov 22 '18 at 11:20











  • This is my current solution, but I thought maybe there is another way?

    – skjerns
    Nov 22 '18 at 13:23

















why not monkey-patch those Memory instances?

– georgexsh
Nov 22 '18 at 11:20





why not monkey-patch those Memory instances?

– georgexsh
Nov 22 '18 at 11:20













This is my current solution, but I thought maybe there is another way?

– skjerns
Nov 22 '18 at 13:23





This is my current solution, but I thought maybe there is another way?

– skjerns
Nov 22 '18 at 13:23












1 Answer
1






active

oldest

votes


















0














One work-around is to set a flag or an environment variable when running tests. Then check for these flags before initializing the Memory:



Module1



import os
memflag = os.environ.get('UNITTESTING', False)
memory = Memory(location= None if memflag else '/cache/')
@memory.cache
def heavy_function(...)
.....


unittest1



os.environ["UNITTESTING"] = '1'
import Module1
.....
unittest.run()
del os.environ["UNITTESTING"]





share|improve this answer

























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    0














    One work-around is to set a flag or an environment variable when running tests. Then check for these flags before initializing the Memory:



    Module1



    import os
    memflag = os.environ.get('UNITTESTING', False)
    memory = Memory(location= None if memflag else '/cache/')
    @memory.cache
    def heavy_function(...)
    .....


    unittest1



    os.environ["UNITTESTING"] = '1'
    import Module1
    .....
    unittest.run()
    del os.environ["UNITTESTING"]





    share|improve this answer






























      0














      One work-around is to set a flag or an environment variable when running tests. Then check for these flags before initializing the Memory:



      Module1



      import os
      memflag = os.environ.get('UNITTESTING', False)
      memory = Memory(location= None if memflag else '/cache/')
      @memory.cache
      def heavy_function(...)
      .....


      unittest1



      os.environ["UNITTESTING"] = '1'
      import Module1
      .....
      unittest.run()
      del os.environ["UNITTESTING"]





      share|improve this answer




























        0












        0








        0







        One work-around is to set a flag or an environment variable when running tests. Then check for these flags before initializing the Memory:



        Module1



        import os
        memflag = os.environ.get('UNITTESTING', False)
        memory = Memory(location= None if memflag else '/cache/')
        @memory.cache
        def heavy_function(...)
        .....


        unittest1



        os.environ["UNITTESTING"] = '1'
        import Module1
        .....
        unittest.run()
        del os.environ["UNITTESTING"]





        share|improve this answer















        One work-around is to set a flag or an environment variable when running tests. Then check for these flags before initializing the Memory:



        Module1



        import os
        memflag = os.environ.get('UNITTESTING', False)
        memory = Memory(location= None if memflag else '/cache/')
        @memory.cache
        def heavy_function(...)
        .....


        unittest1



        os.environ["UNITTESTING"] = '1'
        import Module1
        .....
        unittest.run()
        del os.environ["UNITTESTING"]






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 22 '18 at 13:51

























        answered Nov 22 '18 at 13:33









        skjernsskjerns

        18111




        18111






























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