Django : django rest Error - AttributeError: module 'collections' has no attribute 'MutableMapping'

Django : django rest Error - AttributeError: module 'collections' has no attribute 'MutableMapping'
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Django : django rest Error - AttributeError: module 'collections' has no attribute 'MutableMapping'
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'collections' 'MutableMapping' attribute rest Error Django has : django module no - AttributeError: