When I used pip install leveldb in my MAC I got the error below, I searched the whole internet without any reply I could take with, my python env is 2.7, what made me upset
As you can see from the error message, the stdlibc++ implementation of the standard library cannot be found. One can 'resolve' this issue by instead using the stdc++ implementation. One way of doing this is by amending the flag CPPFLAG prior to your pip install: