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### Out of memory while enumerating vectors

I am trying to enumerate all vectors of a certain dimension with entries less then some prescribed values and then check some conditions on each of them. This is the code I was thinking about:

A = [(a,b,c,d) for a in range(100) for b in range (100) for c in range (100) for d in range (10)]

for f in A: if Condition(f): print f

The problem is that when the product of my ranges is larger than $10^7$ or so I get a MemoryError.

Is there a more efficient way of enumerating vectors or avoiding the MemoryError?

Thank you.