[Python] Filtering null values [closed]

python null value is not filtering

query_filters.append(AmazonProductDetailsRDS.price.isnot(None)) if filters.price_min is not None: query_filters.append(AmazonProductDetailsRDS.price >= filters.price_min) if filters.price_max is not None: query_filters.append(AmazonProductDetailsRDS.price <= filters.price_max)
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I tried the above line, the values are not filtering. when i give min value null values are still showing.

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