MemoryError：无法为形状为 (5844379795,) 且数据类型为 int64 的数组分配 43.5 GiB

Question

I have a large dataframe and I am trying to update one column:

Dataframe:

I would like to update the last column IsFraudsterStatus .

My Code:

df= pd.concat(chunk_list,)
    def expand_fraud(no_fraud, fraud, col_name):
        t = pd.merge(no_fraud, fraud, on=col_name)
        if len(t):
            df.loc[df.ID.isin(t.ID_x), "IsFraudsterStatus"] = 1
            return True
        return False
    while True:
        added_fraud = False
        fraud = df[df.IsFraudsterStatus == 1]
        no_fraud = df[df.IsFraudsterStatus == 0]
        added_fraud |= expand_fraud(no_fraud, fraud, "DeviceId")
        added_fraud |= expand_fraud(no_fraud, fraud, "Email")
        added_fraud |= expand_fraud(no_fraud, fraud, "MobileNo")
        if not added_fraud:
            break

Error:

Answer 1

Using Dask has solved all the "Memory Error" problems.