扩展在python中不起作用

Question

我正在尝试检查哪个部分花费了我的python程序的最大内存。使用这篇文章http://practicalpython.blogspot.com/2017/03/monitoring-memory-usage-in-jupyter.html。

代码是：

OPTIONS (SKIP=0, direct=true)
LOAD DATA
    INFILE "..\test.csv" BADFILE ".\test.bad" DISCARDFILE ".\test.dis"
INSERT
INTO TABLE table_test
    FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
    TRAILING NULLCOLS
    ( 
        cust_ID,
        cust_TYPE,
        X_DATE     BOUNDFILLER,
        X_TIME     BOUNDFILLER,
        cust_date  EXPRESSION "TO_DATE(:X_DATE || ' ' || :X_TIME, 'YYYY-MM-DD HH24.MI.SS')"
    )  

然而，我收到了错误

import numpy as np
import pandas as pd
def show_mem_usage():
    '''Displays memory usage from inspection
    of global variables in this notebook'''
    gl = sys._getframe(1).f_globals
    vars= {}
    for k,v in list(gl.items()):
        # for pandas dataframes
        if hasattr(v, 'memory_usage'):
            mem = v.memory_usage(deep=True)
            if not np.isscalar(mem):
                mem = mem.sum()
            vars.setdefault(id(v),[mem]).append(k)
        # work around for a bug
        elif isinstance(v,pd.Panel):
            v = v.values
        vars.setdefault(id(v),[sys.getsizeof(v)]).append(k)
    total = 0
    for k,(value,*names) in vars.items():
        if value>1e6:
            print(names,"%.3fMB"%(value/1e6))
        total += value
    print("%.3fMB"%(total/1e6))

任何人都知道发生了什么？感谢。