Why does this while loop using a data frame attribute not work?

Question

While I'm still learning Python, I'm just baffled by this one. This while loop gets the error: "AttributeError: 'list' object has no attribute 'empty'" and I cannot figure out why. Your help is appreciated.

import pandas as pd
import numpy as np

tickData = pd.DataFrame([])

print (tickData.empty)

while tickData.empty:
  tickData
  tickData = [1,2,3]
  print (tickData)
  
print (tickData)

You are changing tickData from a dataframe to a list with tickData=[1,2,3], which doesn't support .empty — Chris
– Chris, Commented Jul 8, 2020 at 18:54
you redefine tickData with every iteration and your list doesn't have an .empty method — Paul H
– Paul H, Commented Jul 8, 2020 at 18:54

Aparna · Accepted Answer · 2020-07-08 19:12:14Z

1

Initially you had given tickData as a Dataframe and later on, you are changing that to a list datatype which is not having any attribute empty. The while loop is based upon the condition tickData.empty and hence it throws the attribute error.

Hope this helps.

answered Jul 8, 2020 at 19:12

Aparna

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