create dataframe column from list code example

Example 1: how to get a dataframe column as a list

import pandas as pd

data_dict = {'one': pd.Series([1, 2, 3], index=['a', 'b', 'c']),
             'two': pd.Series([1, 2, 3, 4], index=['a', 'b', 'c', 'd'])}

df = pd.DataFrame(data_dict)

print(f"DataFrame:\n{df}\n")
print(f"column types:\n{df.dtypes}")

col_one_list = df['one'].tolist()

col_one_arr = df['one'].to_numpy()

print(f"\ncol_one_list:\n{col_one_list}\ntype:{type(col_one_list)}")
print(f"\ncol_one_arr:\n{col_one_arr}\ntype:{type(col_one_arr)}")

Example 2: pandas list to df

# import pandas as pd 
import pandas as pd 
  
# list of strings 
lst = ['Geeks', 'For', 'Geeks', 'is',  
            'portal', 'for', 'Geeks'] 
  
# Calling DataFrame constructor on list 
df = pd.DataFrame(lst) 
df

Example 3: get dataframe column into a list

df_gearME = pd.read_excel('Gear M&Es.xlsx')
df_gearME['ColA'].to_list()