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)}")pass list of columns names in pandas
>>> import pandas
>>> # create three rows of [0, 1, 2]
>>> df = pandas.DataFrame([range(3), range(3), range(3)])
>>> print df
0 1 2
0 0 1 2
1 0 1 2
2 0 1 2
>>> my_columns = ["a", "b", "c"]
>>> df.columns = my_columns
>>> print df
a b c
0 0 1 2
1 0 1 2
2 0 1 2Copyright © 2021 Codeinu
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