df.drop无法正常工作

Question

I am very stuck with this, obviously I have little experience, so every opinion is welcome:

df = pd.concat((pd.read_csv(f,delimiter = '|') for f in onlyfiles)
# I have to delete the column 'Unnamed: 0'
df = df.drop(['Unnamed: 0'])
df.head()

If somebody can tell something about this 'Unnamed: 0' column, I don't understand what's the use of this?

Thanks!

Answer 1

DOCS

'Unnamed: 0' is a column name. You'll need to pass the axis=1 parameter to drop

df = df.drop(['Unnamed: 0'], axis=1)

Because the axis parameter is the second parameter, that can be shortened to

df = df.drop(['Unnamed: 0'], 1)

Answer 2

如果您想将该列放到原位，则有另一种方法。

del(df['Unnamed: 0'])