I am trying to convert this column in float type from object type but it is giving this error.

import pandas as pddf = pd.DataFrame({'col1': ['[-0.8783137, 0.05478287, -0.08827557, 0.69203985, 0.06209986]', '[0.31444644, -0.6546649, 0.7211526, 0.9819127, 0.74042267]']})df['col1'] = df['col1'].apply(lambda x: [float(i) for i in x.strip('[]').split(',')])
df = df.astype(float)
print(df)

You can do the "explode" method, which allows to transform each element of a list into a row:

df['col1'] = df['col1'].apply(lambda x: x.strip('][').split(', ')) # turn into listsdf = df.explode('col1', ignore_index=True) # expanddf = df.astype("float") # change the data type