df[['First','Last']] = df.Name.str.split(" ", expand=True)
df[['A', 'B']] = df['AB'].str.split('@', 1, expand=True)
#'@' - Split at @
#1 = Axis 1 i.e on column level
subevents = []
for element in events["Acheteur public"]:
subevents.append(element.split(': ', 1)[1])
acheteurs = pd.DataFrame (subevents, columns = ['Acheteur public'])
acheteurs.head()