Pandas add column from list

# creating a list for new column
places = ['Nellore', 'Mumbai', 'Andhra']

# we are using 'Places' as column name
# adding the list to the dataframe as column
dataframe['Places'] = places

Create new column with length of old column value python

df['length']  = df['column'].str.len()

Add column python list

T = NP.random.randint(0, 10, 20).reshape(5, 4)
c = NP.random.randint(0, 10, 5)
r = NP.random.randint(0, 10, 4)
# add a column to T, at the front:
NP.insert(T, 0, c, axis=1)
# add a column to T, at the end:
NP.insert(T, 4, c, axis=1)
# add a row to T between the first two rows:
NP.insert(T, 2, r, axis=0)

-1

Source: stackoverflow.com

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