Pandas .pipe() .apply() .transform() .map()

pandas_pipe.txt

def inve(x):
    print(type(x), x)


s = pd.Series([1,2,3])
s.pipe(inve)  # series
s.apply(inve)  # int 1
s.transform(inve)  # int 1
s.map(inve)  # int 1

df = pd.DataFrame({'a': [1,2,3], 'b': [4,5,6]})
df.pipe(inve)  # df
df.apply(inve)  # series
df.transform(inve)  # series
df.applymap(inve)  # int 1