pandas to pickle

1import pandas as pd
2df.to_pickle(file_name) # save
3df = pd.read_pickle(file_name) # load

1# use pickle format to save columns with complex data (like list) 
2# and keep their structure
3
4>>> original_df = pd.DataFrame({"foo": range(5), "bar": range(5, 10)})
5>>> original_df
6   foo  bar
70    0    5
81    1    6
92    2    7
103    3    8
114    4    9
12>>> original_df.to_pickle("./dummy.pkl") # use read_pickle to read the dataframe