Convert Series of lists to one Series in Pandas Last Updated : 18 Aug, 2020 Improve Improve Like Article Like Save Share Report In this program, we will see how to convert a series of lists of into one series, in other words, we are just merging the different lists into one single list, in Pandas. We will be using the stack() method to perform this task. The line will be Series.apply(Pandas.Series).stack().reset_index(drop = True). The reset_index() method will reset the index of the DataFrame/Series. Example 1 : Merging multiple series lists of integers. # importing the module import pandas as pd # creating a Pandas series of lists s = pd.Series([[2, 4, 6, 8], [1, 3, 5, 7], [2, 3, 5, 7]]) print("Printing the Original Series of list") print(s) # converting series of list into one series s = s.apply(pd.Series).stack().reset_index(drop = True) print("\nPrinting the converted series") print(s) Output : Example 2 : Merging multiple series lists of characters. # importing the module import pandas as pd # creating a Pandas series of lists s = pd.Series([['g', 'e', 'e', 'k', 's'], ['f', 'o', 'r'], ['g', 'e', 'e', 'k', 's']]) print("Printing the Original Series of list") print(s) # converting series of list into one series s = s.apply(pd.Series).stack().reset_index(drop = True) print("\nPrinting the converted series") print(s) Output : Like Article Suggest improvement Next Converting Series of lists to one Series in Pandas Share your thoughts in the comments Add Your Comment Please Login to comment... Similar Reads Converting Series of lists to one Series in Pandas Add a Pandas series to another Pandas series Pandas Series dt.weekofyear Method | Get Week of Year in Pandas Series Pandas Series dt.minute | Extract Minute from DateTime Series in Pandas Pandas Series dt.dayofweek | Get Day of Week from DateTime Series in Pandas Pandas Series dt.freq | Retrieve Frequency of Pandas Time Series Pandas Series dt.daysinmonth | Get Number of Days in Month in Pandas Series Pandas Series dt.normalize() | Normalize Time in Pandas Series Python | Pandas Series.astype() to convert Data type of series Convert a series of date strings to a time series in Pandas Dataframe Like A Akashkumar17 Follow Article Tags : Python Pandas-exercise Python pandas-series Python-pandas Python Practice Tags : python