Sample labels from excel file in order to put them on x-axis and y-axis of a plot

[hobbyist]

Thank you for your code! I also use this source: https://stackoverflow.com/questions/4679...ws-to-plot and I am trying this code with the help of your code above:

import pandas as pd
from pathlib import Path
import os
import numpy as np
import matplotlib.pyplot as plt

 
def show_incremental_rows(filename, increment):
    df = pd.read_excel(filename)
    ser = df.iloc[::increment, :]
    print(ser)
 
    fig, ax = plt.subplots()
    ser.plot(ax=ax)
    ax.set_xlabel("date")
    ax.set_ylabel("temperature")
    plt.show() 
 
def main():
    os.chdir(os.path.abspath(os.path.dirname(__file__)))
    show_incremental_rows('/home/hobbyist/Desktop/temperatures.xlsx', 1000)
 
if __name__ == '__main__':
    main()

Although it prints the excel rows in the terminal, it does not plot them...I believe this command

read_excel

reads the whole excel file, so I do not need to specify something more...
Any ideas what is wrong here?