[Python] Using list to find variables from data in rows

Discussão em 'Python' iniciado por Stack, Novembro 26, 2025.

  1. Stack

    Stack Membro Participativo

    I am trying to find a combination where it will go through the data to find matched variables for any value from the list First_row is found, any value from the list Second_row and any value from the list Third_row is found.

    import pandas as pd
    import numpy as np
    import csv
    df= pd.read_csv ("data.csv")


    b2=1 #assigning variables
    c2=2
    d2=3
    b3=4
    c3=5
    d3=6
    b4=7
    c4=8
    d4=9

    First_row = [b2, c2, d2] #list for first row
    Second_row = [b3, c3, d3] #list for second row
    Third_row = [b4, c4, d4] #list for third row

    for n in range(len(df)): # data
    for i in range(len(First_row)):
    if df.loc[n].isin(First_row).any(): # Found a value from First_row
    for i in range(len(Second_row)):
    if df.loc[n+1].isin(Second_row).any(): ## Found a value from Second_row
    for i in range(len(Third_row)):
    if df.loc[n+2].isin(Third_row).any(): # Found a value from Third_row
    print(First_row,Second_row,Third_row) # print the variables


    If the first row has any one of [b2, c2, d2], second row has any one of [b3, c3, d3] and third row has any one of [b4, c4, d4] then it will print the variables, not the assigned value.

    It will search as b2,b3,b4, -> b2,b3,c4, -> b2,b3,d4, -> b2,c3,b4, etc. and print the variables (not the assigned value) when found and continue. I am trying to run it but it's showing "only list-like objects are allowed to be passed to isin()"

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