如何使用熊猫从Python中的txt文件计算属性（列）？

Question

I have a txt file that has rows and columns of data in it. I am trying to figure out how to count the number of columns (attributes) in the whole txt file. Here is my code to read the txt file and to count the columns but it is giving me the wrong answer.

    import pandas as pd 

    data_file = pd.read_csv('3human_evolution.txt')
    data_file.columns = data_file.columns.str.strip()
    A=len(data_file.columns)
    print(A)

Answer 1

len gives you all elements in the DataFrame (product of rows and columns). The number of rows and columns are accessible with DataFrame.shape . shape gives you a tuple where the first entry is the number of rows and the second the number of columns. So you can print the number of columns with:

print(data_file.shape[1])