df = pd.read_csv('file.csv') adds random numbers and commas to file. Pandas in python

Question

I am trying to read a csv file using pandas as so:

df = pd.read_csv('file.csv')

Here is the file before:

,schoolId,Name,Meetings Present
0,991,Jimmy Nuetron,2
1,992,Jimmy Fuetron,6
2,993,Cam Nuetron,4

Here is the file after:

,Unnamed: 0,schoolId,Name,Meetings Present
0,0.0,991.0,Jimmy Nuetron,2.0
1,1.0,992.0,Jimmy Fuetron,6.0
2,2.0,993.0,Cam Nuetron,4.0
0,,,,3

Why is it adding the numbers and columns when I run the read_csv method?

How can I prevent this without adding a seperator?

Answer 1

pandas.read_csv is actuallly not adding the column Unnamed: 0 because it already exists in your .csv (who apparently/probably was generated by the method pandas.DataFrame.to_csv ).

You can get rid of this (extra) column by making it as an index:

df = pd.read_csv('file.csv', index_col=0)