There are a lot of tutorial about how to use CSV data in Python. But sometimes we want to read just a single line of data from a csv file. This can be done by using pandas or the built-in csv module.
read one line using csv module
The easiest way to read one single line of data from a csv file is to use the built-in csv module.
# open the 'myfile.csv' file
with open('myfile.csv', newline='') as mf:
# read the csv file
reader = csv.reader(mf)
# read the first line
one_line = next(reader)
read one line using pandas
To use pandas, we first need to import the pandas module using a import statement like shown below. Then we can read the first row by specifying the nrows parameter of the read_csv() method.
# import pandas module and specify suffix pd
import pandas as pd
# read 1 row of the specified csv file 'myfile.csv'
one_line = pd.read_csv("myfile.csv", nrows=1)
We can continue reading the next line of data by repeating the statement for the first line.