How To Print Rows In Python

In this tutorial, we will learn how to print rows in Python. Whether you are working with a CSV file or fetching the data from an external API, parsing and printing rows is a common programming problem.

Python, being a versatile language, offers multiple ways to accomplish this task. We will explore these methods in our tutorial.

Step 1 – Read the data

Let’s assume we have a CSV file called data.csv with the following content:

Name,Age,Gender
Alice,25,Female
Bob,30,Male
Cathy,22,Female
David,28,Male
Eva,24,Female

In this step, we will read the content of the file into a Python program. We will use the csv module, which is a built-in Python package for reading and writing CSV files.

1
2
3
4
5
6
import csv
 
file = "data.csv"
 
with open(file, "r") as csvfile:
    data = list(csv.reader(csvfile))

Step 2 – Print rows using a for loop

Once we have the data in a list format, we can use a simple for loop to iterate through the data and print each row.

1
2
for row in data:
    print(row)

The output will look like this:

['Name', 'Age', 'Gender']
['Alice', '25', 'Female']
['Bob', '30', 'Male']
['Cathy', '22', 'Female']
['David', '28', 'Male']
['Eva', '24', 'Female']

Step 3 – Print rows without the header

If you don’t want to print the header row, you can skip the first row in the loop.

1
2
for row in data[1:]:
    print(row)

The output will look like this:

['Alice', '25', 'Female']
['Bob', '30', 'Male']
['Cathy', '22', 'Female']
['David', '28', 'Male']
['Eva', '24', 'Female']

Step 4 – Print rows with specific conditions

You can also print rows based on certain conditions. For example, let’s only print the rows where the age is greater than 25.

1
2
3
for row in data[1:]:
    if int(row[1]) > 25:  # Age is at index 1
        print(row)

The output will look like this:

['Bob', '30', 'Male']
['David', '28', 'Male']

Full Code:

Here is the complete code we have discussed above:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
import csv
 
file = "data.csv"
 
with open(file, "r") as csvfile:
    data = list(csv.reader(csvfile))
 
print("Printing all rows:")
for row in data:
    print(row)
 
print("\nPrinting rows without header:")
for row in data[1:]:
    print(row)
 
print("\nPrinting rows with age > 25:")
for row in data[1:]:
    if int(row[1]) > 25:
        print(row)

Conclusion

In summary, printing rows in Python is a simple task if you know how to read and manipulate lists. You can use built-in functions such as csv.reader() to read the data into a list format, and then use a for loop to iterate through the list and print the rows based on your desired conditions.