Reading CSV Files With Pandas

We can read a Python CSV files with Pandas using the pandas.read_csv() function. Here’s an example:

Suppose, we have a employees.csv file and content inside it will be:

name,department,birthday_month
John Smith,HR,July
Alice Johnson,IT,October
Bob Williams,Finance,January

In this example, pd.read_csv() reads the CSV file into a Pandas DataFrame. The resulting DataFrame can be used for various data manipulation and analysis tasks.

Python3




import pandas as pd
 
# Read the CSV file into a DataFrame
df = pd.read_csv('employees.csv')
 
# Display the DataFrame
print(df)


Output:

             name department birthday_month
0 John Smith HR July
1 Alice Johnson IT October
2 Bob Williams Finance January

We can access specific columns, filter data, and perform various operations using pandas DataFrame functionality. For example, if we want to access the “name” column, we can use df['name'].

Python3




# Access the 'name' column
names = df['name']
print(names)


Output:

0        John Smith
1 Alice Johnson
2 Bob Williams
Name: name, dtype: object

Working with csv files in Python

Python is one of the important fields for data scientists and many programmers to handle a variety of data. CSV (Comma-Separated Values) is one of the prevalent and accessible file formats for storing and exchanging tabular data.

In article explains What is CSV. Working with CSV files in Python, Reading, and Writing to a CSV file, and Storing Emails in CSV files.

Table of Content

  • What is a CSV File? 
  • Working with CSV files in Python
  • Reading a CSV file
  • Reading CSV Files Into a Dictionary With csv
  • Writing to a CSV file
  • Writing a dictionary to a CSV file
  • Reading CSV Files With Pandas
  • Writing CSV Files with Pandas
  • Storing Emails in CSV files

Similar Reads

What is a CSV File?

CSV (Comma Separated Values) is a simple file format used to store tabular data, such as a spreadsheet or database. A CSV file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format. For working CSV files in Python, there is an inbuilt module called CSV....

Working with CSV files in Python

Below are some operations that we perform while working with Python CSV files in Python...

Reading a CSV file

Reading from a CSV file is done using the reader object. The CSV file is opened as a text file with Python’s built-in open() function, which returns a file object. In this example, we first open the CSV file in READ mode, file object is converted to csv.reader object and further operation takes place. Code and detailed explanation is given below....

Reading CSV Files Into a Dictionary With csv

...

Writing to a CSV file

We can read a CSV file into a dictionary using the csv module in Python and the csv.DictReader class. Here’s an example:...

Writing a dictionary to a CSV file

...

Reading CSV Files With Pandas

To write to a CSV file, we first open the CSV file in WRITE mode. The file object is converted to csv.writer object and further operations takes place. Code and detailed explanation is given below....

Writing CSV Files with Pandas

...

Storing Emails in CSV files

To write a dictionary to a CSV file, the file object (csvfile) is converted to a DictWriter object. Detailed example with explanation and code is given below....

Contact Us