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How to Read a CSV File from Amazon S3 Using Python (With Headers and Rows Displayed)

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  Introduction If you’re working with cloud data, especially on AWS, chances are you’ll encounter data stored in CSV files inside an Amazon S3 bucket . Whether you're building a data pipeline or a quick analysis tool, reading data directly from S3 in Python is a fast, reliable, and scalable way to get started. In this blog post, we’ll walk through: Setting up access to S3 Reading a CSV file using Python and Boto3 Displaying headers and rows Tips to handle larger datasets Let’s jump in! What You’ll Need An AWS account An S3 bucket with a CSV file uploaded AWS credentials (access key and secret key) Python 3.x installed boto3 and pandas libraries installed (you can install them via pip) pip install boto3 pandas Step-by-Step: Read CSV from S3 Let’s say your S3 bucket is named my-data-bucket , and your CSV file is sample-data/employees.csv . ✅ Step 1: Import Required Libraries import boto3 import pandas as pd from io import StringIO boto3 is...
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How to Fix a Byte-like Object is Required in Python

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Here is a way to fix TypeError: a bytes-like object is required, not 'str.' The error occurs while writing a file due to incorrect usage of the file mode. Below, you'll see how to solve this error. Python Open File in Write Mode Here's a way to open files in write mode. The "wb" mode's purpose is to write input to a file. If the file does not exist, it creates one.   After executing it, it throws an error highlighted in red. The file mode causes to error. Below, you'll see how to fix it and the details. a=open("file1.txt", 'wb') b=a.write('I am writing data to a file!') print(b) Traceback (most recent call last):  File "main.py", line 2, in <module>   b=a.write('I am writing data to a file!') TypeError:  a bytes-like object is required, not 'str' ** Process exited - Return Code: 1 ** Press Enter to exit terminal How to Fix the Error You can write data to a file in two ways a string or bytes. Th...
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