Troubleshooting AttributeError: Unraveling the 'Module Serial has no Attribute Serial' Error

title: Troubleshooting AttributeError: Unraveling the 'Module Serial has no Attribute Serial' Error
description: This guide will help you understand and fix the AttributeError that occurs while using the 'serial' module in Python.


If you're working with the [`serial`]( module in Python to handle communication with serial devices, you might encounter the `AttributeError: 'module' object has no attribute 'Serial'` error. This guide will help you understand the cause of this error and provide step-by-step solutions to fix it.

## Understanding the AttributeError

The `AttributeError` occurs when you try to access an attribute or method that doesn't exist in an object or module. In this case, the error is raised because Python is unable to find the `Serial` attribute within the `serial` module. This issue is commonly caused by one of the following reasons:

1. The `serial` module is not installed or not properly installed.
2. There's a naming conflict between your script and the `serial` module.

## Solutions to Fix the AttributeError

### Solution 1: Install or Reinstall the `serial` Module

To ensure that the `serial` module is installed correctly, you can use the following command to install or reinstall the `serial` module using `pip`:

pip install --upgrade --force-reinstall pyserial

Solution 2: Resolve Naming Conflicts

If you have named your Python script, it can cause a naming conflict with the serial module, leading to the AttributeError. To fix this, you need to:

  1. Rename your Python script to something else, for example,
  2. Remove any serial.pyc or __pycache__ folders that might have been generated due to the naming conflict.
  3. Restart your Python interpreter and re-run your script.

By following these steps, you should be able to resolve the AttributeError and use the serial module without any issues.

Frequently Asked Questions (FAQ)

How do I check if the serial module is installed correctly?

You can check if the serial module is installed by running the following command:

pip show pyserial

If the module is installed, you'll see information about the installed version. If it's not installed, there will be no output.

What are some common reasons for AttributeError in Python?

AttributeError in Python can occur due to various reasons, such as:

  1. Trying to access a non-existent attribute or method in an object or module.
  2. Naming conflicts between your script and a module.
  3. Incorrect imports of modules or functions.

How do I ensure that I'm using the correct version of the serial module?

You can use the following command to check the installed version of the serial module:

import serial

Make sure the version matches the version required by your project or the latest version available on the PySerial package page.

What are some alternatives to the serial module in Python?

Some alternatives to the serial module for handling serial communication in Python include:

  1. pyserial-asyncio: An extension of PySerial that provides support for asyncio.
  2. serialio: A C++ library with Python bindings for cross-platform serial communication.

How do I list available serial ports in Python?

You can use the module to list available serial ports. Here's a simple example:


ports =
for port in ports:

This script will print a list of available serial port names.

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