The count() method returns the number of times an element appears in a list. For example, the element appears twice in the list: random_list.
>>> random_list = [2, 9, 8, 4, 3, 2, 1, 7]
>>> random_list.count(2)
2
Counting the instances of an element:
by Prof. Diwakar Vaish, Srihari Yamanoor, Sai Yamanoor, Dr. Steven Lawrence Fernand
Getting Started with Python for the Internet of Things
- Title Page
- Copyright and Credits
- About Packt
- Contributors
- Preface
- Getting Started with a Raspberry Pi 3 Computer
- Introduction
- Connecting to Raspberry Pi
- Using NOOBS to set up your Raspberry Pi SD card
- Networking and connecting your Raspberry Pi to the internet via an Ethernet port, using a CAT6 Ethernet cable
- Using built-in Wi-Fi and Bluetooth on Raspberry Pi
- Configuring your network manually
- Networking directly to a laptop or computer
- Networking and connecting your Raspberry Pi to the internet via a USB Wi-Fi dongle
- Connecting to the internet through a proxy server
- Connecting remotely to Raspberry Pi over the network using VNC
- Connecting remotely to Raspberry Pi over the network using SSH (and X11 forwarding)
- Sharing the home folder of Raspberry Pi with SMB
- Keeping Raspberry Pi up to date
- Dividing Text Data and Building Text Classifiers
- Using Python for Automation and Productivity
- Predicting Sentiments in Words
- Detecting Edges and Contours in Images
- Building Face Detector and Face Recognition Applications
- Using Python to Drive Hardware
- Sensing and Displaying Real-World Data
- Introduction
- Using devices with the I2C bus
- Reading analog data using an analog-to-digital converter
- Logging and plotting data
- Extending the Raspberry Pi GPIO with an I/O expander
- Capturing data in an SQLite database
- Viewing data from your own webserver
- Sensing and sending data to online services
- Building Neural Network Modules for Optical Character Recognition
- Arithmetic Operations, Loops, and Blinky Lights
- Conditional Statements, Functions, and Lists
- Communication Interfaces
- UART – serial port
- The SPI interface
- Summary
- Data Types and Object-Oriented Programming in Python
- Lists
- Operations that could be performed on a list
- Append element to list:
- Remove element from list:
- Retrieving the index of an element
- Popping an element from the list
- Counting the instances of an element:
- Inserting element at a specific position:
- Extending a list
- Clearing the elements of a list
- Sorting the elements of a list
- Reverse the order of elements in list
- Create copies of a list
- Accessing list elements
- List membership
- Let's build a simple game!
- Operations that could be performed on a list
- Dictionaries
- Tuples
- Sets
- OOP in Python
- Speaker controller
- Summary
- Lists
- File I/O and Python Utilities
- Requests and Web Frameworks
- Awesome Things You Could Develop Using Python
- Robotics 101
- Using GPIOs as Input
- Making a Gardener Robot
- Basics of Motors
- Bluetooth-Controlled Robotic Car
- Sensor Interface for Obstacle Avoidance
- Making Your Own Area Scanner
- Basic Switching
- Recognizing Humans with Jarvis
- Making Jarvis IoT Enabled
- Giving Voice to Jarvis
- Gesture Recognition
- Machine Learning
- Making a Robotic Arm
- Other Books You May Enjoy
Counting the instances of an element:
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