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Python Tutorial

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Python Lists Access List Items Change List Items Add List Items Remove List Items Loop Lists List Comprehension Sort Lists Copy Lists Join Lists List Methods List Exercises Code Challenge

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Python Sets Access Set Items Add Set Items Remove Set Items Loop Sets Join Sets Frozenset Set Methods Set Exercises Code Challenge

Python Dictionaries

Python Dictionaries Access Items Change Items Add Items Remove Items Loop Dictionaries Copy Dictionaries Nested Dictionaries Dictionary Methods Dictionary Exercises Code Challenge

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Machine Learning

Getting Started Mean Median Mode Standard Deviation Percentile Data Distribution Normal Data Distribution Scatter Plot Linear Regression Polynomial Regression Multiple Regression Scale Train/Test Decision Tree Confusion Matrix Hierarchical Clustering Logistic Regression Grid Search Categorical Data K-means Bootstrap Aggregation Cross Validation AUC - ROC Curve K-nearest neighbors

Python DSA

Python DSA Lists and Arrays Stacks Queues Linked Lists Hash Tables Trees Binary Trees Binary Search Trees AVL Trees Graphs Linear Search Binary Search Bubble Sort Selection Sort Insertion Sort Quick Sort Counting Sort Radix Sort Merge Sort

Python MySQL

MySQL Get Started MySQL Create Database MySQL Create Table MySQL Insert MySQL Select MySQL Where MySQL Order By MySQL Delete MySQL Drop Table MySQL Update MySQL Limit MySQL Join

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Python Cert

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Python How To

Remove List Duplicates Reverse a String Add Two Numbers

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Python Dictionary Length

❮ Python Glossary

Dictionary Length

To determine how many items (key-value pairs) a dictionary has, use the len() method.

Example

Print the number of items in the dictionary:

print(len(thisdict))

Try it Yourself »

Related Pages

Python Dictionaries Tutorial Dictionary Access Dictionary Items Change Dictionary Item Loop Dictionary Items Check if Dictionary Item Exists Add Dictionary Item Remove Dictionary Items Copy Dictionary Nested Dictionaries

❮ Python Glossary

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