How to Print a Dictionary in Python: Simple Examples

To print a dictionary in Python, use the print() function with the dictionary variable inside it. This will display the dictionary's keys and values in a readable format.

Syntax

Use the print() function with your dictionary variable to display its contents. The dictionary is enclosed in curly braces {} with key-value pairs separated by colons.

• print(dictionary): Prints the whole dictionary.

python

print(my_dict)

Example

This example shows how to create a dictionary and print it using the print() function. The output displays the dictionary's keys and values.

python

my_dict = {'name': 'Alice', 'age': 30, 'city': 'New York'}
print(my_dict)

Output

{'name': 'Alice', 'age': 30, 'city': 'New York'}

Common Pitfalls

One common mistake is trying to print dictionary keys or values without accessing them properly. Another is expecting the dictionary to print in a sorted order by default, but Python dictionaries preserve insertion order.

Also, printing a dictionary inside a string without converting it can cause errors.

python

my_dict = {'a': 1, 'b': 2}

# Wrong: Trying to print keys without accessing
#print(my_dict['c'])  # KeyError because 'c' does not exist

# Right: Print keys safely
print(my_dict.get('c', 'Key not found'))  # Prints 'Key not found'

# Wrong: Concatenating dictionary with string
# print("Dict: " + my_dict)  # TypeError

# Right: Use comma or f-string
print("Dict:", my_dict)
print(f"Dict: {my_dict}")

Output

Key not found
Dict: {'a': 1, 'b': 2}
Dict: {'a': 1, 'b': 2}

Quick Reference

Tips for printing dictionaries in Python:

• Use print(dictionary) to display the whole dictionary.
• Use dictionary.get(key, default) to safely access values.
• Use f"{dictionary}" or print(..., dictionary) to include dictionaries in strings.
• Dictionaries preserve insertion order in Python 3.7+.

Key Takeaways

Use print(dictionary) to display the entire dictionary easily.

Access dictionary values safely with dictionary.get(key, default) to avoid errors.

Include dictionaries in strings using f-strings or commas, not string concatenation.

Python dictionaries keep the order of items as you add them (Python 3.7+).