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This example demonstrates a gallery entry without any figures. It shows how sphinx-gallery handles code-focused examples with extensive documentation and no visual output.

Note

Examples without figures use a default placeholder thumbnail in the gallery view.

import matplotlib.pyplot as plt

Working with Data Structures

This section shows basic Python data manipulation without plots.

data = {
    "name": "Example",
    "values": [1, 2, 3, 4, 5],
    "metadata": {"version": "1.0", "author": "Demo"},
}

print("Data structure:")
for key, value in data.items():
    print(f"  {key}: {value}")

Data structure:
  name: Example
  values: [1, 2, 3, 4, 5]
  metadata: {'version': '1.0', 'author': 'Demo'}

List Comprehensions

Demonstrating various list operations and transformations.

numbers = list(range(10))
print(f"Original: {numbers}")

# Filter even numbers
evens = [n for n in numbers if n % 2 == 0]
print(f"Even numbers: {evens}")

# Square each number
squares = [n**2 for n in numbers]
print(f"Squares: {squares}")

Original: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Even numbers: [0, 2, 4, 6, 8]
Squares: [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

String Formatting

Various ways to format strings in Python.

name = "World"
count = 42

# f-string (recommended)
print(f"Hello, {name}! Count: {count}")

# format method
print("Hello, {}! Count: {}".format(name, count))

Hello, World! Count: 42
Hello, World! Count: 42

Summary

This example demonstrates that sphinx-gallery can handle pure Python examples without any matplotlib figures. The output from print() statements is captured and displayed.

Note: A minimal hidden plot is included to ensure execution.

# sphinx_gallery_thumbnail_path = '_static/no_image.png'

plt.figure(figsize=(1, 1))
plt.axis("off")
plt.close()