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83"""
Get book and author data from https://openlibrary.org
ISBN: https://en.wikipedia.org/wiki/International_Standard_Book_Number
"""
# /// script
# requires-python = ">=3.13"
# dependencies = [
# "httpx",
# ]
# ///
from json import JSONDecodeError
import httpx
def get_openlibrary_data(olid: str = "isbn/0140328726") -> dict:
"""
Given an 'isbn/0140328726', return book data from Open Library as a Python dict.
Given an '/authors/OL34184A', return authors data as a Python dict.
This code must work for olids with or without a leading slash ('/').
# Comment out doctests if they take too long or have results that may change
# >>> get_openlibrary_data(olid='isbn/0140328726') # doctest: +ELLIPSIS
{'publishers': ['Puffin'], 'number_of_pages': 96, 'isbn_10': ['0140328726'], ...
# >>> get_openlibrary_data(olid='/authors/OL7353617A') # doctest: +ELLIPSIS
{'name': 'Adrian Brisku', 'created': {'type': '/type/datetime', ...
"""
new_olid = olid.strip().strip("/") # Remove leading/trailing whitespace & slashes
if new_olid.count("/") != 1:
msg = f"{olid} is not a valid Open Library olid"
raise ValueError(msg)
return httpx.get(
f"https://openlibrary.org/{new_olid}.json", timeout=10, follow_redirects=True
).json()
def summarize_book(ol_book_data: dict) -> dict:
"""
Given Open Library book data, return a summary as a Python dict.
"""
desired_keys = {
"title": "Title",
"publish_date": "Publish date",
"authors": "Authors",
"number_of_pages": "Number of pages",
"isbn_10": "ISBN (10)",
"isbn_13": "ISBN (13)",
}
data = {better_key: ol_book_data[key] for key, better_key in desired_keys.items()}
data["Authors"] = [
get_openlibrary_data(author["key"])["name"] for author in data["Authors"]
]
for key, value in data.items():
if isinstance(value, list):
data[key] = ", ".join(value)
return data
if __name__ == "__main__":
import doctest
doctest.testmod()
while True:
isbn = input("\nEnter the ISBN code to search (or 'quit' to stop): ").strip()
if isbn.lower() in ("", "q", "quit", "exit", "stop"):
break
if len(isbn) not in (10, 13) or not isbn.isdigit():
print(f"Sorry, {isbn} is not a valid ISBN. Please, input a valid ISBN.")
continue
print(f"\nSearching Open Library for ISBN: {isbn}...\n")
try:
book_summary = summarize_book(get_openlibrary_data(f"isbn/{isbn}"))
print("\n".join(f"{key}: {value}" for key, value in book_summary.items()))
except JSONDecodeError:
print(f"Sorry, there are no results for ISBN: {isbn}.")