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68ca61ecb7
* Add search book via ISBN using openlibrary.org API * FIX: parameters type hints and isbn sizes * Add doctests * Update search_books_by_isbn.py Co-authored-by: Christian Clauss <cclauss@me.com>
77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
"""
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Get book and author data from https://openlibrary.org
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ISBN: https://en.wikipedia.org/wiki/International_Standard_Book_Number
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"""
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from json import JSONDecodeError # Workaround for requests.exceptions.JSONDecodeError
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import requests
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def get_openlibrary_data(olid: str = "isbn/0140328726") -> dict:
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"""
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Given an 'isbn/0140328726', return book data from Open Library as a Python dict.
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Given an '/authors/OL34184A', return authors data as a Python dict.
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This code must work for olids with or without a leading slash ('/').
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# Comment out doctests if they take too long or have results that may change
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# >>> get_openlibrary_data(olid='isbn/0140328726') # doctest: +ELLIPSIS
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{'publishers': ['Puffin'], 'number_of_pages': 96, 'isbn_10': ['0140328726'], ...
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# >>> get_openlibrary_data(olid='/authors/OL7353617A') # doctest: +ELLIPSIS
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{'name': 'Adrian Brisku', 'created': {'type': '/type/datetime', ...
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>>> pass # Placate https://github.com/apps/algorithms-keeper
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"""
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new_olid = olid.strip().strip("/") # Remove leading/trailing whitespace & slashes
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if new_olid.count("/") != 1:
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raise ValueError(f"{olid} is not a valid Open Library olid")
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return requests.get(f"https://openlibrary.org/{new_olid}.json").json()
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def summerize_book(ol_book_data: dict) -> dict:
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"""
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Given Open Library book data, return a summary as a Python dict.
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>>> pass # Placate TheAlgorithms @
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"""
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desired_keys = {
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"title": "Title",
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"publish_date": "Publish date",
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"authors": "Authors",
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"number_of_pages": "Number of pages:",
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"first_sentence": "First sentence",
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"isbn_10": "ISBN (10)",
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"isbn_13": "ISBN (13)",
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}
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data = {better_key: ol_book_data[key] for key, better_key in desired_keys.items()}
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data["Authors"] = [
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get_openlibrary_data(author["key"])["name"] for author in data["Authors"]
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]
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data["First sentence"] = data["First sentence"]["value"]
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for key, value in data.items():
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if isinstance(value, list):
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data[key] = ", ".join(value)
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return data
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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while True:
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isbn = input("\nEnter the ISBN code to search (or 'quit' to stop): ").strip()
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if isbn.lower() in ("", "q", "quit", "exit", "stop"):
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break
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if len(isbn) not in (10, 13) or not isbn.isdigit():
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print(f"Sorry, {isbn} is not a valid ISBN. Please, input a valid ISBN.")
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continue
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print(f"\nSearching Open Library for ISBN: {isbn}...\n")
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try:
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book_summary = summerize_book(get_openlibrary_data(f"isbn/{isbn}"))
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print("\n".join(f"{key}: {value}" for key, value in book_summary.items()))
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except JSONDecodeError: # Workaround for requests.exceptions.RequestException:
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print(f"Sorry, there are no results for ISBN: {isbn}.")
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