Python script to bulk download free Springer books

springer.py

#!/usr/bin/env python

import os
import csv
import urllib
import wget

with open("./textbooks.csv", newline="") as csvfile:
    textbooks = csv.DictReader(csvfile)

    for book in textbooks:
        isbn = book["Print ISBN"]
        print(f"\nDownloading {isbn}")
        book_dir = f"./{isbn}"
        os.mkdir(book_dir)
        doi_url = book["DOI URL"]
        doi = doi_url.replace("http://doi.org/", "")
        pdf_url = f"https://link.springer.com/content/pdf/{doi}.pdf"
        epb_url = f"https://link.springer.com/download/epub/{doi}.epub"
        try:
            wget.download(pdf_url, f"{book_dir}/{isbn}.pdf")
        except urllib.error.HTTPError as e:
            print("\nNo PDF.")
        try:
            wget.download(epb_url, f"{book_dir}/{isbn}.epub")
        except urllib.error.HTTPError as e:
            print("\nNo EPUB.")