Làm thế nào để bạn tải xuống một hình ảnh từ một url trong python?

Quét web là một kỹ thuật để lấy dữ liệu từ các trang web. Khi lướt web, nhiều trang web không cho phép người dùng lưu dữ liệu cho mục đích cá nhân. Một cách là sao chép-dán dữ liệu theo cách thủ công, vừa tẻ nhạt vừa tốn thời gian. Web Scraping là quá trình tự động hóa quá trình trích xuất dữ liệu từ các trang web. Trong bài viết này, chúng tôi sẽ thảo luận về cách chúng tôi có thể tải xuống tất cả hình ảnh từ một trang web bằng python

Mô-đun cần thiết

• bs4. Beautiful Soup(bs4) là một thư viện Python để lấy dữ liệu ra khỏi các tệp HTML và XML. Mô-đun này không được tích hợp sẵn với Python
• yêu cầu. Yêu cầu cho phép bạn gửi HTTP/1. 1 yêu cầu cực kỳ dễ dàng. Mô-đun này cũng không tích hợp sẵn với Python
• hệ điều hành. Mô-đun hệ điều hành trong python cung cấp các chức năng để tương tác với hệ điều hành. Hệ điều hành, đi kèm với các mô-đun tiện ích tiêu chuẩn của Python. Mô-đun này cung cấp một cách di động để sử dụng chức năng phụ thuộc vào hệ điều hành

Cách tiếp cận

• Nhập mô-đun
• Nhận mã HTML
• Nhận danh sách các thẻ img từ Mã HTML bằng phương thức findAll trong Beautiful Soup

images = soup.findAll('img')

Tạo thư mục riêng để tải xuống hình ảnh bằng phương pháp mkdir trong os

os.mkdir(folder_name)

• Lặp lại tất cả các hình ảnh và lấy URL nguồn của hình ảnh đó
• Sau khi nhận được URL nguồn, bước cuối cùng là tải xuống hình ảnh
• Tìm nạp nội dung của hình ảnh

r = requests.get(Source URL).content

• Tải xuống hình ảnh bằng Xử lý tệp

# Enter File Name with Extension like jpg, png etc..
with open("File Name","wb+") as f:
      f.write(r)

Chương trình

Python3

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      f.write(r)

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đầu ra

https. //phương tiện truyền thông. chuyên viên máy tính. org/wp-content/uploads/20201211190257/FreeOnlineScreenRecorderProject1. mp4