Python uses Requests to handle file upload and download

Environmental construction and preparation work: 1. Install Python: On the Python official website（ https://www.python.org/ ）Download and install the latest version of Python. 2. Install the Requests library: Run the 'pip install requests' command from the command line to install the Requests library. Sample code implementation: The following is a complete example of using the Requests library to upload and download files: python import requests #File upload def upload_file(file_path, url): with open(file_path, 'rb') as file: files = {'file': file} response = requests.post(url, files=files) if response.status_code == 200: Print ('File uploaded successfully ') else: Print ('File upload failed ') #File Download def download_file(url, save_path): response = requests.get(url) if response.status_code == 200: with open(save_path, 'wb') as file: file.write(response.content) Print ('File downloaded successfully ') else: Print ('File download failed ') #Upload and download test files def test_upload_download(): #Test file upload upload_url = 'http://localhost:8000/upload' file_path = 'path/to/upload/file.txt' upload_file(file_path, upload_url) #Test file download download_url = 'http://localhost:8000/download' save_path = 'path/to/save/file.txt' download_file(download_url, save_path) test_upload_download() Summary: The Requests library enables easy file upload and download operations. File upload can be achieved through the 'requests. post' method, and file download can be achieved through the 'requests. get' method. It should be noted that when uploading files, we need to use the 'files' parameter and pass the file object to it. When downloading a file, we can use 'response. content' to obtain the file content.