How to Fix Image Download Issues Using Python's Requests Module?

Troubleshooting Image Download with Requests Module

Question:

While attempting to download an image using the Requests module in Python, the code below fails:

r = requests.get(settings.STATICMAP_URL.format(**data))
if r.status_code == 200:
    img = r.raw.read()
    with open(path, 'w') as f:
        f.write(img)

Can you help identify the issue and suggest a solution?

Answer:

To download an image using the Requests module, you can utilize either the response.raw file object or iterate over the response. Here are the approaches:

Using response.raw:

import requests
import shutil

r = requests.get(settings.STATICMAP_URL.format(**data), stream=True)
if r.status_code == 200:
    with open(path, 'wb') as f:
        r.raw.decode_content = True
        shutil.copyfileobj(r.raw, f)

This approach forces decompression of compressed responses and uses shutil.copyfileobj() to stream the data to a file object.

Iterating Over Response:

r = requests.get(settings.STATICMAP_URL.format(**data), stream=True)
if r.status_code == 200:
    with open(path, 'wb') as f:
        for chunk in r:
            f.write(chunk)

This approach ensures data is decompressed and reads the data in 128-byte chunks. You can customize the chunk size using the Response.iter_content() method.

Additional Notes:

• Open the destination file in binary mode ('wb') to prevent newline translation.
• Set stream=True to avoid loading the entire image into memory.

The above is the detailed content of How to Fix Image Download Issues Using Python's Requests Module?. For more information, please follow other related articles on the PHP Chinese website!