Save image as file from URL (PlL, Python)

[RileyTheFox]

Hello. I am wanting to get an image from a URL using PIL and then convert the image object that I have to a file that I can then use to set as the desktop background on Windows. I have figured out how to set the desktop background using a fixed absolute path (E.g C:\Users\<My User>\Desktop\<Image file>) but I need to figure out how to either set it with an Image object from PIL or how to save the Image object I get from PIL to a file on disk.

 

Here is my current code for getting an image:

Ignore the whole time sleeping stuff and opening the browser, that is irrelevant.

 

I currently use the Requests module to do a HTTP request to the website. I then open an Image using the content of that URL and store it in img. But how do I put the contents of that Image object into something I can use to set the desktop background?

 

Help is appreciated, thanks.

[BobVonBob]

Image.save(fp, format=None, **params)

https://pillow.readthedocs.io/en/4.2.x/reference/Image.html

[RileyTheFox]

4 minutes ago, BobVonBob said:

Image.save(fp, format=None, **params)

https://pillow.readthedocs.io/en/4.2.x/reference/Image.html

Image.save doesn't seem to pop up when I type that in. I'm using Visual Studio and maybe it's being buggy?

[BobVonBob]

7 minutes ago, EvilCat70 said:

Image.save doesn't seem to pop up when I type that in. I'm using Visual Studio and maybe it's being buggy?

Image is the image object, so img.save in your case.

 

[RileyTheFox]

20 minutes ago, BobVonBob said:

Image is the image object, so img.save in your case.

 

this happened. I don't know why.

[BobVonBob]

1 minute ago, EvilCat70 said:

-snip-

Look at the error message. "ValueError: unknown file extension" and above that "format = EXTENSION[ext]". In other words, specify the correct format, None is a default.

[RileyTheFox]

1 minute ago, BobVonBob said:

Look at the error message. "ValueError: unknown file extension" and above that "format = EXTENSION[ext]". In other words, specify the correct format, None is a default.

Yes I fixed that by putting the file name as "image.jpg". However, now when I try to set the desktop background using that file, it is setting it to solid black. I've checked the image file and the contents are there as they should be, it's not just a black image. I've made sure the path is correct by doing this:

As you can see, the path that gets printed is exactly where the image is being saved.

 

What's going wrong?

[BobVonBob]

Not even the slightest clue. Maybe a race condition? The save hasn't actually written the file when you try to change it? Try a short sleep between the save and loading the wallpaper. If that's not it I'm stumped. Here's 3 stackexchange topics about a seemingly similar issue.

 

https://stackoverflow.com/questions/21715895/creating-a-background-changer-in-python-with-ctypes-not-working

https://stackoverflow.com/questions/27726236/why-wont-this-ctypes-code-work-with-python-3-3-but-will-work-with-python-2-7/27726289#27726289

https://stackoverflow.com/questions/21715895/creating-a-background-changer-in-python-with-ctypes-not-working/30018577#30018577

[RileyTheFox]

45 minutes ago, BobVonBob said:

Not even the slightest clue. Maybe a race condition? The save hasn't actually written the file when you try to change it? Try a short sleep between the save and loading the wallpaper. If that's not it I'm stumped. Here's 3 stackexchange topics about a seemingly similar issue.

 

https://stackoverflow.com/questions/21715895/creating-a-background-changer-in-python-with-ctypes-not-working

https://stackoverflow.com/questions/27726236/why-wont-this-ctypes-code-work-with-python-3-3-but-will-work-with-python-2-7/27726289#27726289

https://stackoverflow.com/questions/21715895/creating-a-background-changer-in-python-with-ctypes-not-working/30018577#30018577

I was able to get everything working! The issue was that the paths weren't exactly the same, but now the path is always correct!