will it solve captcha such as this ?

[EssaAlshammri]

[davidlkl]

As I originally did it for recognition of English word only, the fitted model cannot recognize digits. However, you can reuse the whole model architecture for this task by modifying the files accordingly. For example, currently I use read_dictionary (in /model/gen_captcha.py) to generate the word list, you can use your own method which returns a 4-digit number list instead. Moreover, ImageCaptcha is used as the captcha-generating engine, you should use your own one for producing the training images. Hope it helps!