This is for download captcha images from link and xpath
-f + int: Download count(default=1)
-l + url: captcha's url
-x + xpath: captcha's xpath

This is for parsing captcha images.
-p no argument.

This is for train deep learning algorithm.
-t + int: train epochs

This is for attack an url.
-a + int: attack count
-x + xpath: captcha's xpath
-l + url: captcha's url
-c + url: captcha image's url
-w + xpath: textbox's xpath
-b + xpath: button's xpath

python3 main.py -f 10 -l "https://w3challs.com/challs/Prog/captchas/gen_captcha.php?num=0&" -x "/html/body/img"

It will download 10 captchas from link.

python3 main.py -p

Parse letters in parsedLetters file

python3 main.py -t 10

Train and create model_labels.dat,captcha_model.hdf5 files.

python3 main.py --url "https://w3challs.com/challs/Prog/captchas/reversecaptcha.php" -a 10 -x "/html/body/img" -b "/html/body/center/form/table/tbody/tr/td/font/center[51]/input" -w "/html/body/center/form/table/tbody/tr/td/font/center[1]/input" -c "https://w3challs.com/challs/Prog/captchas/gen_captcha.php?num=0&"

This long command for prediction captcha from url and captcha's xpath then it will submit textbox and press button. After it will repeat this process for 10 times.

References:link