pip install -r requirements.txt

python main.py
# Enter URL and the name or directory where to save images.

## Output example
# (1) Enter the URL: https://foo.bar
# (2) Enter the name of directory where to save images: img
# # of images: 10
# 1 / 10 downloaded.
# 2 / 10 downloaded.
# ...
# 10 / 10 downloaded.
# All images have been downloaded.