Taichi: euler.py problem

[CathKan]

Hello, I may found some issue in euler.py file. After I copy pasted the code from webpage to my PyCharm, there are some places that cannot run properly, I am not very skillful to fix them my self, the error displayed is shown in the attached screenshot~ I do not quite understand how should the lines indented. Hope some one can help, I'd like to take a look at what visual effect this code simulates~ Thank you in advance!!

[archibate]

Hi, copy and paste from website will result in an extra newline between two lines so indents will be broken.
Please try copy from the raw content: https://raw.githubusercontent.com/taichi-dev/taichi/master/examples/euler.py
Or run this command in your shell: python3 -m taichi example -s euler.