Cannot render 'human' mode: no TradingChart plt is called

[forhonourlx]

Hi,

I am trying optimize.py: trader.train(test_trained_model=True, render_test_env=True, render_report=True, save_report=True) But no TradingChart or plt is seen. Does anybody know the reason? Thanks for your help.

[answerMA]

if you run codes in the colab, it won;t show anything,

but if you run it based on your own local env, the chart will pop up