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What stops Quantopian from providing Python 3 IDE?

I am from China, generally I use English when coding, but when I wanted to demo Quantopian to a friend lately, I occasionally typed some Chinese in the code (logging, specifically), it says "Invalid Log" or something like. I remembered Python 2 has the file encoding problem while Python 3 doesn't.

I then started to wonder that it seems all of Quantopian's "whitelisted" packages have supported Python 3 (long ago), a progress of Python 3 IDE is still unseen. What is the major reason for that?

BTW, in Research, which used Jupyter, has no problem dealing with Chinese, even running Python 2.7 (wonder how they did it).

Clone Algorithm
Backtest from to with initial capital
Total Returns
Max Drawdown
Benchmark Returns
Returns 1 Month 3 Month 6 Month 12 Month
Alpha 1 Month 3 Month 6 Month 12 Month
Beta 1 Month 3 Month 6 Month 12 Month
Sharpe 1 Month 3 Month 6 Month 12 Month
Sortino 1 Month 3 Month 6 Month 12 Month
Volatility 1 Month 3 Month 6 Month 12 Month
Max Drawdown 1 Month 3 Month 6 Month 12 Month
# Backtest ID: 55baeb19570cb60c651f2f6a
There was a runtime error.
2 responses

We may do Python 3 at some point.

It sounds like the real problem is the errors, not the Python itself. I agree that it should be something we can fix. Can you post some sample code that triggers the error so we can look at it? Thanks.


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Update: attached problematic code.

Just curious, what is the main reason for Quantopian to stick to Python 2 today (or rather there is no motivation to move to Python 3)?