I am using MetaTrader 5 for python and regardless of the specified range, symbol and timeframe, copy_rates_range() almost always returns 0 or 1 bars. In the docs they say it’s normal for the first call and that the requested data will be ready for subsequent calls but it just never is.

I’d like to know what coding language is used on MetaTrader 5 Desktop, I’m referring to the actual platform you download, not the EA’s or Indicators, and would it be easy to create your own trading platform for desktop like MT5