tiers[symbol] should be tiers['symbol']

Hi,

I’m using Freqtrade, and testing the future capabilities with it, what is using CCXT.

When we call this method I got an error, and when I looked through the code there is a problem. That tiers[symbol] should be [‘symbol’]. I believe the problem comes from here. Could you please check it?

`

if ((market is not None) and market['contract'] and (symbols_length == 0 or symbols.includes(symbol))):

File “/home/ftuser/.local/lib/python3.9/site-packages/ccxt/binance.py”, line 4588, in fetch_leverage_tiers

return self.parse_leverage_tiers(response, symbols, 'symbol')

File “/home/ftuser/.local/lib/python3.9/site-packages/ccxt/base/exchange.py”, line 2787, in parse_leverage_tiers

if ((market is not None) and market['contract'] and (symbols_length == 0 or symbols.includes(symbol))):

KeyError: ‘contract’ ` https://github.com/ccxt/ccxt/blob/1bd6ca5f76abe59dc52c8148f4f4bea3cdd080ae/python/ccxt/base/exchange.py#L2788

[kroitor]

@richardjozsa @xmatthias fixed in 1.74.36, thanks for your help! (the new build will arrive in ~20 minutes)

[richardjozsa]

Lovely, thanks! and sorry for the inconvinience, I’m not faimiliar yet with your system 😄