How to itarate over a python dictionary

Question

I am trying to get each of the values for key symbols specifically(symbol and pricePrecision) of this Python dictionary.

response = {'timezone': 'UTC', 'serverTime': 1621287738195, 'futuresType': 'U_MARGINED', 'rateLimits': [{'rateLimitType': 'REQUEST_WEIGHT', 'interval': 'MINUTE', 'intervalNum': 1, 'limit': 2400}, {'rateLimitType': 'ORDERS', 'interval': 'MINUTE', 'intervalNum': 1, 'limit': 1200}, {'rateLimitType': 'ORDERS', 'interval': 'SECOND', 'intervalNum': 10, 'limit': 300}], 'exchangeFilters': [], 'assets': [{'asset': 'USDT', 'marginAvailable': True, 'autoAssetExchange': '-10000'}, {'asset': 'BNB', 'marginAvailable': False, 'autoAssetExchange': '0'}, {'asset': 'BUSD', 'marginAvailable': True, 'autoAssetExchange': '-10000'}, {'asset': 'BTC', 'marginAvailable': True, 'autoAssetExchange': '-0.00100000'}], 'symbols': [{'symbol': 'BTCUSDT', 'pair': 'BTCUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'BTC', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '556.72', 'maxPrice': '1000000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}, {'symbol': 'ETHUSDT', 'pair': 'ETHUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'ETH', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '39.86', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}, {'symbol': 'BCHUSDT', 'pair': 'BCHUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'BCH', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '13.93', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}, {'symbol': 'XRPUSDT', 'pair': 'XRPUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'XRP', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 4, 'quantityPrecision': 1, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '0.0143', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.0001'}, {'stepSize': '0.1', 'filterType': 'LOT_SIZE', 'maxQty': '1000000', 'minQty': '0.1'}, {'stepSize': '0.1', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000000', 'minQty': '0.1'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}]}

So far I have only been able to obtain the value of one symbol at a time with all the values through this code:

from operator import itemgetter
def subindex(d, ks):

    return dict(zip(ks, itemgetter(*ks)(d)))

response = response 

subindex(response, ['symbols'])
print(response['symbols'][3])

Is there a way to get each of the symbols from the symbols key without having to do it individually?

Regards,

Orlando Gautier

The answer did not answer my question, the suggested solutions work with a dictionary that is not nested, in my case I have that dictionary nested with a symbols key that has symbol as one of its values, and this symbol that I need to access. Regards, Oelando Gautier — user1847917, May 17 '21 at 22:52
With this code: from operator import itemgetter def subindex(d, ks): return dict(zip(ks, itemgetter(*ks)(d))) response = response subindex(response, ['symbols']) print(response['symbols'][1]) I can get: {'symbol': 'ETHUSDT', 'pair': 'ETHUSDT','maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'ETH', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2,.....and so on.....'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}]} There are 116 symbol, I just need symbol and pricePrecision. It is possible to get each of the symbols separately? — user1847917, May 17 '21 at 23:18

JonSG · Answer 1 · 2021-05-17T23:20:47.483

I fairly certain that ultimately Iterating over dictionaries using 'for' loops is your answer.

If it is not, then you need to clarify exactly what output you expect.

At the moment given:

response = {
    'timezone': 'UTC',
    'serverTime': 1621287738195,
    'futuresType': 'U_MARGINED',
    'rateLimits': [
        {'rateLimitType': 'REQUEST_WEIGHT', 'interval': 'MINUTE', 'intervalNum': 1, 'limit': 2400},
        {'rateLimitType': 'ORDERS', 'interval': 'MINUTE', 'intervalNum': 1, 'limit': 1200},
        {'rateLimitType': 'ORDERS', 'interval': 'SECOND', 'intervalNum': 10, 'limit': 300}
    ],
    'exchangeFilters': [],
    'assets': [
        {'asset': 'USDT', 'marginAvailable': True, 'autoAssetExchange': '-10000'},
        {'asset': 'BNB', 'marginAvailable': False, 'autoAssetExchange': '0'},
        {'asset': 'BUSD', 'marginAvailable': True, 'autoAssetExchange': '-10000'},
        {'asset': 'BTC', 'marginAvailable': True, 'autoAssetExchange': '-0.00100000'}
    ],
    'symbols': [
        {'symbol': 'BTCUSDT', 'pair': 'BTCUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'BTC', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '556.72', 'maxPrice': '1000000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']},
        {'symbol': 'ETHUSDT', 'pair': 'ETHUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'ETH', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '39.86', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']},
        {'symbol': 'BCHUSDT', 'pair': 'BCHUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'BCH', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 2, 'quantityPrecision': 3, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '13.93', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.01'}, {'stepSize': '0.001', 'filterType': 'LOT_SIZE', 'maxQty': '10000', 'minQty': '0.001'}, {'stepSize': '0.001', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000', 'minQty': '0.001'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']},
        {'symbol': 'XRPUSDT', 'pair': 'XRPUSDT', 'contractType': 'PERPETUAL', 'deliveryDate': 4133404800000, 'onboardDate': 1569398400000, 'status': 'TRADING', 'maintMarginPercent': '2.5000', 'requiredMarginPercent': '5.0000', 'baseAsset': 'XRP', 'quoteAsset': 'USDT', 'marginAsset': 'USDT', 'pricePrecision': 4, 'quantityPrecision': 1, 'baseAssetPrecision': 8, 'quotePrecision': 8, 'underlyingType': 'COIN', 'underlyingSubType': [], 'settlePlan': 0, 'triggerProtect': '0.0500', 'filters': [{'minPrice': '0.0143', 'maxPrice': '100000', 'filterType': 'PRICE_FILTER', 'tickSize': '0.0001'}, {'stepSize': '0.1', 'filterType': 'LOT_SIZE', 'maxQty': '1000000', 'minQty': '0.1'}, {'stepSize': '0.1', 'filterType': 'MARKET_LOT_SIZE', 'maxQty': '1000000', 'minQty': '0.1'}, {'limit': 200, 'filterType': 'MAX_NUM_ORDERS'}, {'limit': 10, 'filterType': 'MAX_NUM_ALGO_ORDERS'}, {'notional': '5', 'filterType': 'MIN_NOTIONAL'}, {'multiplierDown': '0.8500', 'multiplierUp': '1.1500', 'multiplierDecimal': '4', 'filterType': 'PERCENT_PRICE'}], 'orderTypes': ['LIMIT', 'MARKET', 'STOP', 'STOP_MARKET', 'TAKE_PROFIT', 'TAKE_PROFIT_MARKET', 'TRAILING_STOP_MARKET'], 'timeInForce': ['GTC', 'IOC', 'FOK', 'GTX']}
    ]
}

You can get each symbol and price via:

for symbol in response["symbols"]:
    print(symbol["symbol"], symbol["pricePrecision"])

alternatively if you want to store that in a list it might be:

all_symbols = [(symbol["symbol"], symbol["pricePrecision"]) for symbol in response["symbols"]]
for symbol in all_symbols:
    print(symbol[0], symbol[1])

If either of these helps, then let me know in a comment so we can close this as a dupe.

If what you are looking for is some sort of method to give you the price for a specific symbol, then this might help:

def getPrice(response, symbol_id):
    matches = [s for s in response["symbols"] if s["symbol"] == symbol_id]
    if not matches:
        return None
    return matches[0].get("pricePrecision")

print(getPrice(response, "ETHUSDT"))

Thank you very much for your help, everything you have indicated is specifically what I needed. — user1847917, May 17 '21 at 23:26
If you now feel that this is potentially a dupe of https://stackoverflow.com/questions/3294889/iterating-over-dictionaries-using-for-loops then you can likely close this via the "close" link above then indicating it is a dupe. Alternatively you can delete the question. — JonSG, May 17 '21 at 23:30

How to itarate over a python dictionary

1 Answers1