Add Forex and Crypto symbol picker

Market selector (Crypto/Forex) with 25 crypto coins and 20 forex pairs; custom Yahoo tickers still allowed.

README.md

@@ -14,4 +14,11 @@ Live MAYTHOS market analysis using Yahoo Finance through the free `yfinance`
 library. The Space warms the signal engine from recent Yahoo candles and then
 refreshes the latest Yahoo candle every 60 seconds.
 
-Supported examples: `BTC-USD`, `ETH-USD`, `AAPL`, `EURUSD=X`.
+The symbol picker has two markets:
+
+- **Crypto**: 25 coins, for example `BTC-USD`, `ETH-USD`, `SOL-USD`, `XRP-USD`.
+- **Forex**: 20 pairs (majors, crosses, exotics), for example `EURUSD=X`,
+  `GBPUSD=X`, `USDJPY=X`, `USDINR=X`.
+
+Any other Yahoo Finance ticker (such as `AAPL`) can still be typed into the
+Symbol box. The full list lives in `symbols.py`.

app.py

@@ -15,6 +15,7 @@ from typing import Any, List, Optional, Tuple
 import gradio as gr
 
 from maythos_engine import MAYTHOS, YahooFinanceFeed
+from symbols import DEFAULT_MARKET, DEFAULT_SYMBOL, MARKETS, symbols_for
 
 
 _LOCK = threading.RLock()
@@ -111,6 +112,12 @@ def refresh(symbol: str, interval: str, period: str,
         )
 
 
+def change_market(market: str) -> Any:
+    """Swap the symbol list when the market changes and select its first symbol."""
+    choices = symbols_for(market)
+    return gr.update(choices=choices, value=choices[0][1])
+
+
 with gr.Blocks(title="MAYTHOSLIVE — Yahoo Finance") as demo:
     gr.Markdown(
         "# MAYTHOSLIVE\n"
@@ -119,7 +126,19 @@ with gr.Blocks(title="MAYTHOSLIVE — Yahoo Finance") as demo:
     )
 
     with gr.Row():
-        symbol = gr.Textbox(value="BTC-USD", label="Yahoo Finance symbol")
+        market = gr.Radio(
+            choices=list(MARKETS.keys()),
+            value=DEFAULT_MARKET,
+            label="Market",
+        )
+        symbol = gr.Dropdown(
+            choices=symbols_for(DEFAULT_MARKET),
+            value=DEFAULT_SYMBOL,
+            label="Symbol",
+            info="Pick from the list or type any Yahoo Finance ticker",
+            allow_custom_value=True,
+            filterable=True,
+        )
         interval = gr.Dropdown(
             choices=["1m", "2m", "5m", "15m", "30m", "1h", "1d"],
             value="1m",
@@ -152,6 +171,11 @@ with gr.Blocks(title="MAYTHOSLIVE — Yahoo Finance") as demo:
     refresh_button.click(refresh, inputs=inputs, outputs=outputs)
     demo.load(refresh, inputs=inputs, outputs=outputs)
 
+    # Changing the market selects that market's first symbol; any symbol
+    # change (from the list, a typed ticker, or a market switch) refreshes.
+    market.change(change_market, inputs=market, outputs=symbol)
+    symbol.change(refresh, inputs=inputs, outputs=outputs)
+
     timer = gr.Timer(value=60)
     timer.tick(refresh, inputs=inputs, outputs=outputs)
 

symbols.py

@@ -0,0 +1,78 @@
+"""Yahoo Finance symbol catalogue for the MAYTHOSLIVE symbol picker.
+
+Each entry is ``(display label, Yahoo Finance ticker)``. Every ticker here was
+checked against Yahoo Finance 1m chart data before being added.
+"""
+
+from __future__ import annotations
+
+from typing import Dict, List, Tuple
+
+SymbolChoice = Tuple[str, str]
+
+FOREX_SYMBOLS: List[SymbolChoice] = [
+    # Majors
+    ("EUR/USD (EURUSD=X)", "EURUSD=X"),
+    ("GBP/USD (GBPUSD=X)", "GBPUSD=X"),
+    ("USD/JPY (USDJPY=X)", "USDJPY=X"),
+    ("USD/CHF (USDCHF=X)", "USDCHF=X"),
+    ("AUD/USD (AUDUSD=X)", "AUDUSD=X"),
+    ("USD/CAD (USDCAD=X)", "USDCAD=X"),
+    ("NZD/USD (NZDUSD=X)", "NZDUSD=X"),
+    # Crosses
+    ("EUR/GBP (EURGBP=X)", "EURGBP=X"),
+    ("EUR/JPY (EURJPY=X)", "EURJPY=X"),
+    ("GBP/JPY (GBPJPY=X)", "GBPJPY=X"),
+    ("EUR/CHF (EURCHF=X)", "EURCHF=X"),
+    ("EUR/AUD (EURAUD=X)", "EURAUD=X"),
+    ("AUD/JPY (AUDJPY=X)", "AUDJPY=X"),
+    ("CAD/JPY (CADJPY=X)", "CADJPY=X"),
+    ("GBP/CHF (GBPCHF=X)", "GBPCHF=X"),
+    # Exotics
+    ("USD/INR (USDINR=X)", "USDINR=X"),
+    ("USD/SGD (USDSGD=X)", "USDSGD=X"),
+    ("USD/ZAR (USDZAR=X)", "USDZAR=X"),
+    ("USD/MXN (USDMXN=X)", "USDMXN=X"),
+    ("USD/TRY (USDTRY=X)", "USDTRY=X"),
+]
+
+CRYPTO_SYMBOLS: List[SymbolChoice] = [
+    ("Bitcoin (BTC-USD)", "BTC-USD"),
+    ("Ethereum (ETH-USD)", "ETH-USD"),
+    ("BNB (BNB-USD)", "BNB-USD"),
+    ("Solana (SOL-USD)", "SOL-USD"),
+    ("XRP (XRP-USD)", "XRP-USD"),
+    ("Cardano (ADA-USD)", "ADA-USD"),
+    ("Dogecoin (DOGE-USD)", "DOGE-USD"),
+    ("TRON (TRX-USD)", "TRX-USD"),
+    ("Avalanche (AVAX-USD)", "AVAX-USD"),
+    ("Polkadot (DOT-USD)", "DOT-USD"),
+    ("Chainlink (LINK-USD)", "LINK-USD"),
+    ("Litecoin (LTC-USD)", "LTC-USD"),
+    ("Bitcoin Cash (BCH-USD)", "BCH-USD"),
+    ("Stellar (XLM-USD)", "XLM-USD"),
+    ("Cosmos (ATOM-USD)", "ATOM-USD"),
+    ("Ethereum Classic (ETC-USD)", "ETC-USD"),
+    ("Shiba Inu (SHIB-USD)", "SHIB-USD"),
+    ("Uniswap (UNI7083-USD)", "UNI7083-USD"),
+    ("Toncoin (TON11419-USD)", "TON11419-USD"),
+    ("Polygon POL (POL28321-USD)", "POL28321-USD"),
+    ("NEAR Protocol (NEAR-USD)", "NEAR-USD"),
+    ("Aptos (APT21794-USD)", "APT21794-USD"),
+    ("Arbitrum (ARB11841-USD)", "ARB11841-USD"),
+    ("Sui (SUI20947-USD)", "SUI20947-USD"),
+    ("Pepe (PEPE24478-USD)", "PEPE24478-USD"),
+]
+
+MARKETS: Dict[str, List[SymbolChoice]] = {
+    "Crypto": CRYPTO_SYMBOLS,
+    "Forex": FOREX_SYMBOLS,
+}
+
+DEFAULT_MARKET = "Crypto"
+DEFAULT_SYMBOL = "BTC-USD"
+
+
+def symbols_for(market: str) -> List[SymbolChoice]:
+    """Return the symbol choices for a market, falling back to the default."""
+    return MARKETS.get(market, MARKETS[DEFAULT_MARKET])