initial save of my chatGPT coding

btc_tracker/fetch_data.py

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+#!/usr/bin/python3
+import json, time
+
+# Load the JSON file
+with open('sources.json', 'r') as f:
+    data = json.load(f)
+
+# Iterate over the exchanges
+for exchange in data['exchanges']:
+    # Print the name and URL of the exchange
+    if exchange['name'] == "Kraken":
+        current_time = int(time.time()) - 300
+        exchange['url'] += f"&since={current_time}"
+        print(exchange['name'], exchange['url'])
+    else:
+        print(exchange['name'], exchange['url'])

btc_tracker/sources.json

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+{
+  "exchanges": [
+    {
+      "name": "Bitstamp",
+      "url": "https://www.bitstamp.net/api/v2/ohlc/btcusd/?step=300&limit=1",
+      "freq": "5"
+    },
+    {
+      "name": "Kraken",
+      "url": "https://api.kraken.com/0/public/OHLC?pair=XBTUSD&interval=240",
+      "freq": "5"
+    },
+    {
+      "name": "Bitfinex",
+      "url": "https://api-pub.bitfinex.com/v2/candles/trade:5m:tBTCUSD/last",
+      "freq": "5"
+    },
+    {
+      "name": "Gemini",
+      "url": "https://api.gemini.com/v2/candles/btcusd/5m",
+      "freg": "5"
+    }
+  ]
+}