Preparing git repo for final project

problems/pset4/bitcoin/bitcoin.py

@@ -0,0 +1,24 @@
+import json
+import requests
+import sys
+
+
+def main():
+    try:
+        n = float(sys.argv[1])
+    except IndexError:
+        sys.exit("Missing command-line argument")
+    except (ValueError, TypeError):
+        sys.exit("Command-line argument is not a number")
+    try:
+        response = requests.get("https://api.coindesk.com/v1/bpi/currentprice.json")
+        data = response.json()
+        conversion_rate = float(data['bpi']['USD']['rate'].replace(',', ''))
+    except requests.RequestException:
+        pass
+    print(f"${n * conversion_rate:,.4f}")
+
+
+
+if __name__ == "__main__":
+    main()