examples: take inputs from command line instead of variable

examples/fetch_reports_async.py

@@ -1,5 +1,6 @@
 import asyncio
 import logging
+import sys
 
 from _login import get_account_async
 
@@ -9,35 +10,33 @@ from findmy.reports import RemoteAnisetteProvider
 # URL to (public or local) anisette server
 ANISETTE_SERVER = "http://localhost:6969"
 
-# Private base64-encoded key to look up
-KEY_PRIV = ""
-
-# Optional, to verify that advertisement key derivation works for your key
-KEY_ADV = ""
-
 logging.basicConfig(level=logging.DEBUG)
 
 
-async def fetch_reports(lookup_key: KeyPair) -> None:
-    anisette = RemoteAnisetteProvider(ANISETTE_SERVER)
-
-    acc = await get_account_async(anisette)
+async def fetch_reports(priv_key: str) -> int:
+    key = KeyPair.from_b64(priv_key)
+    acc = await get_account_async(
+        RemoteAnisetteProvider(ANISETTE_SERVER),
+    )
 
     try:
         print(f"Logged in as: {acc.account_name} ({acc.first_name} {acc.last_name})")
 
         # It's that simple!
-        reports = await acc.fetch_last_reports(lookup_key)
+        reports = await acc.fetch_last_reports(key)
         for report in sorted(reports):
             print(report)
-
     finally:
         await acc.close()
 
+    return 0
+
 
 if __name__ == "__main__":
-    key = KeyPair.from_b64(KEY_PRIV)
-    if KEY_ADV:  # verify that your adv key is correct :D
-        assert key.adv_key_b64 == KEY_ADV
+    if len(sys.argv) < 2:
+        print(f"Usage: {sys.argv[0]} <private key>", file=sys.stderr)
+        print(file=sys.stderr)
+        print("The private key should be base64-encoded.", file=sys.stderr)
+        sys.exit(1)
 
-    asyncio.run(fetch_reports(key))
+    asyncio.run(fetch_reports(sys.argv[1]))