Update tutorial nav

_code-samples/quickstart/py/mod9.py

@@ -3,9 +3,17 @@ from xrpl.clients import JsonRpcClient
 from xrpl.wallet import Wallet
 from datetime import datetime
 from xrpl.models.transactions import EscrowCreate, EscrowFinish
+from os import urandom
+from cryptoconditions import PreimageSha256
 
 testnet_url = "https://s.altnet.rippletest.net:51234"
 
+def generate_condition():
+    randy = urandom(32)
+    fulfillment = PreimageSha256(preimage=randy)
+    return (fulfillment.condition_binary.hex().upper(),
+            fulfillment.serialize_binary().hex().upper())
+
 def add_seconds(numOfSeconds):
     new_date = datetime.now()
     if new_date != '':
@@ -18,6 +26,7 @@ def create_conditional_escrow(seed, amount, destination, cancel, condition):
     wallet=Wallet.from_seed(seed)
     client=JsonRpcClient(testnet_url)
     cancel_date = add_seconds(cancel)
+    finish_date = cancel_date - 200
 
     escrow_tx=xrpl.models.transactions.EscrowCreate(
         account=wallet.address,