擅长:python、mysql、java
<pre><code>accounts_next_due_date = None
try:
accounts_next_due_date = json_data['primaryTopic']['Accounts']['NextDueDate']
except (KeyError, TypeError):
pass # or log the error
finally:
if not accounts_next_due_date:
accounts_next_due_date = "e"
</code></pre>