擅长:python、mysql、java
<p>如果您显式地将哈希转换为<code>ByteString</code>,它似乎可以工作:</p>
<pre><code>from google.appengine.api.datastore_types import ByteString
hasher = hashlib.sha256()
hasher.update('http://www.google.com/')
urlHash = hasher.digest()
bs = ByteString(urlHash)
m = Map(urlHash=bs).put()
query = db.Query(Map)
query = query.filter('urlHash =', bs)
results = query.fetch(1)
</code></pre>