這是問答& A,這意味着我分享我的解決方案/回答我面臨一個問題:從Python 3和Avro 1.7.6開始,步驟是什麼? (Q&A)
的問題是,從Apache網站getting started guide並非完全向上-to-日期經過一番小小的調整,我設法讓樣本起作用。
- 首先wget的從here
- 轉到郎下的子文件夾PY 3的最新版本,並通過你的Python 3構建項目(閱讀更多here)
在同一文件夾中創建user.avsc python代碼將被定位。
的模式:
{ "namespace": "example.avro", "type": "record", "name": "User", "fields": [ {"name": "name", "type": "string"}, {"name": "favorite_number", "type": ["int", "null"]}, {"name": "favorite_color", "type": ["string", "null"]} ] }
創建從下面提供的代碼(記住,我不得不做出here的代碼小的改動,以得到這個工作)的的.py。
修改後的代碼如下。
import avro.schema from avro.datafile import DataFileReader, DataFileWriter from avro.io import DatumReader, DatumWriter schema = avro.schema.Parse(open("user.avsc").read()) writer = DataFileWriter(open("users.avro", "wb"), DatumWriter(), schema) writer.append({"name": "Alyssa", "favorite_number": 256}) writer.append({"name": "Ben", "favorite_number": 7, "favorite_color": "red"}) writer.close() reader = DataFileReader(open("users.avro", "rb"), DatumReader()) for user in reader: print(user) reader.close()
代碼示例有錯字。應該是進口avro.schema不進口進口avro.schma –