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Append to csv file python

Overwrites the existing file if the file exists. W Opens a file for both writing and reading. Creates a new append file for writing. If the file does not exist, overwrites the file if the file exists. Avsc to hdfs because we will use a schema available at an hdfs location in one of the Hive examples. I want to find if there is any duplicate entries for the combination of these two column values. Avro examples/input file We will also upload the Avro schema twitter. I have a datatable dt which has name and subject as 2 of its columns. 1 2 3 # Upload python the Avro schema hadoop fs -mkdir examples/schema hadoop fs -copyFromLocal src/main/resources/avro/twitter.

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