sunjincheng121 commented on a change in pull request #8641:
[FLINK-12757][python] Improves the word_count example to use the descriptor API
URL: https://github.com/apache/flink/pull/8641#discussion_r291877199
##########
File path: flink-python/pyflink/table/examples/batch/word_count.py
##########
@@ -39,41 +34,40 @@ def word_count():
"License you may not use this file except in compliance " \
"with the License"
- with open(source_path, 'w') as f:
- for word in content.split(" "):
- f.write(",".join([word, "1"]))
- f.write("\n")
- f.flush()
- f.close()
-
t_config = TableConfig.Builder().as_batch_execution().build()
t_env = TableEnvironment.create(t_config)
- field_names = ["word", "cout"]
- field_types = [DataTypes.STRING(), DataTypes.BIGINT()]
-
- # register Orders table in table environment
- t_env.register_table_source(
- "Word",
- CsvTableSource(source_path, field_names, field_types))
-
# register Results table in table environment
tmp_dir = tempfile.gettempdir()
- tmp_csv = tmp_dir + '/streaming2.csv'
- if os.path.isfile(tmp_csv):
- os.remove(tmp_csv)
+ result_dir = tmp_dir + '/result'
+ if os.path.exists(result_dir):
+ try:
+ shutil.rmtree(result_dir)
Review comment:
we should check the file by follows code:
```
if os.path.isfile(result_dir):
os.remove(result_dir)
else:
shutil.rmtree(result_dir)
```
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