Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/15053
Oh, maybe my previous comments were not clear. I meant
https://github.com/apache/spark/blob/master/python/pyspark/sql/dataframe.py#L18
> Also, is the idea that we would define df globally, and then for the
docstring of each function we would not do:
For this one, I meant not defining dataframes that were already defined in
`_test` but just print them in the package level doc string. So.. the complete
structure would be as below:
```python
# Apache license
# ...
"""
>>> df.show()
+-----+---+
| name|age|
+-----+---+
|Alice| 2|
| Bob| 5|
+-----+---+
"""
import doctest
import sys
# Other tests..
def _test():
# Just leave the dataframe definition as they are
globs = globals()
globs['df'] = df = spark.createDataFrame([('Alice', 2), ('Bob', 5)],
['name', 'age'])
doctest.testmod(sys.modules[__name__], globs=globs)
if __name__ == "__main__":
_test()
```
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