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The function readFolderContent ( ) used in the compute _ heart _ disease recipe includes these lines: with folder.get _ download _ stream ( names
The function readFolderContent used in the computeheartdisease recipe includes these lines:
with folder.getdownloadstreamnamesdata as stream:
textdata stream.read
Why is the code above preferable for reading data from a managed folder instead of a snippet like:
filepath folder.getpath 'heartdisease.names'
filehandle openfilepath
textdata filehandle.readlines
The second snippet is actually better.
Its fewer lines.
The second snippet will fail on a nonlocal filesystem like S or HDFS
Its streaming so guaranteed to be faster.
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