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Add comment explaining the need for decoding bytes to string

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This commit is contained in:
Paul Bustios 2016-08-23 12:28:54 -03:00
parent 1a78a37d0f
commit b3c74a8883
1 changed files with 3 additions and 1 deletions
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4
python/src/main/resources/bootstrap.py
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@ -173,7 +173,9 @@ class PyZeppelinContext(object):
p.savefig(img, format=fmt)
img_str = b"data:image/png;base64,"
img_str += base64.b64encode(img.getvalue().strip())
img_str = "<img src={img}>".format(img=img_str.decode("ascii"))
# Decoding img_str is necessary for Python 3 compability
img_str = img_str.decode("ascii")
img_str = "<img src={img}>".format(img=img_str)
elif fmt == "svg":
img = StringIO()
p.savefig(img, format=fmt)