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Redo io import structure to make z.show() work for both matplotlib plots and pandas dataframes in python2/3

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This commit is contained in:
Alex Goodman 2016-08-18 21:09:13 -07:00
parent 6a8f3abe62
commit 772313f2da
1 changed files with 9 additions and 10 deletions
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19
python/src/main/resources/bootstrap.py
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@ -20,7 +20,11 @@
import sys
import signal
import base64
import io
from io import BytesIO
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
def intHandler(signum, frame): # Set the signal handler
print ("Paragraph interrupted")
@ -138,14 +142,14 @@ class PyZeppelinContext(object):
"""Pretty prints DF using Table Display System
"""
limit = len(df) > self.max_result
header_buf = io.StringIO("")
header_buf = StringIO("")
header_buf.write(str(df.columns[0]))
for col in df.columns[1:]:
header_buf.write("\t")
header_buf.write(str(col))
header_buf.write("\n")
body_buf = io.StringIO("")
body_buf = StringIO("")
rows = df.head(self.max_result).values if limit else df.values
for row in rows:
body_buf.write(str(row[0]))
@ -166,7 +170,7 @@ class PyZeppelinContext(object):
"""Matplotlib show function
"""
if fmt == 'png':
img = io.BytesIO()
img = BytesIO()
p.savefig(img, format=fmt)
html = "%html <img src={img} width={width}, height={height}>"
img_str = b"data:image/png;base64,"
@ -176,12 +180,7 @@ class PyZeppelinContext(object):
img_str = img_str.decode('ascii')
elif fmt == 'svg':
# Another python3 compatability check
if self.py3:
img = io.StringIO()
else:
img = io.BytesIO()
img = StringIO()
p.savefig(img, format=fmt)
html = "%html <div style='width:{width};height:{height}'>{img}<div>"
img_str = img.getvalue()