Merge pull request #211 from eholic/offline_support

Fix offline dependency with chart_studio

cufflinks/__init__.py

@@ -20,7 +20,6 @@
 from .helper import _printer as help
 from .plotlytools import *
 from plotly.graph_objs import *
-from chart_studio.plotly import plot
 from .colors import cnames, get_colorscale
 from .utils import pp
 from .tools import subplots,scatter_matrix,figures,getLayout,getThemes,getTheme

cufflinks/plotlytools.py

@@ -1,5 +1,4 @@
 import pandas as pd
-import chart_studio.plotly as py
 import time
 import copy
 # from plotly.graph_objs import *
@@ -1427,6 +1426,14 @@ def iplot(figure,validate=True,sharing=None,filename='',
 		auto_open=False
 
 	## Exports
+	if not offline.is_offline() or online:
+		try:
+			import chart_studio.plotly as py
+		except:
+			raise Exception("chart_studio is required outside of offline mode: " \
+					"please run " \
+					"pip install chart_studio" )
+
 	if asImage:
 		if offline.is_offline() and not online:
 			return offline.py_offline.iplot(figure,validate=validate, filename=filename, show_link=show_link,link_text=link_text,

requirements.txt

@@ -1,7 +1,6 @@
 numpy>=1.9.2
 pandas>=0.19.2
 plotly>=4.1.1
-chart-studio>=1.0.0
 six>=1.9.0
 colorlover>=0.2.1
 setuptools>=34.4.1