fix(py3): Use six.text_type instead of unicode
diff --git a/erpnext/manufacturing/doctype/production_order/production_order.py b/erpnext/manufacturing/doctype/production_order/production_order.py
index 2f2c40e..976b24f 100644
--- a/erpnext/manufacturing/doctype/production_order/production_order.py
+++ b/erpnext/manufacturing/doctype/production_order/production_order.py
@@ -4,6 +4,7 @@
 from __future__ import unicode_literals
 import frappe
 import json
+from six import text_type
 from frappe import _
 from frappe.utils import flt, get_datetime, getdate, date_diff, cint, nowdate
 from frappe.model.document import Document
@@ -591,10 +592,10 @@
 
 @frappe.whitelist()
 def add_timesheet_detail(timesheet, args):
-	if isinstance(timesheet, unicode):
+	if isinstance(timesheet, text_type):
 		timesheet = frappe.get_doc('Timesheet', timesheet)
 
-	if isinstance(args, unicode):
+	if isinstance(args, text_type):
 		args = json.loads(args)
 
 	timesheet.append('time_logs', args)
diff --git a/erpnext/stock/doctype/batch/batch.py b/erpnext/stock/doctype/batch/batch.py
index ef0a317..71fd821 100644
--- a/erpnext/stock/doctype/batch/batch.py
+++ b/erpnext/stock/doctype/batch/batch.py
@@ -2,6 +2,7 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
+from six import text_type
 import frappe
 from frappe import _
 from frappe.model.document import Document
@@ -60,7 +61,7 @@
 	:param prefix: Naming series prefix gotten from Stock Settings
 	:return: The derived key. If no prefix is given, an empty string is returned
 	"""
-	if not unicode(prefix):
+	if not text_type(prefix):
 		return ''
 	else:
 		return prefix.upper() + '.#####'
@@ -86,7 +87,7 @@
 	def autoname(self):
 		"""Generate random ID for batch if not specified"""
 		if not self.batch_id:
-			create_new_batch, batch_number_series = frappe.db.get_value('Item', self.item, 
+			create_new_batch, batch_number_series = frappe.db.get_value('Item', self.item,
 				['create_new_batch', 'batch_number_series'])
 
 			if create_new_batch:
diff --git a/erpnext/templates/pages/search_help.py b/erpnext/templates/pages/search_help.py
index 4a4b0db..887d8f4 100644
--- a/erpnext/templates/pages/search_help.py
+++ b/erpnext/templates/pages/search_help.py
@@ -3,6 +3,7 @@
 from frappe import _
 from jinja2 import utils
 from html2text import html2text
+from six import text_type
 from frappe.utils import sanitize_html
 from frappe.utils.global_search import search
 
@@ -12,7 +13,7 @@
 		query = str(utils.escape(sanitize_html(frappe.form_dict.q)))
 		context.title = _('Help Results for')
 		context.query = query
-		
+
 		context.route = '/search_help'
 		d = frappe._dict()
 		d.results_sections = get_help_results_sections(query)
@@ -73,7 +74,7 @@
 	for topic in topics_data:
 		route = api.base_url + '/' + (api.post_route  + '/' if api.post_route else "")
 		for key in api.post_route_key_list.split(','):
-			route += unicode(topic[key])
+			route += text_type(topic[key])
 
 		results.append(frappe._dict({
 			'title': topic[api.post_title_key],