add python-modernize to development dependencies file.

requirements/edx/base.txt

@@ -115,8 +115,8 @@ edx-completion==0.1.7
 edx-django-oauth2-provider==1.2.5
 edx-django-release-util==0.3.1
 edx-django-sites-extensions==2.3.1
-edx-drf-extensions==1.4.0
-edx-enterprise==0.69.4
+edx-drf-extensions==1.5.1
+edx-enterprise==0.69.5
 edx-i18n-tools==0.4.5
 edx-milestones==0.1.13
 edx-oauth2-provider==1.2.2
@@ -209,6 +209,7 @@ redis==2.10.6
 reportlab==3.1.44
 requests-oauthlib==0.6.1
 requests==2.9.1
+rest-condition==1.0.3     # via edx-drf-extensions
 rfc6266-parser==0.0.5.post2
 rules==1.3
 s3transfer==0.1.13        # via boto3

requirements/edx/development.in

@@ -18,6 +18,7 @@ pyinotify                           # More efficient checking for runserver relo
 snakefood                           # Lists dependencies between Python modules, used in scripts/dependencies/*
 sphinx                              # Developer documentation builder
 vulture                             # Detects possible dead/unused code, used in scripts/find-dead-code.sh
+modernize                           # Used to make Python 2 code more modern with the intention of eventually porting it over to Python 3.
 
 # Performance timer used in modulestore/perf_tests/test_asset_import_export.py
 -e git+https://github.com/doctoryes/code_block_timer.git@f3d0629f086bcc649c3c77f4bc5b9c2c8172c3bf#egg=code_block_timer

requirements/edx/development.txt

@@ -135,8 +135,8 @@ edx-completion==0.1.7
 edx-django-oauth2-provider==1.2.5
 edx-django-release-util==0.3.1
 edx-django-sites-extensions==2.3.1
-edx-drf-extensions==1.4.0
-edx-enterprise==0.69.4
+edx-drf-extensions==1.5.1
+edx-enterprise==0.69.5
 edx-i18n-tools==0.4.5
 edx-lint==0.5.5
 edx-milestones==0.1.13
@@ -209,6 +209,7 @@ markey==0.8
 markupsafe==1.0
 mccabe==0.6.1
 mock==1.0.1
+modernize==0.6.1
 mongoengine==0.10.0
 more-itertools==4.2.0
 moto==0.3.1
@@ -289,13 +290,14 @@ redis==2.10.6
 reportlab==3.1.44
 requests-oauthlib==0.6.1
 requests==2.9.1
+rest-condition==1.0.3
 rfc6266-parser==0.0.5.post2
 rules==1.3
 s3transfer==0.1.13
 sailthru-client==2.2.3
 scipy==0.14.0
 scrapy==1.1.2
-selenium==3.12.0
+selenium==3.13.0
 semantic-version==2.6.0
 service-identity==17.0.0
 shapely==1.2.16

requirements/edx/testing.txt

@@ -130,8 +130,8 @@ edx-completion==0.1.7
 edx-django-oauth2-provider==1.2.5
 edx-django-release-util==0.3.1
 edx-django-sites-extensions==2.3.1
-edx-drf-extensions==1.4.0
-edx-enterprise==0.69.4
+edx-drf-extensions==1.5.1
+edx-enterprise==0.69.5
 edx-i18n-tools==0.4.5
 edx-lint==0.5.5
 edx-milestones==0.1.13
@@ -278,13 +278,14 @@ redis==2.10.6
 reportlab==3.1.44
 requests-oauthlib==0.6.1
 requests==2.9.1
+rest-condition==1.0.3
 rfc6266-parser==0.0.5.post2
 rules==1.3
 s3transfer==0.1.13
 sailthru-client==2.2.3
 scipy==0.14.0
 scrapy==1.1.2             # via pa11ycrawler
-selenium==3.12.0
+selenium==3.13.0
 semantic-version==2.6.0
 service-identity==17.0.0  # via scrapy
 shapely==1.2.16