Update the requirements

Author: mdmintz

requirements.txt

@@ -1,18 +1,17 @@
 pip>=19.2.2
 setuptools>=41.1.0
 wheel>=0.33.4
-six
-nose
-ipdb
-unittest2
+six>=1.12.0
+nose>=1.3.7
+ipdb>=0.12.2
 idna==2.8
 chardet==3.0.4
 urllib3==1.25.3
 requests>=2.22.0
 selenium==3.141.0
 pluggy>=0.12.0
 pytest>=4.6.5;python_version<"3"
-pytest>=5.0.1;python_version>="3"
+pytest>=5.1.0;python_version>="3"
 pytest-cov>=2.7.1
 pytest-forked>=1.0.2
 pytest-html==1.22.0

setup.py

@@ -58,14 +58,14 @@
         'six',
         'nose',
         'ipdb',
-        'unittest2',
         'idna==2.8',  # Must stay in sync with "requests"
         'chardet==3.0.4',  # Must stay in sync with "requests"
         'urllib3==1.25.3',  # Must stay in sync with "requests"
         'requests>=2.22.0',
         'selenium==3.141.0',
         'pluggy>=0.12.0',
-        'pytest>=4.6.5',  # Keep at >=4.6.5 for Python 2 compatibility
+        'pytest>=4.6.5;python_version<"3"',  # For Python 2 compatibility
+        'pytest>=5.1.0;python_version>="3"',
         'pytest-cov>=2.7.1',
         'pytest-forked>=1.0.2',
         'pytest-html==1.22.0',  # Keep at 1.22.0 unless tested on Windows