mypy support

- we stop supporting python 3.5

doc/conf.py

@@ -19,6 +19,7 @@
 #
 import os
 import sys
+from typing import List
 from ess import __version__
 
 sys.path.insert(0, os.path.abspath("../"))
@@ -92,7 +93,7 @@ language = None
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This patterns also effect to html_static_path and html_extra_path
-exclude_patterns = []
+exclude_patterns: List[str] = []
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
@@ -250,20 +251,19 @@ htmlhelp_basename = "ESSPythonToolsdoc"
 
 # -- Options for LaTeX output ---------------------------------------------
 
-latex_elements = {
-    # The paper size ('letterpaper' or 'a4paper').
-    #
-    # 'papersize': 'letterpaper',
-    # The font size ('10pt', '11pt' or '12pt').
-    #
-    # 'pointsize': '10pt',
-    # Additional stuff for the LaTeX preamble.
-    #
-    # 'preamble': '',
-    # Latex figure (float) alignment
-    #
-    # 'figure_align': 'htbp',
-}
+latex_elements = {str, str}
+# The paper size ('letterpaper' or 'a4paper').
+#
+# 'papersize': 'letterpaper',
+# The font size ('10pt', '11pt' or '12pt').
+#
+# 'pointsize': '10pt',
+# Additional stuff for the LaTeX preamble.
+#
+# 'preamble': '',
+# Latex figure (float) alignment
+#
+# 'figure_align': 'htbp',
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,

setup.py

@@ -21,7 +21,6 @@ setup(
         "License :: Other/Proprietary License",
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
     ],