Add packaging requirement and properly compare scipy version (johannf…

…aouzi#144)

doc/pytsdtwdoc.py

@@ -29,15 +29,15 @@
 import inspect
 import textwrap
 import warnings
-
+from packaging.version import parse
 
 from numpydoc.numpydoc import mangle_docstrings
 from docutils.statemachine import ViewList
 from sphinx.domains.python import PythonDomain
 
 import scipy
 SCIPY_VERSION = scipy.__version__
-if SCIPY_VERSION < '1.5':
+if parse(SCIPY_VERSION) < parse('1.5'):
     from scipy._lib._util import getargspec_no_self
 else:
     from scipy._lib._util import getfullargspec_no_self
@@ -85,7 +85,7 @@ def run(self):
             # Interface function
             name = self.arguments[0].strip()
             obj = _import_object(name)
-            if SCIPY_VERSION < '1.5':
+            if parse(SCIPY_VERSION) < parse('1.5'):
                 args, varargs, keywords, defaults = getargspec_no_self(obj)
             else:
                 (args, varargs, keywords,
@@ -94,7 +94,7 @@ def run(self):
             # Implementation function
             impl_name = self.options['impl']
             impl_obj = _import_object(impl_name)
-            if SCIPY_VERSION < '1.5':
+            if parse(SCIPY_VERSION) < parse('1.5'):
                 impl_args, impl_varargs, impl_keywords, impl_defaults = (
                     getargspec_no_self(impl_obj))
             else:

setup.py

@@ -43,7 +43,8 @@
         'sphinx==1.8.5',
         'sphinx-gallery',
         'numpydoc',
-        'matplotlib'
+        'matplotlib',
+        'packaging'
     ]
 }
 PACKAGE_DATA = {