Patch obitools for not importing too recent packages

distutils.ext/obidistutils/command/build_sphinx.py

@@ -13,26 +13,29 @@ import sys
 
 try:
     from sphinx.setup_command import BuildDoc as ori_build_sphinx
+    
+    class build_sphinx(ori_build_sphinx):
+        '''
+        Build Sphinx documentation in html, epub and man formats 
+        '''
+
+        description = __doc__
+    
+        def run(self):
+            self.builder='html'
+            self.finalize_options()
+            ori_build_sphinx.run(self)
+            self.builder='epub'
+            self.finalize_options()
+            ori_build_sphinx.run(self)
+            self.builder='man'
+            self.finalize_options()
+            ori_build_sphinx.run(self)
+
 except ImportError:
     if not is_serenity() and install_requirements():
         log.info("Restarting installation with all dependencies ok")
         rerun_with_anothe_python(os.path.realpath(sys.executable))
+        
     
-class build_sphinx(ori_build_sphinx):
-    '''
-    Build Sphinx documentation in html, epub and man formats 
-    '''
-
-    description = __doc__
-
-    def run(self):
-        self.builder='html'
-        self.finalize_options()
-        ori_build_sphinx.run(self)
-        self.builder='epub'
-        self.finalize_options()
-        ori_build_sphinx.run(self)
-        self.builder='man'
-        self.finalize_options()
-        ori_build_sphinx.run(self)
     
\ No newline at end of file

requirements.txt

 --extra-index-url https://pypi.python.org/simple/
 Cython>=0.24
-Sphinx>=1.2.0
+Sphinx<2.0
 wheel>=0.24.0
 virtualenv>=1.11.0
 ipython<6.0