Keep track of seen documents to reset line counts across pages

docs/sphinxext/ipython_directive.py

@@ -560,6 +560,21 b' class IpythonDirective(Directive):'
         return savefig_dir, source_dir, rgxin, rgxout, promptin, promptout
 
     def setup(self):
+        # reset the execution count if we haven't processed this doc
+        #NOTE: this may be borked if there are multiple seen_doc tmp files
+        #check time stamp?
+        seen_docs = [i for i in os.listdir(tempfile.tempdir)
+            if i.startswith('seen_doc')]
+        if seen_docs:
+            fname = os.path.join(tempfile.tempdir, seen_docs[0])
+            docs = open(fname).read().split('\n')
+            if not self.state.document.current_source in docs:
+                self.shell.IP.history_manager.reset()
+                self.shell.IP.execution_count = 1
+        else: # haven't processed any docs yet
+            docs = []
+
+
         # get config values
         (savefig_dir, source_dir, rgxin,
                 rgxout, promptin, promptout) = self.get_config_options()
@@ -578,6 +593,13 b' class IpythonDirective(Directive):'
                                       store_history=False)
         self.shell.clear_cout()
 
+        # write the filename to a tempfile because it's been "seen" now
+        if not self.state.document.current_source in docs:
+            fd, fname = tempfile.mkstemp(prefix="seen_doc", text=True)
+            fout = open(fname, 'a')
+            fout.write(self.state.document.current_source+'\n')
+            fout.close()
+
         return rgxin, rgxout, promptin, promptout