refactor: parse main slot only on demand

BREAKING CHANGE: legagy code needs to call parse_main_slot()

Refs: #56

examples/page_manipulation.py

@@ -67,6 +67,7 @@ def mass_page_edit():
     wtsite = WtSite.from_domain("wiki-dev.open-semantic-lab.org", pwd_file_path)
     # wtpage = wtsite.get_WtPage("LabNote:220601-sist-0001-ni")
     # wtpage = wtsite.get_WtPage("testesfesefsef")
+    # wtpage.parse_main_slot()
     # wtpage.append_template("TestTemplate", {"p1": "v1"})
     # wtpage.append_text("Some text",)
     # wtpage.append_template("TestTemplate", {"p1": "v2"})

src/osw/wtsite.py

@@ -948,9 +948,6 @@ def init(self):
         if self.exists:
             self._original_content = self._page.text()
             self._content = self._original_content
-            self._dict = wt.create_flat_content_structure_from_wikitext(
-                self._content, array_mode="only_multiple"
-            )
             # multi content revisions
             # second API call - ToDo: combine / replace with first call
             rev = self.wtSite._site.api(
@@ -989,6 +986,14 @@ def init(self):
                     # todo: set content for slots not in revision["slots"] (use
                     #  SLOTS) --> create empty slots
 
+    def parse_main_slot(self):
+        """Parses the main slot content of the page
+        Requires wikitext dependencies installed with 'pip install osw[wikitext]'
+        """
+        self._dict = wt.create_flat_content_structure_from_wikitext(
+            self._content, array_mode="only_multiple"
+        )
+
     def create_slot(self, slot_key, content_model):
         """Creates a new slot for the page. Availables Keys and content models are defined in
         SLOTS.