chore: compliance with python nomenclature

Author: RiwsPy

app/pages/company/company.py

@@ -1,3 +1,5 @@
+from typing import Union
+
 import numpy as np
 import pandas as pd
 from taipy.gui import Markdown, State, get_state_id
@@ -13,19 +15,19 @@
 # Init bindings (used in md file)
 selected_company = DEFAULT_COMPANY
 selector_company: list[str] = []
-selected_year: str = None
+selected_year: Union[str, None] = None
 selector_year: list[str] = []
-company_sector: str = None
+company_sector: Union[str, None] = None
 company_upe_name: str = ""
 
-df_selected_company: pd.DataFrame = None
-df_count_company: pd.DataFrame = None
+df_selected_company: Union[pd.DataFrame, None] = None
+df_count_company: Union[pd.DataFrame, None] = None
 
 # Viz store map[viz_id,viz_dict]
 # Important for taipy bindings
 # Use Viz.init on each page with set of viz_id
 viz: dict[str, dict] = Viz.init(
-    (
+    {
         "company_sector",
         "company_upe_name",
         "company_nb_reports",
@@ -36,7 +38,7 @@
         "fin_jurisdictions_top_revenue",
         "fin_pretax_profit_and_employees_rank",
         "fin_pretax_profit_and_profit_per_employee",
-    )
+    }
 )
 
 

app/viz.py

@@ -1,4 +1,5 @@
 import io
+from typing import Any, Optional, Union
 
 import pandas as pd
 import plotly.graph_objects as go
@@ -10,10 +11,10 @@ def __init__(
         self,
         id: str,
         state: State,
-        data: pd.DataFrame = None,
-        fig: go.Figure = None,
-        title: str = None,
-        sub_title: str = None,
+        data: Union[pd.DataFrame, Any] = None,
+        fig: Optional[go.Figure] = None,
+        title: Optional[str] = None,
+        sub_title: Optional[str] = None,
     ):
         self.id = id
         self.state = state
@@ -36,21 +37,29 @@ def _on_download(self):
             buffer.write(self.sub_title + "\n" + str(data))
         download(self.state, content=bytes(buffer.getvalue(), "UTF-8"), name="data.csv")
 
-    def _to_state(self) -> dict[str]:
+    def _to_state(self) -> dict[str, Any]:
         return {
-            "data": None if self is None else self.data,
-            "fig": None if self is None else self.fig,
-            "title": None if self is None else self.title,
-            "sub_title": None if self is None else self.sub_title,
-            "on_action": None if self is None else self.on_action,
+            "data": self.data,
+            "fig": self.fig,
+            "title": self.title,
+            "sub_title": self.sub_title,
+            "on_action": self.on_action,
         }
 
-    def to_state(self) -> dict[str]:
+    def to_state(self) -> dict[str, Any]:
         return self._to_state()
 
-    def _to_empty() -> dict[str,]:
-        return Viz._to_state(None)
+    @staticmethod
+    def _to_empty() -> dict[str, None]:
+        return {
+            "data": None,
+            "fig": None,
+            "title": None,
+            "sub_title": None,
+            "on_action": None,
+        }
 
+    @staticmethod
     def init(viz_set: set[str]) -> dict[str, dict]:
         viz: dict[str, dict] = {}
         for viz_id in viz_set: