Migrate deprecated use_container_width=True to width='stretch'

Streamlit 1.56 flags use_container_width for removal after 2025-12-31;
our Community Cloud logs were flooded with "Please replace
use_container_width with width." warnings on every rerun. Switch the
Plotly / DataFrame calls in the app package to the new keyword-only
`width='stretch'` form. Behaviour is identical; logs stay clean and the
app is future-proof against the upcoming removal.

Made-with: Cursor

Author: Yuma-Ichikawa

app/_common.py

@@ -584,7 +584,7 @@ def _graph_preview(g: nx.Graph, title: str) -> None:
         yaxis={"visible": False},
         height=380,
     )
-    st.plotly_chart(fig, use_container_width=True)
+    st.plotly_chart(fig, width='stretch')
 
 
 def _coupling_preview(J: np.ndarray, title: str) -> None:
@@ -595,7 +595,7 @@ def _coupling_preview(J: np.ndarray, title: str) -> None:
         plot_bgcolor="rgba(0,0,0,0)",
         height=400,
     )
-    st.plotly_chart(fig, use_container_width=True)
+    st.plotly_chart(fig, width='stretch')
 
 
 def preview_problem(problem: Any, cfg: dict) -> None:
@@ -619,7 +619,7 @@ def preview_problem(problem: Any, cfg: dict) -> None:
             plot_bgcolor="rgba(0,0,0,0)",
             height=400,
         )
-        st.plotly_chart(fig, use_container_width=True)
+        st.plotly_chart(fig, width='stretch')
         return
     if kind == "custom":
         import torch

app/pages/1_Solve.py

@@ -148,7 +148,7 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 legend={"x": 0.01, "y": 0.02, "bgcolor": "rgba(255,255,255,0.6)"},
             )
         )
-        self.chart_holder.plotly_chart(fig, use_container_width=True)
+        self.chart_holder.plotly_chart(fig, width='stretch')
 
         # --- Population heatmap: replicas sorted by best-so-far --------
         pop = np.stack(self.pop, axis=1)  # (sol_size, T)
@@ -192,7 +192,7 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 legend={"x": 0.01, "y": 0.99, "bgcolor": "rgba(255,255,255,0.6)"},
             )
         )
-        self.pop_holder.plotly_chart(pop_fig, use_container_width=True)
+        self.pop_holder.plotly_chart(pop_fig, width='stretch')
 
         # --- Diversity curve: std across replicas vs epoch --------------
         div_fig = go.Figure()
@@ -216,7 +216,7 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 showlegend=False,
             )
         )
-        self.diversity_holder.plotly_chart(div_fig, use_container_width=True)
+        self.diversity_holder.plotly_chart(div_fig, width='stretch')
 
 
 run = st.button("▶  Run QQA", type="primary")

app/pages/2_Visualize.py

@@ -69,11 +69,11 @@ def _retheme(fig):
 
 with tab_hist:
     fig = viz.plot_history(result, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig), use_container_width=True)
+    st.plotly_chart(_retheme(fig), width='stretch')
 
 with tab_best:
     fig = viz.plot_best_trajectory(result, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig), use_container_width=True)
+    st.plotly_chart(_retheme(fig), width='stretch')
 
 with tab_sched:
     if result.history and "bg" in result.history:
@@ -97,12 +97,12 @@ def _retheme(fig):
                 height=400,
             )
         )
-        st.plotly_chart(fig, use_container_width=True)
+        st.plotly_chart(fig, width='stretch')
 
 with tab_sol:
     try:
         fig = viz.plot_solution_heatmap(result, problem=problem, backend="plotly", show=False)
-        st.plotly_chart(_retheme(fig), use_container_width=True)
+        st.plotly_chart(_retheme(fig), width='stretch')
     except Exception as e:
         st.info(f"No solution heatmap available: {e}")
 
@@ -111,7 +111,7 @@ def _retheme(fig):
         st.info("No population snapshots recorded for this run.")
     else:
         fig = viz.plot_population_evolution(pop_tracker, backend="plotly", show=False)
-        st.plotly_chart(_retheme(fig), use_container_width=True)
+        st.plotly_chart(_retheme(fig), width='stretch')
         st.caption(
             "Each row is one of the `sol_size` replicas (sorted by final loss). "
             "Colour encodes per-replica loss."
@@ -123,7 +123,7 @@ def _retheme(fig):
     else:
         try:
             fig = viz.plot_population_embedding(pop_tracker, backend="plotly", show=False)
-            st.plotly_chart(_retheme(fig), use_container_width=True)
+            st.plotly_chart(_retheme(fig), width='stretch')
             st.caption(
                 "2D PCA projection of the entire continuous-variable population over time. "
                 "Each faint grey line is one replica's trajectory; markers are coloured by epoch."
@@ -177,7 +177,7 @@ def _retheme(fig):
                        "gridcolor": palette()["grid"], "linecolor": palette()["border"]},
             )
         )
-        st.plotly_chart(fig, use_container_width=True)
+        st.plotly_chart(fig, width='stretch')
         st.caption("Stacked loss distributions. Early rows (top) → late rows (bottom).")
 
 with tab_fate:
@@ -216,7 +216,7 @@ def _retheme(fig):
                 height=460,
             )
         )
-        st.plotly_chart(fig, use_container_width=True)
+        st.plotly_chart(fig, width='stretch')
         st.caption(
             "Top-ranked replicas are drawn in the primary accent, lower-ranked "
             "ones fade toward the secondary accent."

app/pages/3_Compare.py

@@ -87,18 +87,18 @@ def _retheme(fig):
 
     st.success("Sweep complete.")
     st.subheader("Results table")
-    st.dataframe(rows, use_container_width=True)
+    st.dataframe(rows, width='stretch')
 
     try:
         import pandas as pd
 
         df = pd.DataFrame(rows)
         fig = viz.plot_parallel_coordinates(df, objective="best_obj", backend="plotly", show=False)
         st.subheader("Parallel coordinates")
-        st.plotly_chart(_retheme(fig), use_container_width=True)
+        st.plotly_chart(_retheme(fig), width='stretch')
     except Exception as e:
         st.info(f"Parallel-coordinates unavailable: {e}")
 
     st.subheader("Run comparison")
     fig2 = viz.plot_run_comparison(results, labels=labels, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig2), use_container_width=True)
+    st.plotly_chart(_retheme(fig2), width='stretch')