chore: typos and print session state

pages/1_📈_Plotting.py

@@ -5,7 +5,7 @@ import time
 
 st.header("Plotting Time Series Data")
 st.markdown("Users can load their time-series data in **.csv** format and select a particular feature and plot-type.\
- Go ahead and use the sidebar on the left to upload your data files and to start visualizing it!")
+ Go ahead and use the sidebar on the left to upload your data files to start visualizing it!")
 
 with st.sidebar:
     plot = st.radio("Select the kind of visualization:",('Feature collection', 'Users comparison', 'Data distribution'))
@@ -21,17 +21,17 @@ with st.sidebar:
                 st.session_state['df'] = df
         st.success("Your data has been successfully loaded! 🤗")
 
-if 'df' in list(st.session_state.keys()):
-    st.caption("Your uploaded data:") 
+if 'df' in st.session_state:
+    st.caption("Your uploaded data:")
     st.dataframe(st.session_state.df)
 else:
     st.caption("Upload your data using the sidebar and select a plot-type to start :sunglasses:")
 
-df_base = st.session_state.df if 'df' in list(st.session_state.keys()) else pd.DataFrame()
+df_base = st.session_state.df if 'df' in st.session_state else pd.DataFrame()
 n = len(df_base)
 col1, col2 = st.columns(2)
 
-if not df_base.empty:
+if not df_base.empty and not n:
     with col1:
         st.info(f"Your data has {n} samples.")
         slider_range = list(range(n))
@@ -54,7 +54,7 @@ if not df_base.empty:
                 st.caption("The chart above shows...")
             # 
     # with col2:
-if 'df_plot' in list(st.session_state.keys()):
+if 'df_plot' in st.session_state:
     with st.spinner(f"Drawing plot to visualize {plot.lower()}"):
         st.caption("Your visualization:")
         st.caption("df_plot:")
@@ -68,4 +68,5 @@ if 'df_plot' in list(st.session_state.keys()):
         st.dataframe(df_plot_t)
         st.line_chart(df_plot_t, y=list(df_plot_t.columns), height=600, width=600)
 elif df_base.empty and file:
-    st.warning("Consider running outlier detection to clean your data!", icon="⚠️")
+    st.warning("Consider running outlier detection to clean your data!", icon="⚠️")
+st.caption(f"developer:: session_state keys: {list(session_state.keys())}")