2024 Dec 30 Ver.0 created for improvenment

Signed-off-by: Milind Kamat <36366961+milindkamat0507@users.noreply.github.com>

app.py

@@ -3,14 +3,16 @@ from typing import List, Dict, Tuple, Optional, Any
 
 class StreamlitTutorial:
     """
-    Main class for Streamlit Tutorial application.
-    Handles all UI rendering and tutorial logic.
+    Main class for the Streamlit Tutorial application.
+    Handles rendering of all tutorial content, user interaction, and state management.
+    Provides modular components for different tutorial topics and interactive examples.
     """
 
     def __init__(self):
         """
         Initializes the Streamlit Tutorial application.
-        Sets up page config, session state, and styles.
+        Sets up page configuration, session state, and custom styling.
+        Prepares the application environment for tutorial content.
         """
         st.set_page_config(page_title="Learn Streamlit", layout="wide")
         self.init_session_state()
@@ -18,9 +20,12 @@ class StreamlitTutorial:
 
     def init_session_state(self) -> None:
         """
-        Initializes session state variables for the application.
-        Handles code input persistence and current topic tracking.
-        Returns: None
+        Initializes session state variables for persistent data storage.
+        Creates state variables for code input and current topic tracking.
+        Ensures consistent state across reruns.
+
+        Returns:
+            None
         """
         if 'code_input' not in st.session_state:
             st.session_state.code_input = ""
@@ -28,9 +33,12 @@ class StreamlitTutorial:
 
     def setup_styles(self) -> None:
         """
-        Sets up custom CSS styles for the application.
-        Handles margins, padding, and layout styling.
-        Returns: None
+        Configures custom CSS styles for the application.
+        Sets up consistent styling for code examples, outputs, and layout.
+        Enhances visual presentation of tutorial content.
+
+        Returns:
+            None
         """
         st.markdown("""
         <style>
@@ -55,9 +63,12 @@ class StreamlitTutorial:
 
     def get_text_elements(self) -> List[Tuple[str, str]]:
         """
-        Provides list of text element examples with their code.
-        Used for generating code examples and snippets.
-        Returns: List of tuples containing (title, code snippet)
+        Provides collection of text element examples with corresponding code.
+        Defines basic text manipulation and display examples.
+        Used for generating code examples and quick snippets.
+
+        Returns:
+            List[Tuple[str, str]]: List of (element name, code snippet) pairs
         """
         return [
             ("Title", "st.title('Main Title')"),
@@ -70,9 +81,12 @@ class StreamlitTutorial:
 
     def get_input_elements(self) -> List[Tuple[str, str]]:
         """
-        Provides list of input widget examples with their code.
-        Used for demonstrating various input widget types.
-        Returns: List of tuples containing (widget name, code snippet)
+        Provides collection of input widget examples with corresponding code.
+        Defines various input types and interactive elements.
+        Used for demonstrating user input capabilities.
+
+        Returns:
+            List[Tuple[str, str]]: List of (widget name, code snippet) pairs
         """
         return [
             ("Text Input", "name = st.text_input('Enter your name')"),
@@ -85,10 +99,14 @@ class StreamlitTutorial:
     def render_text_elements(self, col: st.delta_generator.DeltaGenerator) -> None:
         """
         Renders text element examples in the specified column.
-        Shows code and live output for each text element.
+        Displays code snippets with live output for each text element.
+        Creates interactive learning environment for text elements.
+
         Arguments:
-            col: Streamlit column object for rendering
-        Returns: None
+            col: Streamlit column object for content rendering
+
+        Returns:
+            None
         """
         with col:
             st.markdown("### 📝 Code Examples")
@@ -100,10 +118,192 @@ class StreamlitTutorial:
                     with st.container(border=True):
                         exec(code)
 
-Would you like me to continue with the documentation for the remaining methods? This pattern shows:
-1. Method purpose and description
-2. Arguments and their types
-3. Return value hints
-4. Clear explanation of functionality
+    def render_input_elements(self, col: st.delta_generator.DeltaGenerator) -> None:
+        """
+        Renders input widget examples in the specified column.
+        Displays code snippets with live output for each input widget.
+        Creates interactive learning environment for input elements.
+
+        Arguments:
+            col: Streamlit column object for content rendering
+
+        Returns:
+            None
+        """
+        with col:
+            st.markdown("### 📝 Code Examples")
+            for title, code in self.get_input_elements():
+                with st.container(border=True):
+                    st.markdown(f"**{title}**")
+                    st.code(code)
+                    st.markdown("Live output:")
+                    with st.container(border=True):
+                        exec(code)
+
+    def render_help_section(self, col: st.delta_generator.DeltaGenerator) -> None:
+        """
+        Renders comprehensive help content in the specified column.
+        Provides educational content, best practices, and examples.
+        Creates expandable sections for different learning topics.
+
+        Arguments:
+            col: Streamlit column object for content rendering
+
+        Returns:
+            None
+        """
+        with col:
+            st.markdown("### 📚 Learning Guide")
+            
+            # Basic Concepts Section
+            with st.expander("🎯 Basic Concepts", expanded=True):
+                st.markdown(self._get_basic_concepts_content())
+            
+            # Best Practices Section    
+            with st.expander("💡 Best Practices"):
+                st.markdown(self._get_best_practices_content())
+            
+            # Examples Section
+            with st.expander("🔍 Examples & Use Cases"):
+                st.markdown(self._get_examples_content())
+            
+            # Common Mistakes Section
+            with st.expander("⚠️ Common Mistakes"):
+                st.markdown(self._get_common_mistakes_content())
+            
+            # Advanced Tips Section
+            with st.expander("🚀 Advanced Tips"):
+                st.markdown(self._get_advanced_tips_content())
+
+    def render_playground(self, col: st.delta_generator.DeltaGenerator, 
+                         snippets: Dict[str, str]) -> None:
+        """
+        Renders interactive coding playground in specified column.
+        Provides code editor, snippets, and live output area.
+        Creates environment for hands-on practice.
+
+        Arguments:
+            col: Streamlit column object for content rendering
+            snippets: Dictionary of code snippets for quick insertion
+
+        Returns:
+            None
+        """
+        with col:
+            st.markdown("### 💻 Practice Playground")
+            
+            # Code Input Area
+            code_input = st.text_area(
+                "Try Streamlit commands:",
+                value=st.session_state.code_input,
+                height=200,
+                placeholder="Example:\nst.title('My Title')"
+            )
+
+            # Quick Snippets Section
+            with st.container(border=True):
+                st.markdown("#### 📚 Quick Snippets")
+                cols = st.columns([4, 1])
+                with cols[0]:
+                    selected_snippet = st.selectbox(
+                        "Choose snippet:",
+                        list(snippets.keys()),
+                        label_visibility="collapsed"
+                    )
+                with cols[1]:
+                    if st.button("Add", use_container_width=True):
+                        new_code = snippets[selected_snippet]
+                        if code_input:
+                            code_input += f"\n{new_code}"
+                        else:
+                            code_input = new_code
+                        st.session_state.code_input = code_input
+
+            # Control Buttons
+            col1, col2, col3 = st.columns(3)
+            with col1:
+                if st.button("▶️ Run", use_container_width=True):
+                    st.session_state.code_input = code_input
+            with col2:
+                if st.button("🔄 Reset", use_container_width=True):
+                    st.session_state.code_input = ""
+                    code_input = ""
+            with col3:
+                if st.button("💾 Copy", use_container_width=True):
+                    st.code(code_input)
+
+            # Live Output Section
+            st.markdown("#### 🎨 Live Output")
+            with st.container(border=True):
+                if code_input:
+                    try:
+                        exec(code_input)
+                    except Exception as e:
+                        st.error(f"Error: {str(e)}")
+
+            # Tips Section
+            with st.expander("💡 Tips & Help"):
+                st.markdown(self.get_topic_tips(st.session_state.current_topic))
+
+    def get_topic_tips(self, topic: str) -> str:
+        """
+        Provides topic-specific tips and guidance.
+        Returns formatted markdown string with helpful information.
+        Customizes content based on current tutorial topic.
+
+        Arguments:
+            topic: Current tutorial topic name
+
+        Returns:
+            str: Markdown formatted tips and help content
+        """
+        tips = {
+            "Basic Text Elements": """
+                **Quick Tips:**
+                - Use markdown for formatting
+                - Try different header levels
+                - Combine text elements
+                - Use colored text with :color[text]
+            """,
+            "Input Widgets": """
+                **Quick Tips:**
+                - Use unique keys for widgets
+                - Store widget values in variables
+                - Add validation for inputs
+                - Combine widgets for complex inputs
+            """
+        }
+        return tips.get(topic, "Tips coming soon!")
+
+    def run(self) -> None:
+        """
+        Main execution method for the Streamlit Tutorial application.
+        Handles topic selection and content rendering.
+        Manages overall application flow and state.
+
+        Returns:
+            None
+        """
+        with st.sidebar:
+            st.title("Streamlit Tutorial")
+            st.session_state.current_topic = st.radio(
+                "Choose a Topic:",
+                ["Basic Text Elements", "Input Widgets", "Layouts & Containers", 
+                 "Data Display", "Charts & Plots", "Interactive Components"]
+            )
+
+        if st.session_state.current_topic == "Basic Text Elements":
+            cols = st.columns([1.2, 1, 1])
+            self.render_text_elements(cols[0])
+            self.render_help_section(cols[1])
+            self.render_playground(cols[2], dict(self.get_text_elements()))
+            
+        elif st.session_state.current_topic == "Input Widgets":
+            cols = st.columns([1.2, 1, 1])
+            self.render_input_elements(cols[0])
+            self.render_help_section(cols[1])
+            self.render_playground(cols[2], dict(self.get_input_elements()))
 
-I can document the remaining methods in the same comprehensive way.
+if __name__ == "__main__":
+    app = StreamlitTutorial()
+    app.run()