Python Case Studies: Build Chatbots, Apps & Systems
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Python Case Studies: Build Chatbots, Apps & Systems
This course is part of Python Developer: From Basics to Case Studies Specialization
Instructor: EDUCBA
Included with
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16 reviews
16 reviews
What you'll learn
Build a chatbot with NLTK and rule-based logic.
Design an expense manager app with SQL and visualization.
Implement markup processing and PDF generation workflows.
Skills you'll gain
Tools you'll learn
Details to know
17 assignments
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There are 5 modules in this course
By completing this course, learners will design, implement, and validate real-world Python projects while gaining hands-on experience in natural language processing, database-driven applications, and text-processing automation. They will develop a rule-based chatbot, build and enhance an expense manager app, and implement a full markup processing system with PDF generation.
The course begins with chatbot development, where learners set up their environment, apply NLTK tools, and refine reflection dictionaries and pairs to create intelligent conversational agents. Next, learners will design and enhance an expense manager app, focusing on form creation, SQL integration, data visualization, and advanced category management to deliver a fully functional financial tracking tool. The course concludes with the Instant Markup project, guiding learners through parsing, rules, filters, and handlers to transform raw text into structured documents, ending with PDF output and internet-based data gathering. Unlike traditional Python tutorials, this course is case-study driven, meaning every skill is applied in a practical context. Learners not only master Python coding but also apply Bloomβs higher-order skillsβanalyzing, designing, and implementing solutions to real-world problems. By the end, participants will be equipped to tackle projects that combine NLP, database operations, and automated text processing.
This module introduces learners to the foundations of chatbot development using Python and NLTK. It covers environment setup, the reflection dictionary, pairs, and validation methods to create a functional rule-based chatbot capable of handling real conversations.
What's included
9 videos4 assignments
9 videosβ’Total 58 minutes
- Introduction to Projectβ’3 minutes
- Downloading Understaingβ’14 minutes
- Installation of Tools Anaconda and NLTKβ’9 minutes
- Reflection Dictionaryβ’7 minutes
- Pairsβ’5 minutes
- Checking Output Part 1β’8 minutes
- Checking Output Part 2β’8 minutes
- Checking Output Part 3β’3 minutes
- Checking Output Part 4β’1 minute
4 assignmentsβ’Total 60 minutes
- Building a Rule-Based Chatbotβ’30 minutes
- Project Setup and Toolsβ’10 minutes
- Chatbot Foundations β Reflections and Pairsβ’10 minutes
- Testing and Validating the Chatbotβ’10 minutes
This module focuses on designing and developing an expense manager app using Python, HTML, and SQL. Learners will build input forms, manage expense entries, and apply Bootstrap for user-friendly interfaces.
What's included
9 videos3 assignments
9 videosβ’Total 88 minutes
- Introduction to Projectβ’10 minutes
- Expense Form Creation Part 1β’8 minutes
- Expense Form Creation Part 2β’9 minutes
- Expense Form Creation Part 3β’9 minutes
- Saving Expense Dataβ’12 minutes
- Saving Expense Data Continueβ’10 minutes
- Categories and Dateβ’7 minutes
- Categories and Date Continueβ’12 minutes
- More on Categories and Dateβ’10 minutes
3 assignmentsβ’Total 50 minutes
- Designing an Expense Manager Appβ’30 minutes
- Project Introduction and Form Creationβ’10 minutes
- Data Handling and Database Operationsβ’10 minutes
This module extends the expense manager app with advanced category management, data visualization, and final refinements. Learners will implement IDs, build charts, query expenses, and refine Python class-based methods for efficient application design.
What's included
10 videos4 assignments
10 videosβ’Total 106 minutes
- Adding Custom Category Part 1β’12 minutes
- Adding Custom Category Part 2β’10 minutes
- Adding Custom Category Part 3β’6 minutes
- Plotting Data on Chart Part 1β’9 minutes
- Plotting Data on Chart Part 2β’13 minutes
- Plotting Data on Chart Part 3β’11 minutes
- Different Data Part 1β’10 minutes
- Different Data Part 2β’12 minutes
- Different Data Part 3β’9 minutes
- Different Data Part 4β’13 minutes
4 assignmentsβ’Total 60 minutes
- Enhancing the Expense Managerβ’30 minutes
- Advanced Category Managementβ’10 minutes
- Visualization and Queryingβ’10 minutes
- Final App Refinementsβ’10 minutes
This module introduces the Instant Markup project, where learners explore parsing, rules, filters, and handlers. It emphasizes text structuring and rule-based processing for automated document handling.
What's included
9 videos3 assignments
9 videosβ’Total 83 minutes
- Introductionβ’6 minutes
- Paragraphβ’10 minutes
- Adding Markupsβ’10 minutes
- Adding Parserβ’12 minutes
- Filters and Handlersβ’11 minutes
- Rule Superclassβ’9 minutes
- Constructing rules and Filtersβ’9 minutes
- Handler Script Part 1β’8 minutes
- Handler Script Part 2β’8 minutes
3 assignmentsβ’Total 50 minutes
- Instant Markup β Text Processing Foundationsβ’30 minutes
- Parser and Markup Basicsβ’10 minutes
- Rules, Filters, and Handlersβ’10 minutes
This module finalizes the Instant Markup project by integrating scripts, preparing data, and generating outputs. Learners will apply rule scripts, implement the main program, and create final outputs including PDF generation and internet-based data gathering.
What's included
10 videos3 assignments
10 videosβ’Total 94 minutes
- Rules Script Part 1β’7 minutes
- Rules Script Part 2β’7 minutes
- Main Programβ’12 minutes
- Preparationsβ’10 minutes
- Gathering Dataβ’10 minutes
- Hello World PDFβ’10 minutes
- PolyLinesβ’9 minutes
- First Implementationβ’9 minutes
- Gathering Data from Internetβ’8 minutes
- Final Scriptβ’11 minutes
3 assignmentsβ’Total 50 minutes
- Advanced Markup and Final Implementationβ’30 minutes
- Rules and Main Programβ’10 minutes
- Preparing and Generating Outputβ’10 minutes
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Reviewed on Dec 25, 2025
The course was excellent! Very clear explanations.
Reviewed on Jan 8, 2026
Really enjoyed the course! great professor and gives very useful advice aside from the course itself.
Reviewed on Jan 4, 2026
Instructor was excellent! Very engaging, patient, and clear instructions.
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