Python for Data Science
About Course
A practical, portfolio‑oriented introduction to using Python to load, clean, explore, visualize, and model data. Learners write real code in Jupyter notebooks, analyze public datasets, and ship a mini‑project that demonstrates end‑to‑end data science workflow. Two delivery options are available: a 4‑week intensive for working professionals and an 8‑week paced track for students.
What Will You Learn?
- Python essentials for data work: syntax, data types, control flow, functions, virtual environments.
- Jupyter + notebook workflows: reproducible analysis, markdown, project structure.
- Data wrangling with pandas: importing CSV/Excel/JSON, joins, reshaping, missing data, feature engineering.
- Numerical computing with NumPy: arrays, broadcasting, vectorization for speed.
- Exploratory data analysis (EDA): descriptive stats, grouping, outlier handling, data profiling.
- Visualization: Matplotlib/Seaborn/Plotly for univariate, bivariate, and multivariate visuals; best practices.
- Introductory statistics for data science: distributions, sampling, confidence intervals, hypothesis testing.
- Intro machine learning with scikit‑learn: problem framing, train/test split, regression, classification, metrics.
- Data ethics and reproducibility: bias awareness, documentation, versioning.
- Communication: turning analysis into clear insights with visuals and narratives.
Course Content
Module 1 — Python foundations for data
Get productive with Python quickly; write readable, reusable code.
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Python syntax, variables, types (str, int, float, bool)
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Lists, tuples, dicts, sets; slicing and comprehensions
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Control flow (if/else, loops), functions, modules
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Virtual environments and package management (pip/conda)
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Good practices: naming, style, helpful built‑ins
Module 2 — Working like a data scientist in Jupyter
Reproducible analysis and clean notebook workflows.
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Jupyter notebooks vs. scripts; markdown and code cells
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File structure for projects; data directories
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Inline visuals; exporting to HTML/PDF
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Versioning notebooks; using checkpoints
Module 3 — Data ingestion and cleaning with pandas
Load, inspect, and make messy data usable
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Reading CSV/Excel/JSON; preview, dtypes, memory usage
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Selecting/filtering; boolean masks; query; assign
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Handling missing data; deduplication; type conversions
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Dates/times; categorical data; text columns
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Tidy data principles; wide↔long reshaping (melt/pivot)
Module 4 — Combining and reshaping data
Build analysis‑ready tables from multiple sources.
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Joins/merges (inner/left/right/outer)
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Concatenate/append; hierarchical indexes
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GroupBy aggregations; window/rolling ops
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Feature engineering: bins, ratios, encoded flags
Module 5 — Exploratory data analysis (EDA)
Understand structure, quality, and patterns before modeling.
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Descriptive stats; distributions; skew/kurtosis
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Outliers and robust summaries
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Correlations; pairwise exploration
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Data profiling checklists and EDA templates
Module 6 — Visualization for insight
Tell clear, accurate stories with charts.
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Matplotlib/Seaborn basics and style guides
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Univariate: hist, kde, box/violin
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Bivariate: scatter, regplot, bar/line with CIs
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Multivariate: faceting, heatmaps, pairplots
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Plotly for interactive dashboards (intro)
Module 7 — Practical statistics for data science
Apply core stats to real questions.
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Sampling, CLT intuition
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Confidence intervals; standard errors
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Hypothesis testing (t‑test, chi‑square) and p‑values
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Effect sizes and practical significance
Module 8 — Intro to machine learning with scikit‑learn
Frame problems, build baselines, and evaluate models.
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Problem types: regression vs. classification
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Train/validation/test; cross‑validation
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Pipelines and preprocessing (scaling, encoding)
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Models: Linear/Logistic Regression, k‑NN, Decision Trees
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Metrics: RMSE/MAE, accuracy, precision/recall, ROC‑AUC
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Avoiding leakage; simple feature importance
Module 9 — Communicating results
From notebook to narrative.
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Structuring an analysis report (context→methods→findings→limits)
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Visual design for stakeholders; annotation best practices
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Reproducible exports; brief slide‑deck storytelling
Module 10 — Capstone mini‑project
End‑to‑end analysis on a real dataset with a clear question.
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Project scoping and success criteria
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Data acquisition → cleaning → EDA → model/baseline → insights
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Deliverables: polished notebook, 1‑page summary, 5‑slide readout
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Optional: lightweight Streamlit app or interactive Plotly report
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