{"id":61885,"url":"https://github.com/labex-labs/data-science-free-tutorials","name":"data-science-free-tutorials","description":"Free Data Science tutorials for beginners with 151 interactive lessons. Easy-to-follow programming guides with hands-on practice exercises.","projects_count":154,"last_synced_at":"2026-06-13T18:00:26.965Z","repository":{"id":242160234,"uuid":"808847060","full_name":"labex-labs/data-science-free-tutorials","owner":"labex-labs","description":"Free Data Science tutorials for beginners with 151 interactive lessons. 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These Data Science Courses provide a structured roadmap for exploring data analysis and interpretation. Master essential concepts and tools through hands-on, non-video lessons and practical exercises in an interactive playground, strengthening skills in statistical analysis, machine learning, and data visualization.\n\n|   Index | Name                                                                                                                                                                                                                                                          | Difficulty   | Tutorial Link                                                                                                                                              |\n|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|\n|     001 | [📖 NumPy Math Games](https://labex.io/tutorials/python-numpy-math-games-10)                                                                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-numpy-math-games-10)                                                                                           |\n|     002 | [📖 Print Hello Python](https://labex.io/tutorials/python-print-hello-python-61)                                                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-print-hello-python-61)                                                                                         |\n|     003 | [📖 Classes and Objects](https://labex.io/tutorials/python-classes-and-objects-71)                                                                                                                                                                            | Advanced     | [🔗 View](https://labex.io/tutorials/python-classes-and-objects-71)                                                                                        |\n|     004 | [📖 Python Code Comments](https://labex.io/tutorials/python-python-code-comments-72)                                                                                                                                                                          | Intermediate | [🔗 View](https://labex.io/tutorials/python-python-code-comments-72)                                                                                       |\n|     005 | [📖 Python Data Structures Fundamentals](https://labex.io/tutorials/python-python-data-structures-fundamentals-74)                                                                                                                                            | Intermediate | [🔗 View](https://labex.io/tutorials/python-python-data-structures-fundamentals-74)                                                                        |\n|     006 | [📖 Python Function Fundamentals](https://labex.io/tutorials/python-python-function-fundamentals-79)                                                                                                                                                          | Advanced     | [🔗 View](https://labex.io/tutorials/python-python-function-fundamentals-79)                                                                               |\n|     007 | [📖 Python's Conditional Statements](https://labex.io/tutorials/python-python-s-conditional-statements-82)                                                                                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-python-s-conditional-statements-82)                                                                            |\n|     008 | [📖 Exploring IPython's Interactive Computing Features](https://labex.io/tutorials/python-exploring-ipython-s-interactive-computing-features-83)                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-exploring-ipython-s-interactive-computing-features-83)                                                         |\n|     009 | [📖 Python Math and Augmented Assignment](https://labex.io/tutorials/python-python-math-and-augmented-assignment-88)                                                                                                                                          | Beginner     | [🔗 View](https://labex.io/tutorials/python-python-math-and-augmented-assignment-88)                                                                       |\n|     010 | [📖 Variable Type Conversion](https://labex.io/tutorials/python-variable-type-conversion-95)                                                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-variable-type-conversion-95)                                                                                   |\n|     011 | [📖 NumPy Einsum for Scientific Computing](https://labex.io/tutorials/numpy-numpy-einsum-for-scientific-computing-4991)                                                                                                                                       | Beginner     | [🔗 View](https://labex.io/tutorials/numpy-numpy-einsum-for-scientific-computing-4991)                                                                     |\n|     012 | [📖 NumPy Einsum Function](https://labex.io/tutorials/numpy-numpy-einsum-function-8001)                                                                                                                                                                       | Beginner     | [🔗 View](https://labex.io/tutorials/numpy-numpy-einsum-function-8001)                                                                                     |\n|     013 | [📖 Your First Matplotlib Lab](https://labex.io/tutorials/python-your-first-matplotlib-lab-92737)                                                                                                                                                             | Beginner     | [🔗 View](https://labex.io/tutorials/python-your-first-matplotlib-lab-92737)                                                                               |\n|     014 | [📖 Generating Secure Dynamic Templates with Jinja2](https://labex.io/tutorials/flask-generating-secure-dynamic-templates-with-jinja2-188849)                                                                                                                 | Beginner     | [🔗 View](https://labex.io/tutorials/flask-generating-secure-dynamic-templates-with-jinja2-188849)                                                         |\n|     015 | [📖 Your First Python Lab](https://labex.io/tutorials/python-your-first-python-lab-270256)                                                                                                                                                                    | Intermediate | [🔗 View](https://labex.io/tutorials/python-your-first-python-lab-270256)                                                                                  |\n|     016 | [📖 Python Variables and Data Types](https://labex.io/tutorials/python-python-variables-and-data-types-271605)                                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-python-variables-and-data-types-271605)                                                                        |\n|     017 | [📖 Conditional Statements in Python](https://labex.io/tutorials/python-conditional-statements-in-python-290723)                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-conditional-statements-in-python-290723)                                                                       |\n|     018 | [📖 Convert Hours to Seconds](https://labex.io/tutorials/python-convert-hours-to-seconds-290725)                                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-convert-hours-to-seconds-290725)                                                                               |\n|     019 | [📖 Data Types and Conversion](https://labex.io/tutorials/python-data-types-and-conversion-290726)                                                                                                                                                            | Intermediate | [🔗 View](https://labex.io/tutorials/python-data-types-and-conversion-290726)                                                                              |\n|     020 | [📖 How to Interact with Windows API in Python](https://labex.io/tutorials/python-how-to-interact-with-windows-api-in-python-391548)                                                                                                                          | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-interact-with-windows-api-in-python-391548)                                                             |\n|     021 | [📖 Explore MySQL System Tables](https://labex.io/tutorials/mysql-explore-mysql-system-tables-391702)                                                                                                                                                         | Beginner     | [🔗 View](https://labex.io/tutorials/mysql-explore-mysql-system-tables-391702)                                                                             |\n|     022 | [📖 Space Academy Communication](https://labex.io/tutorials/python-space-academy-communication-393069)                                                                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/python-space-academy-communication-393069)                                                                            |\n|     023 | [📖 Python Data Types and Operators](https://labex.io/tutorials/python-python-data-types-and-operators-393077)                                                                                                                                                | Intermediate | [🔗 View](https://labex.io/tutorials/python-python-data-types-and-operators-393077)                                                                        |\n|     024 | [📖 Create an Astronaut Name Tag Processor](https://labex.io/tutorials/python-create-an-astronaut-name-tag-processor-393083)                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-create-an-astronaut-name-tag-processor-393083)                                                                 |\n|     025 | [📖 Python Control Structures](https://labex.io/tutorials/python-python-control-structures-393123)                                                                                                                                                            | Intermediate | [🔗 View](https://labex.io/tutorials/python-python-control-structures-393123)                                                                              |\n|     026 | [📖 Create a Rocket Launch Countdown](https://labex.io/tutorials/python-create-a-rocket-launch-countdown-393128)                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-create-a-rocket-launch-countdown-393128)                                                                       |\n|     027 | [📖 Python Functions and Modules](https://labex.io/tutorials/python-python-functions-and-modules-393141)                                                                                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-python-functions-and-modules-393141)                                                                           |\n|     028 | [📖 Space Mission Calculator](https://labex.io/tutorials/python-space-mission-calculator-393156)                                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-space-mission-calculator-393156)                                                                               |\n|     029 | [📖 Python Data Structures](https://labex.io/tutorials/python-python-data-structures-393168)                                                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-python-data-structures-393168)                                                                                 |\n|     030 | [📖 Space Mission Management System](https://labex.io/tutorials/python-space-mission-management-system-393176)                                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-space-mission-management-system-393176)                                                                        |\n|     031 | [📖 How to efficiently copy elements from one tuple to another in Python](https://labex.io/tutorials/python-how-to-efficiently-copy-elements-from-one-tuple-to-another-in-python-395024)                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-efficiently-copy-elements-from-one-tuple-to-another-in-python-395024)                                   |\n|     032 | [📖 How to access and modify attributes of a Python object](https://labex.io/tutorials/python-how-to-access-and-modify-attributes-of-a-python-object-395033)                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-access-and-modify-attributes-of-a-python-object-395033)                                                 |\n|     033 | [📖 How to access nested keys in a Python JSON object](https://labex.io/tutorials/python-how-to-access-nested-keys-in-a-python-json-object-395034)                                                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-access-nested-keys-in-a-python-json-object-395034)                                                      |\n|     034 | [📖 How to compare two Python strings for equality in a case-insensitive manner?](https://labex.io/tutorials/python-how-to-compare-two-python-strings-for-equality-in-a-case-insensitive-manner-395043)                                                       | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-compare-two-python-strings-for-equality-in-a-case-insensitive-manner-395043)                            |\n|     035 | [📖 How to generate unique random lottery numbers in Python](https://labex.io/tutorials/python-how-to-generate-unique-random-lottery-numbers-in-python-395065)                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-generate-unique-random-lottery-numbers-in-python-395065)                                                |\n|     036 | [📖 How to handle KeyError when accessing nested keys in a Python JSON object](https://labex.io/tutorials/python-how-to-handle-keyerror-when-accessing-nested-keys-in-a-python-json-object-395073)                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-keyerror-when-accessing-nested-keys-in-a-python-json-object-395073)                              |\n|     037 | [📖 What are best practices for extracting values from nested Python JSON objects](https://labex.io/tutorials/python-what-are-best-practices-for-extracting-values-from-nested-python-json-objects-395100)                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-what-are-best-practices-for-extracting-values-from-nested-python-json-objects-395100)                          |\n|     038 | [📖 What is the best way to check if a Python file is empty or not](https://labex.io/tutorials/python-what-is-the-best-way-to-check-if-a-python-file-is-empty-or-not-395116)                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-what-is-the-best-way-to-check-if-a-python-file-is-empty-or-not-395116)                                         |\n|     039 | [📖 How to handle file not found error in Python](https://labex.io/tutorials/python-how-to-handle-file-not-found-error-in-python-397683)                                                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-file-not-found-error-in-python-397683)                                                           |\n|     040 | [📖 How to handle file paths across different operating systems in Python](https://labex.io/tutorials/python-how-to-handle-file-paths-across-different-operating-systems-in-python-397684)                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-file-paths-across-different-operating-systems-in-python-397684)                                  |\n|     041 | [📖 How to use next to get the next element from a Python iterator](https://labex.io/tutorials/python-how-to-use-next-to-get-the-next-element-from-a-python-iterator-397701)                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-use-next-to-get-the-next-element-from-a-python-iterator-397701)                                         |\n|     042 | [📖 What are the differences between file access modes in Python?](https://labex.io/tutorials/python-what-are-the-differences-between-file-access-modes-in-python-397713)                                                                                     | Beginner     | [🔗 View](https://labex.io/tutorials/python-what-are-the-differences-between-file-access-modes-in-python-397713)                                           |\n|     043 | [📖 What is the difference between positional arguments and optional arguments in Python's argparse module?](https://labex.io/tutorials/python-what-is-the-difference-between-positional-arguments-and-optional-arguments-in-python-s-argparse-module-397717) | Beginner     | [🔗 View](https://labex.io/tutorials/python-what-is-the-difference-between-positional-arguments-and-optional-arguments-in-python-s-argparse-module-397717) |\n|     044 | [📖 How to activate and deactivate a Python virtual environment](https://labex.io/tutorials/python-how-to-activate-and-deactivate-a-python-virtual-environment-397940)                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-activate-and-deactivate-a-python-virtual-environment-397940)                                            |\n|     045 | [📖 How to check the Python system path to find necessary modules](https://labex.io/tutorials/python-how-to-check-the-python-system-path-to-find-necessary-modules-397953)                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-check-the-python-system-path-to-find-necessary-modules-397953)                                          |\n|     046 | [📖 How to create a defaultdict with a default value of 0 in Python](https://labex.io/tutorials/python-how-to-create-a-defaultdict-with-a-default-value-of-0-in-python-397967)                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-create-a-defaultdict-with-a-default-value-of-0-in-python-397967)                                        |\n|     047 | [📖 How to find the top N elements in a Python list](https://labex.io/tutorials/python-how-to-find-the-top-n-elements-in-a-python-list-397996)                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-find-the-top-n-elements-in-a-python-list-397996)                                                        |\n|     048 | [📖 How to handle different HTTP status codes in Python requests](https://labex.io/tutorials/python-how-to-handle-different-http-status-codes-in-python-requests-398002)                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-different-http-status-codes-in-python-requests-398002)                                           |\n|     049 | [📖 How to handle missing or invalid function arguments in Python](https://labex.io/tutorials/python-how-to-handle-missing-or-invalid-function-arguments-in-python-398011)                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-missing-or-invalid-function-arguments-in-python-398011)                                          |\n|     050 | [📖 How to handle unauthorized responses in Python requests](https://labex.io/tutorials/python-how-to-handle-unauthorized-responses-in-python-requests-398018)                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-handle-unauthorized-responses-in-python-requests-398018)                                                |\n|     051 | [📖 How to implement authentication in a Python client-server system](https://labex.io/tutorials/python-how-to-implement-authentication-in-a-python-client-server-system-398021)                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-implement-authentication-in-a-python-client-server-system-398021)                                       |\n|     052 | [📖 How to implement error handling in Python socket communication](https://labex.io/tutorials/python-how-to-implement-error-handling-in-python-socket-communication-398023)                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-implement-error-handling-in-python-socket-communication-398023)                                         |\n|     053 | [📖 How to include additional files in a Python package](https://labex.io/tutorials/python-how-to-include-additional-files-in-a-python-package-398030)                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-include-additional-files-in-a-python-package-398030)                                                    |\n|     054 | [📖 How to parse response content from a Python requests call](https://labex.io/tutorials/python-how-to-parse-response-content-from-a-python-requests-call-398048)                                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-parse-response-content-from-a-python-requests-call-398048)                                              |\n|     055 | [📖 How to redirect the print function to a file in Python](https://labex.io/tutorials/python-how-to-redirect-the-print-function-to-a-file-in-python-398057)                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-redirect-the-print-function-to-a-file-in-python-398057)                                                 |\n|     056 | [📖 How to set custom headers in a Python requests call](https://labex.io/tutorials/python-how-to-set-custom-headers-in-a-python-requests-call-398067)                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-set-custom-headers-in-a-python-requests-call-398067)                                                    |\n|     057 | [📖 How to use itertools.combinations in Python](https://labex.io/tutorials/python-how-to-use-itertools-combinations-in-python-398083)                                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-use-itertools-combinations-in-python-398083)                                                            |\n|     058 | [📖 How to use the __dict__ attribute to manage instance data in Python](https://labex.io/tutorials/python-how-to-use-the-dict-attribute-to-manage-instance-data-in-python-398095)                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-use-the-dict-attribute-to-manage-instance-data-in-python-398095)                                        |\n|     059 | [📖 How to check if an object is iterable in Python](https://labex.io/tutorials/python-how-to-check-if-an-object-is-iterable-in-python-398148)                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-check-if-an-object-is-iterable-in-python-398148)                                                        |\n|     060 | [📖 How to configure network interfaces in Python](https://labex.io/tutorials/python-how-to-configure-network-interfaces-in-python-398157)                                                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-configure-network-interfaces-in-python-398157)                                                          |\n|     061 | [📖 How to create a list with a range of numbers in Python](https://labex.io/tutorials/python-how-to-create-a-list-with-a-range-of-numbers-in-python-398166)                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-create-a-list-with-a-range-of-numbers-in-python-398166)                                                 |\n|     062 | [📖 How to efficiently process large CSV files in Python](https://labex.io/tutorials/python-how-to-efficiently-process-large-csv-files-in-python-398186)                                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-efficiently-process-large-csv-files-in-python-398186)                                                   |\n|     063 | [📖 How to properly set up an __init__.py file in a Python package](https://labex.io/tutorials/python-how-to-properly-set-up-an-init-py-file-in-a-python-package-398237)                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-properly-set-up-an-init-py-file-in-a-python-package-398237)                                             |\n|     064 | [📖 How to run a Python program from the command line](https://labex.io/tutorials/python-how-to-run-a-python-program-from-the-command-line-398242)                                                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-run-a-python-program-from-the-command-line-398242)                                                      |\n|     065 | [📖 How to send and receive messages using Python sockets](https://labex.io/tutorials/python-how-to-send-and-receive-messages-using-python-sockets-398244)                            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                            |\n|     070 | [📖 How to filter out non-alphanumeric characters from Python strings](https://labex.io/tutorials/python-how-to-filter-out-non-alphanumeric-characters-from-python-strings-415420)                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-filter-out-non-alphanumeric-characters-from-python-strings-415420)                                      |\n|     071 | [📖 How to determine grade based on marks using Python if-elif-else](https://labex.io/tutorials/python-how-to-determine-grade-based-on-marks-using-python-if-elif-else-415721)                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-determine-grade-based-on-marks-using-python-if-elif-else-415721)                                        |\n|     072 | [📖 How to resolve import errors in Python](https://labex.io/tutorials/python-how-to-resolve-import-errors-in-python-415766)                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-resolve-import-errors-in-python-415766)                                                                 |\n|     073 | [📖 How to use a lambda function for custom sorting in Python](https://labex.io/tutorials/python-how-to-use-a-lambda-function-for-custom-sorting-in-python-415786)                                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-use-a-lambda-function-for-custom-sorting-in-python-415786)                                              |\n|     074 | [📖 How to convert a Python list to a set while preserving the original 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                            |\n|     081 | [📖 How to format the hexadecimal output in Python](https://labex.io/tutorials/python-how-to-format-the-hexadecimal-output-in-python-417964)                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-format-the-hexadecimal-output-in-python-417964)                                                         |\n|     082 | [📖 Create Your First MySQL Database](https://labex.io/tutorials/mysql-create-your-first-mysql-database-418265)                                                                                                                                               | Beginner     | [🔗 View](https://labex.io/tutorials/mysql-create-your-first-mysql-database-418265)                                                                        |\n|     083 | [📖 Create a Product Catalog 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                            |\n|     090 | [📖 How to use regex capture groups in Python](https://labex.io/tutorials/python-how-to-use-regex-capture-groups-in-python-420906)                                                                                                                            | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-use-regex-capture-groups-in-python-420906)                                                              |\n|     091 | [📖 How to clean up virtual environments](https://labex.io/tutorials/python-how-to-clean-up-virtual-environments-425433)                                                                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-clean-up-virtual-environments-425433)                                                                   |\n|     092 | [📖 How to deactivate Python venv](https://labex.io/tutorials/python-how-to-deactivate-python-venv-425435)                                                                                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-deactivate-python-venv-425435)                                                                          |\n|     093 | [📖 How to pass arguments in Python multiprocessing](https://labex.io/tutorials/python-how-to-pass-arguments-in-python-multiprocessing-430780)                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-how-to-pass-arguments-in-python-multiprocessing-430780)                                                        |\n|     094 | [📖 How to add time in Python datetime](https://labex.io/tutorials/python-how-to-add-time-in-python-datetime-437712)                                    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                            |\n|     099 | [📖 MySQL Functions and Custom Logic](https://labex.io/tutorials/mysql-mysql-functions-and-custom-logic-550908)                                                                                                                                               | Beginner     | [🔗 View](https://labex.io/tutorials/mysql-mysql-functions-and-custom-logic-550908)                                                                        |\n|     100 | [📖 MySQL Indexes and Performance Optimization](https://labex.io/tutorials/mysql-mysql-indexes-and-performance-optimization-550910)                                                                                                                           | Beginner     | [🔗 View](https://labex.io/tutorials/mysql-mysql-indexes-and-performance-optimization-550910)                                                              |\n|     101 | [📖 MySQL Stored Procedures 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View](https://labex.io/tutorials/mysql-mysql-views-and-virtual-tables-550920)                                                                          |\n|     106 | [📖 PostgreSQL Advanced Data Types](https://labex.io/tutorials/postgresql-postgresql-advanced-data-types-550947)                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/postgresql-postgresql-advanced-data-types-550947)                                                                     |\n|     107 | [📖 PostgreSQL Advanced Query Writing](https://labex.io/tutorials/postgresql-postgresql-advanced-query-writing-550948)                                                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/postgresql-postgresql-advanced-query-writing-550948)                                                                  |\n|     108 | [📖 PostgreSQL Index Optimization](https://labex.io/tutorials/postgresql-postgresql-index-optimization-550955)                                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/postgresql-postgresql-index-optimization-550955)                                                                      |\n|     109 | [📖 PostgreSQL Relationships and Joins](https://labex.io/tutorials/postgresql-postgresql-relationships-and-joins-550959)                                                                                                                                      | Beginner     | [🔗 View](https://labex.io/tutorials/postgresql-postgresql-relationships-and-joins-550959)                                                                 |\n|     110 | [📖 PostgreSQL Role and Permission 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                            |\n|     117 | [📖 Understand Identifiers in Python](https://labex.io/tutorials/python-understand-identifiers-in-python-585776)                                                                                                                                              | Beginner     | [🔗 View](https://labex.io/tutorials/python-understand-identifiers-in-python-585776)                                                                       |\n|     118 | [📖 Use VS Code for Python Development](https://labex.io/tutorials/python-use-vs-code-for-python-development-585783)                                                                                                                                          | Beginner     | [🔗 View](https://labex.io/tutorials/python-use-vs-code-for-python-development-585783)                                                                     |\n|     119 | [📖 Write and Debug a Simple Python Program](https://labex.io/tutorials/python-write-and-debug-a-simple-python-program-585786)                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/python-write-and-debug-a-simple-python-program-585786)                                                                |\n|     120 | [📖 NumPy Array Creation](https://labex.io/tutorials/numpy-numpy-array-creation-596338)                                                                                                                                                                       | Beginner     | [🔗 View](https://labex.io/tutorials/numpy-numpy-array-creation-596338)                                                                                    |\n|     121 | [📖 NumPy Indexing on ndarrays](https://labex.io/tutorials/numpy-numpy-indexing-on-ndarrays-596339)                                                            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                            |\n|     126 | [📖 NumPy Structured Arrays](https://labex.io/tutorials/numpy-numpy-structured-arrays-596344)                                                                                                                                                                 | Beginner     | [🔗 View](https://labex.io/tutorials/numpy-numpy-structured-arrays-596344)                                                                                 |\n|     127 | [📖 NumPy Universal Functions](https://labex.io/tutorials/numpy-numpy-universal-functions-596345)                                                                                                                                                             | Beginner     | [🔗 View](https://labex.io/tutorials/numpy-numpy-universal-functions-596345)                                                                               |\n|     128 | [📖 Pandas Basic Data 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                                  |\n|     135 | [📖 Pandas Selecting Data](https://labex.io/tutorials/pandas-pandas-selecting-data-596397)                                                                                                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/pandas-pandas-selecting-data-596397)                                                                                  |\n|     136 | [📖 Pandas Sorting Data](https://labex.io/tutorials/pandas-pandas-sorting-data-596398)                                                                                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/pandas-pandas-sorting-data-596398)                                                                                    |\n|     137 | [📖 Scikit-learn 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Beginner     | [🔗 View](https://labex.io/tutorials/sklearn-scikit-learn-knn-classification-596491)                                                                       |\n|     142 | [📖 Scikit-learn Linear Regression](https://labex.io/tutorials/sklearn-scikit-learn-linear-regression-596492)                                                                                                                                                 | Beginner     | [🔗 View](https://labex.io/tutorials/sklearn-scikit-learn-linear-regression-596492)                                                                        |\n|     143 | [📖 Scikit-learn Model Evaluation](https://labex.io/tutorials/sklearn-scikit-learn-model-evaluation-596493)                                                                                                                                                   | Beginner     | [🔗 View](https://labex.io/tutorials/sklearn-scikit-learn-model-evaluation-596493)                                                                         |\n|     144 | [📖 Matplotlib Bar Charts](https://labex.io/tutorials/matplotlib-matplotlib-bar-charts-596563)                                                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/matplotlib-matplotlib-bar-charts-596563)                                                                              |\n|     145 | [📖 Matplotlib Basic Line Plots](https://labex.io/tutorials/matplotlib-matplotlib-basic-line-plots-596564)                                                                                                                                                    | Beginner     | [🔗 View](https://labex.io/tutorials/matplotlib-matplotlib-basic-line-plots-596564)                                                                        |\n|     146 | [📖 Matplotlib Customizing Line Plots](https://labex.io/tutorials/matplotlib-matplotlib-customizing-line-plots-596565)                                                                                                                                        | Beginner     | [🔗 View](https://labex.io/tutorials/matplotlib-matplotlib-customizing-line-plots-596565)                                                                  |\n|     147 | [📖 Matplotlib Histograms](https://labex.io/tutorials/matplotlib-matplotlib-histograms-596566)                                                                                                                                                                | Beginner     | [🔗 View](https://labex.io/tutorials/matplotlib-matplotlib-histograms-596566)                                                                              |\n|     148 | [📖 Matplotlib Installation and Import](https://labex.io/tutorials/matplotlib-matplotlib-installation-and-import-596567)                                   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View](https://labex.io/tutorials/matplotlib-matplotlib-scatter-plots-596569)                                                                           |\n|     151 | [📖 Matplotlib Subplots Creation](https://labex.io/tutorials/matplotlib-matplotlib-subplots-creation-596570)                                                                                                                                                  | Beginner     | [🔗 View](https://labex.io/tutorials/matplotlib-matplotlib-subplots-creation-596570)                                                                       |\n\n## More\n\n- 🔗 [Data Science Learn more about](https://labex.io/skilltrees/data-science)\n- 🔗 [Awesome Programming Courses](https://github.com/labex-labs/awesome-programming-courses)\n- 🔗 [Awesome Programming Projects](https://github.com/labex-labs/awesome-programming-projects)\n\n","projects_url":"https://awesome.ecosyste.ms/api/v1/lists/labex-labs%2Fdata-science-free-tutorials/projects"}