Curso de PYTHON desde CERO (Completo)


Summary

The video provides a comprehensive overview of Python, emphasizing its versatility and widespread use in various fields. It covers fundamental concepts such as variables, data types, conditional statements, loops, functions, modules, file manipulation, and data visualization using libraries like pandas and matplotlib. Additionally, it delves into advanced topics like object-oriented programming, exceptions, and regular expressions, providing practical examples and demonstrations to aid in understanding and application. The speaker also touches on income sources, investment options, and the importance of continuous learning beyond the course.


Introduction to Python

Python is a widely used language in various fields including technology, science, and web development. It is known for its general-purpose programming capabilities and easy learning curve.

Features of Python

Python is a general-purpose programming language, high-level, and dynamically typed. It is easy to learn and understand, making it suitable for beginners and experienced programmers alike.

Why Learn Python

Learning Python can lead to various job opportunities and salary increases. It is a versatile language used in web development, artificial intelligence, data analysis, and more.

Evolution of Python

Python was created by Guido Van Rossum in 1991 with subsequent versions adding new features and improvements over the years. The language continues to evolve with updates and enhancements.

Using Variables in Python

Variables in Python store data values that can be changed or updated throughout the program. Python allows for different data types like strings, integers, floats, and booleans to be stored in variables.

Concatenating Strings and Numbers

In Python, strings can be concatenated using various methods like the + operator or f-strings. Numbers can also be converted to strings for integration purposes in the code.

Variable Declaration and Deletion

Explanation of variable declaration using the assignment operator and deletion using the 'del' operator in Python.

Conditional Statements

Introduction to case-sensitive language in Python and demonstration of conditional statements using 'if', 'else', and 'elif' statements.

Lists and Tuples

Explanation and demonstration of lists and tuples as composite data types in Python.

Sets and Dictionaries

Overview of sets and dictionaries as composite data types in Python, with examples of set creation and dictionary key-value pairs.

Arithmetic Operators

Explanation and demonstration of arithmetic operators such as addition, subtraction, multiplication, division, exponentiation, and modulus in Python.

Comparison Operators

Explanation and demonstration of comparison operators for comparing values in Python, returning 'true' or 'false' based on conditions.

Conditional Statements Continued

Further explanation and demonstration of conditional statements including 'if-else' and 'if-elif-else' constructs in Python.

How IF Statements Work

Explanation of how IF statements work in Python with examples of conditional checks based on income levels in different countries.

Nested IF Statements

Demonstration of nested IF statements and the concept of putting an IF statement inside another IF statement for more complex conditions in Python programming.

Logical Operators

Explanation of logical operators including AND, OR, and NOT in Python to combine conditions for decision making in programming.

String Methods

Overview of string methods in Python, showing how to manipulate text such as converting to uppercase or lowercase, capitalizing letters, finding substrings, and replacing text within a string.

Searching and Counting Strings

Demonstration of methods to search for specific characters within a string, count occurrences of characters, and check if a string is numeric or alphanumeric in Python.

List Methods

Explanation of list methods in Python including creating lists, checking the length of a list, appending elements, extending lists, inserting elements, removing items by index or value, and more.

Deleting Items in a List

Demonstration of deleting items in a list and avoiding elimination of the entire list.

Sorting and Reversing Lists

Explanation of sorting and reversing lists in Python, along with the functions sort() and reverse().

Using Tuples and Count Function

Discussion on using tuples, counting elements in tuples, and working with the count() function.

Index and Get Methods in Dictionaries

Explanation of using index and get methods in dictionaries to find elements and handle errors effectively.

Clearing and Popping Items from Dictionary

Demonstration of clearing and popping items from dictionaries in Python.

Handling Inputs and Practical Exercises

Explanation of working with user inputs in Python and starting practical exercises to reinforce learning.

Python Course Introduction

Introduction to the Python course and explanation of the content covered in the intermediate basic section.

Variable Unpacking

Explanation of the variable unpacking technique in Python using tuples and lists.

Tuples in Python

Creation and manipulation of tuples in Python, focusing on their immutability and memory optimization.

Sets in Python

Introduction to sets in Python, including creating sets and using frozen sets for nested sets.

Subset and Superset in Sets

Explanation of subset, superset, and disjoint sets in Python with examples.

Loops in Python

Demonstration of different types of loops in Python including 'for' loops, iterating lists and tuples, and using 'else' in loops.

Dictionary Iteration

Iterating through dictionaries in Python and using the 'items' method to access keys and values.

Advanced Iterations

Demonstration of advanced iteration techniques in Python using 'continue' and 'break' statements in loops.

Learning about Loops

The video introduces loops in programming, explaining concepts like looping through strings, creating lists of numbers, and iterating through characters. It also covers the 'for' loop, 'break' statements, and the 'else' clause within loops.

Understanding 'While' Loops

The 'while' loop is explained, detailing how it continues as long as the condition is true and how it can potentially lead to infinite loops. Practical examples and demonstrations are provided to illustrate its functionality.

Introduction to Functions

The video delves into functions, emphasizing their significance in programming, the benefits of using functions to avoid code repetition, enhance modularity, and ease debugging. It covers the concept of abstraction in Python and the creation of custom functions.

Optimal Form of Using Args Parameter

Explains how to show the optimal form of using the args parameter in Python by putting numbers, using asterisks, and converting parameters into a list.

F-String Parameter Usage

Describes the usage of the F-string parameter to return the sum of a list of numbers passed as arguments.

Using Asterisk Operator as Argument

Demonstrates another way to pass a list but instead of running the sum asterisk numbers, it works the same way to find the total amount.

Creating and Showing Lists

Illustrates the process of creating lists by requesting and displaying elements within the list using Python functions and parameters.

Nested Loops for Prime Number Determination

Guides on creating a function to determine prime numbers using nested loops and providing explanations on how the code works efficiently.

Module Concept and Usage

Explains the concept of modules in Python, categorizing them into programming, third-party, and own modules, and demonstrates the import and usage of modules within Python scripts.

Working with Modules and Namespaces

Explained how to work with modules and namespaces in Python, including referencing functions as methods within a module and how to use namespaces effectively to avoid heavy and redundant code.

Creating and Renaming Modules

Demonstrated how to create, rename, import, and work with modules in Python, including renaming variables, importing specific functions, and understanding the best practices for module management.

Importing Modules from Folders

Discussed how to import modules from folders, access module paths, and work with multiple modules within a directory structure, emphasizing the importance of organization and efficient importing methods.

Working with Packages

Explained the concept of packages in Python, how to create and import packages, differentiate between modules and packages, and handle subpackages within a directory structure.

File Manipulation in Python

Covered the basics of file manipulation in Python, including reading, writing, and manipulating text files, understanding file formats, encoding, and the importance of proper file handling and resource management.

Adding Lines to Files

Demonstrates how to add lines to a file in Python, including creating a dialogue-like structure and running the program to see the results.

Working with Files

Discusses working with files in Python, including copying, deleting, overwriting, and appending data to files.

Creating and Reading CSV Files

Shows how to create and read CSV files in Python using the pandas library, emphasizing the importance and advantages of using pandas over CSV for data analysis.

Installing Pandas and Reading CSV Files

Explains how to install pandas, read CSV files using pandas, and manipulate data frames to perform data analysis effectively.

Data Manipulation with Pandas

Covers data manipulation tasks in pandas such as accessing specific rows and columns, changing data types, replacing values, and handling missing or repeated data in data frames.

Visualizing Data with Matplotlib

Introduces visualizing data using matplotlib and seaborn libraries to create line plots and bar charts based on the data in a CSV file.

Introduction to Different Sources of Income

The speaker discusses various sources of income including permanent work, freelance work, influencer work, advertising income, and investments in crypto.

Creating Graphs Representing Income Sources

The speaker explains how to create a graph showing different sources of income using bar plots instead of line plots for better representation.

Total Income Calculation and Graph Display

The process of calculating the total income and displaying it along with the income sources in a print statement is described, along with troubleshooting errors in the program.

Introduction to Scatter Plot

The speaker introduces a scatter plot, its uses, and the basics of object-oriented programming as a foundation for understanding data visualization techniques.

Object-Oriented Programming Explanation

Details about object-oriented programming, including class, object, properties, behaviors, and its importance in software development are explained, with a recommendation for further learning.

Exception Handling and Custom Exceptions

A detailed explanation of exceptions, event handling, and creating custom exceptions using Python is provided along with practical examples and demonstrations.

Regular Expressions

The concept of regular expressions is introduced, covering various expressions, special characters, and their applications in searching and matching patterns within text data.

Regular Expressions Patterns

Explanation of various regular expression patterns like finding matches, replacements, and validations in text strings.

Regular Expressions for Text Validation

Details on using regular expressions to validate text strings, including specific examples like validating dates, phone numbers, and replacing characters.

Regular Expressions for Email Validation

Explanation of using regular expressions to validate email addresses based on specific patterns and criteria.

Regular Expressions for URL Validation

Demonstration of using regular expressions to validate URLs, including requirements like starting with 'HTTPS' and specific formats for validation.

Regular Expressions for Specific Country Validation

Using regular expressions to validate text strings for specific country requirements, such as identifying a country code and hiding sensitive information like phone numbers.

Completion of Regular Expressions Section

Summary of the regular expressions section with a mention of available resources for further exploration and learning.

Course Conclusion and Encouragement

Discussion on the completion of the course, encouraging the application of knowledge in projects, and hinting at future content.

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