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Python 3 Essentials

4.6 out of 5 rating

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5 Days

30 CPD hours

About this course

Experienced Programmers and Systems Administrators.


Throughout the course students will be led through a series of progressively advanced topics, where each topic consists of lecture, group discussion, comprehensive hands-on lab exercises, and lab review. This course is 'skills-centric, designed to train attendees in core Python and web development skills beyond an intermediate level, coupling the most current, effective techniques with best practices. Working within in an engaging, hands-on learning environment, guided by our expert Python practitioner, students will learn to:
Create working Python scripts following best practices
Use python data types appropriately
Read and write files with both text and binary data
Search and replace text with regular expressions
Get familiar with the standard library and its work-saving modules
Use lesser-known but powerful Python data types
Create 'real-world', professional Python applications
Work with dates, times, and calendars
Know when to use collections such as lists, dictionaries, and sets
Understand Pythonic features such as comprehensions and iterators
Write robust code using exception handling


An introductory and beyond-level practical, hands-on Python training course that leads the student from the basics of writing and running Python scripts to more advanced features.

An Overview of Python
  • What is python
    1 -- An overview of Python
    What is python
    Python Timeline
    Advantages/Disadvantages of Python
    Getting help with pydoc
The Python Environment
  • Starting Python
    Using the interpreter
    Running a Python script
    Python scripts on Unix/Windows
    Editors and IDEs
Getting Started
  • Using variables
    Built-in functions
    Converting among types
    Writing to the screen
    Command line parameters
Flow Control
  • About flow control
    White space
    Conditional expressions
    Relational and Boolean operators
    While loops
    Alternate loop exits
  • About sequences
    Lists and list methods
    Indexing and slicing
    Iterating through a sequence
    Sequence functions, keywords, and operators
    List comprehensions
    Generator Expressions
    Nested sequences
Working with files
  • File overview
    Opening a text file
    Reading a text file
    Writing to a text file
    Reading and writing raw (binary) data
    Converting binary data with struct
Dictionaries and Sets
  • About dictionaries
    Creating dictionaries
    Iterating through a dictionary
    About sets
    Creating sets
    Working with sets
  • Defining functions
    Global and local scope
    Nested functions
    Returning values
  • The sorted() function
    Alternate keys
    Lambda functions
    Sorting collections
    Using operator.itemgetter()
    Reverse sorting
Errors and Exception Handling
  • Syntax errors
    Using try/catch/else/finally
    Handling multiple exceptions
    Ignoring exceptions
Modules and Packages
  • The import statement
    Module search path
    Creating Modules
    Using packages
    Function and Module aliases
  • About o-o programming
    Defining classes
    Instance data
    Class methods and data
Regular Expressions
  • RE syntax overview
    RE Objects
    Searching and matching
    Compilation flags
    Groups and special groups
    Replacing text
    Splitting strings
The standard library
  • The sys module
    Launching external programs
    Math functions
    Random numbers
    The string module
    Reading CSV data
Dates and times
  • Working with dates and times
    Translating timestamps
    Parsing dates from text
    Formatting dates
    Calendar data
Working with the file system
  • Paths, directories, and filenames
    Checking for existence
    Permissions and other file attributes
    Walking directory trees
    Creating filters with fileinput
    Using shutil for file operations
    17 Advanced data handling
    Defaultdict and Counter
    Prettyprinting data structures
    Compressed archives (zip, gzip, tar, etc.)
    Persistent data
Advanced data handling
  • Defaultdict and Counter
    Prettyprinting data structures
    Compressed archives (zip, gzip, tar, etc.)
    Persistent data
Network services
  • Grabbing web content
    Sending email
    Using SSH for remote access
    Using FTP
Writing real-life applications
  • Parsing command-line options
    Detecting the current platform
    Trapping signals
    Implementing logging
    Python Timeline
    Advantages/Disadvantages of Python
    Getting help with pydoc
Additional course details:

Nexus Humans Python 3 Essentials training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the Python 3 Essentials course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Training Insurance Included!

When you organise training, we understand that there is a risk that some people may fall ill, become unavailable. To mitigate the risk we include training insurance for each delegate enrolled on our public schedule, they are welcome to sit on the same Public class within 6 months at no charge, if the case arises.

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