Python

PY01 - Python Basic Syntax

Complexity

Junior

Timeframe

Summary

You should understand all basic syntax features of Python.

Skill Breakdown

You should understand how to execute Python scripts and how to use the Python REPL.

You should understand the following things about variables and data types:

declaring variables
important primitive data types:
- int
- float
- bool
- str

You need to understand how to form expressions using operators and be familiar with the following operators:

assignment operator =
arithmetic operators +, -, *, /, **, %, //
comparison operators ==, !=, <, <=, >, >=
logical operators and, or, not
shorthand assignment operators +=, -=, *=, /=, **=, %=, //=
string concatenation operator +

You also need to know how to group expressions using parentheses. You should also be aware that working with floats can lead to precision problems.

You need to know how to use format strings.

You should understand the basic syntax behind arrays:

constructing arrays
accessing array elements
changing array elements
retrieving the length of an array

You should understand the following things about functions:

function definitions
function parameters
the return keyword
function calls
positional and keyword arguments

You should understand the basic syntax behind objects and classes:

creating a class
constructing objects
accessing object attributes
writing and calling object methods
__str__ and __repr__ methods
object identity
overriding object equality using __eq__

You should understand the most important iterables:

strings
arrays
dictionaries
tuples

You should understand the if statement and know about the if, elif and else keywords.

You should understand the following loops:

for loops
while loops

You should know how to raise errors using the raise statement and how to catch errors using the try...catch statement.

Required Resources

The Python Minibook:

Optional Resources

Python Tutorial:

PY02 - Python Input and Output

Complexity

Junior

Timeframe

Summary

You should know how to deal with input and output in Python.

Skill Breakdown

You should know the most important strings methods:

lower
upper
split
join
startswith
endswith

You should understand escape characters and why they are needed.

You should know how to process user input using the input function.

You should know how to work with text files:

the open function
modes: "r", "w", "a"
the read and write methods
closing files
using the with statement to simplify file processing

You should have a rough understanding of Unicode and encodings and be able to deal with encoding errors.

Required Resources

The Python Minibook:

Input and Output (opens in a new tab)

Python Tutorial:

Input and Output (opens in a new tab)

PY03 - Python Modules and Packages

Complexity

Junior

Timeframe

Summary

You should be able to work with Python modules and packages.

Skill Breakdown

You should know how to write modules and how to import module functionality:

the import statement
the from...import statement
aliasing using the as keyword

You should know a few important built-in modules:

the math module
the random module
the datetime module

You should know how to use the pip package manager to install third-party packages.

Required Resources

The Python Minibook:

Modules and Packages (opens in a new tab)

Optional Resources

Python Tutorial:

Next.js Pytorch