Python Statements

In Python programming, statements play a pivotal role. They are essentially fragments of code that execute specific operations or commands. There are a variety of statements, some of which are simple, and others are compound.

Simple and Compound statements

A simple statement, or 'simple instruction' in Python, is identified by a keyword.

Consider this - assigning a value to a variable is as simple as it gets. Here's an example:

number = 10

Compound statements, conversely, are somewhat more complex. They consist of blocks of code demarcated by the colon symbol ":" which signals the beginning of a code block.

For instance, a 'for' loop encapsulates the concept of a compound instruction, as it requires a block of code:

1. for numbers in range(1, 10):
2. print(numbers)

Types of Statements in Python

Python showcases an array of statements types, including:

• Assignment statements
  These allocate a value to a variable. Here's a simple illustration x = 5. This statement bestows the value 5 onto the variable x.

  x = 5

• Conditional statements
  These allow specific sections of code to be executed when certain conditions are fulfilled. An 'if' statement is a classic example of a conditional instruction.
  

  if x > 0:
  print("x is positive")

• Loop statements
  These facilitate the repeated execution of a code block. 'For' and 'while' loops fall under this category.
  

  for i in range(5):
  print(i)

• Flow control statements
  These govern the progression or 'flow' of a program, facilitating transitions between different code blocks. 'Break', 'continue', and 'pass' exemplify this type of instruction.

  for i in range(10):
  if (i==5): break
  print(i)

• Function statements
  These define a function. For instance:
  

  def say(name):
  print("Hello, " + name + "!")

• Import statements
  These enable the import of modules or functions from other files or modules. For example, importing the math module is as simple as writing - import math.
  

  import math

• Return statements
  The 'return' statement concludes the execution of a function and delivers a value.
  

  def addnumbers(a, b):
  return a + b

The 'return' statement concludes the execution of a function and delivers a value.

List of Python statements

Finally, let's look at a list of Python statements:

• assert
  The assert statement raises an exception if the expression you have specified is false.
• del
  This statement deletes the reference of an object in memory.
• for
  This compound statement creates a loop to perform a certain number of iterations.
• from
  The keyword 'from' allows you to import only certain functions or classes from a module.
• if
  It's a compound statement that allows you to execute a part of the code only if a particular condition occurs. In other words, it is a conditional structure.
• import
  This instruction loads into memory the functions and classes of an external module.
• pass
  The 'pass' statement functions as a placeholder, quite handy when you're in the process of structuring your code.
• return
  The return keyword terminates a function or method and optionally returns a return value to the calling code.
• try except
  This compound statement allows you to catch and handle exceptions that may be raised during the execution of a block of code.
• with
  The 'with' statement enables you to execute a block of code while ensuring that any opened resources are automatically closed at the end. This is especially useful for managing files, databases, and network connections efficiently.