Reserved Keywords In Python Programming

aimtocode

Keywords Definition

Keywords are pre-defined words in a Python compiler.

Each keyword is meant to perform some specific function in a Python program.

Since keywords are referred as a name for compiler, they can’t be used as variable name because it has standard predefined specific meaning.

Since Python is case sensitive, Keywords should be written in lower case.

The meaning and working of these keywords are already known to the compiler and therefore, it can not be changed or modified.

List of Keywords in Python

TrueFalseNoneandas
assetdefclasscontinuebreak
elsefinallyelifdelexcept
globalforiffromimport
raisetryorreturnpass
nonlocalinnotislambda


Keywords are Explained

print print to console

while controlling the flow of the program

for iterate over items of a collection in order that they appear

break interrupt the (loop) cycle, if needed

continue used to interrupt the current cycle, without jumping out of the whole cycle. New cycle will begin.

if used to determine, which statements are going to be executed.

elif stands for else if.If the first test evaluates to False, then it continues with the next one

else is optional. The statement after the else keyword is executed, unless the condition is True

is tests for object identity

not negates a boolean value

and all conditions in a boolean expression must be met

or at least one condition must be met.

import import other modules into a Python script

as if we want to give a module a different alias

from for importing a specific variable, class or a function from a module

def used to create a new user defined function

return exits the function and returns a value

lambda creates a new anonymous function

global access variables defined outside functions

try specifies exception handlers

except catches the exception and executes codes

finally is always executed in the end. Used to clean up resources.

raise create a user defined exception

del deletes objects

pass does nothing

assert used for debugging purposes

class used to create new user defined objects

exec executes Python code dynamically

yield is used with generators

aimtocode