Python Language Keywords
Python try Keyword
try keyword is used in conjunction with the
keyword and often the
keyword to wrap blocks of code
that may throw an error.
Python break Keyword
Used to break out of a loop. A break statement terminates the nearest enclosing
Python class Keyword
This keyword defines a class which is a container for
attributes (variables and functions). A class can
have an initializer as well.
Python continue Keyword
To continue to the next iteration of a loop. Placing this keyword in a loop skips everything
after the continue statement in the nearest
Python def Keyword
To define a function. def Indicates that what follows is a function definition. A function is a block of statements that:
Python del Keyword
To delete an object. The del keyword deletes an object, usually something in a list.
Python elif Keyword
Used in conditional statements, same as else if. If the previous condition was not true, and
the next condition is true, execute the code in the
elif block. This is
Python else Keyword
Used in conditional statements. When all other conditions are false, the code block defined by
else keyword is executed.
Python except Keyword
Used with exceptions, what to do when an error occurs. The
except keyword is used
in conjunction with the
try keyword and often the
It lets you define a code block that handles exceptions.
Python False Keyword
A boolean value indicating "not true", which can be the result of comparison operations or can simply be assigned as a value.
Python finally Keyword
Used with try/catch blocks and marks a block of code that will be executed no matter if
an exception was thrown or not. The
finally keyword is used in conjunction with the
try keyword and
except keywords. Regardless of the exception,
the code in the
finally block will always run.
Python for-else Keywords
The code in the else block will execute if the for loop did not encounter a break.
Python assert Keyword
For debugging. This asserts that something is True.
Python from Keyword
Used importing from a module. Using
from [module name] import [object name] will import only one specific object in the Python module being imported. Importing modules makes the objects in those modules accessible to the module doing the import.
Python if Keyword
The start of a conditional statement. The code block defined by an if statement executes only if the condition is true.
Python import Keyword
Modules (usually code in sub-directories) are a way of organizing your code. The
import keyword is used to tell Python "hey, I want to use
some code in another this other module." This is particularly useful when
the module has many Python code files. Using the
import keyword, you can
then access the functions and classes defined in the imported module.
Python import as Keyword
import [module name] as [alias] will import the Python module and alias the module name.
Python in Keyword
Used to check if a value is present in a list, array etc. When used with an
statement or in an expression,
in returns True or False depending on whether a value in a collection.
Python is Keyword
The is keyword is used to determine if two variables reference the same object.
Python for Keyword
Used to create a for loop. For loops are used to iterate over a collection or range.
Python lambda Keyword
Used to create an anonymous (lambda) function
Python None Keyword
None is used to indicate "no value." There are times when you may want to explicitly say "there is no value".
Python nonlocal Keyword
nonlocal keyword is used to work with variables inside nested functions,
where the variable should not belong to the inner function.
Python not Keyword
A logical operator that returns
True if the statement is
False if the statement is
Python or Keyword
A logical operator that returns
True if either side of the "or" are
Python global Keyword
Allows the conversion of a global read-only variable into a writeable variable.
Python pass Keyword
A null statement, meaning a statement that will do nothing,
Python as Keyword
The "as" keyword is used to create an alias for an imported module.
Python and Keyword
A logical operator the returns true if both sides of the "and" are true.
Python raise Keyword
Raises an exception when a condition is true. The exception can then be caught by other code with
Python True Keyword
True is a boolean value that indicates that that a value or the result of a comparison in true.
Used to exit a function and return a value
Python while Keyword
Creates a while loop. A while continues looping over the enclosed code block until the while
condition is no longer
Python yield Keyword
Used to return a generator from a function.