Python Libraries

Q. 1 Name the default Python attributes that are displayed with dir() funtions

Ans. _builtins_, _cached_, _doc_, _file_, _loader_, _name_, _package_, _spec_

Q.2 What is _all_ ? What is its uses?

_init_.py file in the package directory contains a list named _all_. It is a list of modules that should be imported when the statement from import* is encountered

e.g. _all_ = [, , —–]

If _all_ is defined inside a module it controls what all is imported from a module

When from import*statement is encountered

Q.3 What is the difference between absolute import and relative import?

Absolute import	Relative import
The exact location of an object in the package is defined using dot notation	The position of the object is defined relative to the current directory
From < package-name>, < subpackage-name>, < module –name>, import< object>	From ..import< subpackage-name,< modulename >

Q.4 Name the Python Library modules which need to be imported to invoke the following functions

Coil()

Randint()

Ans. math and random

Q. 5 Name the Python Library modules which need to be imported to invoke the following functions

Load()

Pow()

Ans. pickle

Math

Q. 6 Name the modules to which the following functions belong

Uniform

Fabs

Ans.random

math