Consider the following classes, FileExtensionError and AudioFile:

In [7]:

class FileExtensionError( Exception ):

 pass

class AudioFile:

 """

 A class for representing a generic audio file

 """

 def __init__( self, filepath ):

 if not filepath.endswith( self.extension ):

 raise FileExtensionError( "File {filepath} does not have the expected extension ({self.extension})" )

 self.filepath = filepath

Now define the following classes as subclasses of AudioFile:

WAV_File

AIFF_File

FLAC_File

OGG_File

MP3_File

where each subclass defines a class variable named extension that specifies the expected file extension for the particular audio file that subclass represents and a play( self ) method that pretends to play the audio content in the specified file path. Just like the textbook example, all you need to do is to print out a message that informs the user that the particular file is being played.

WRITE YOUR CODE BELOW

In [6]:

#

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# YOUR CODE GOES HERE

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Create different numbers of files from each of the above file formats, and add these to a list. You can use the random module to randomize how many of each audio types you wish to create.

Run a for-loop to play each audio file

WRITE YOUR CODE BELOW

In [6]:

#

#

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# YOUR CODE GOES HERE

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QUESTION 2

Following the specifications in Question 1 above, create three (3) new audio file format classes with the following names:

WMA_File

PCM_File

AAC_File

WRITE YOUR CODE BELOW

In [6]:

#

#

#

# YOUR CODE GOES HERE

#

#

#

Create different numbers of files from each of the above file formats, and add these to a list. You can use the random module to randomize how many of each audio types you wish to create.

Run a for-loop to play each audio file