Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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How to code this assignment JSON objects.
Hint: Work on the methods in the order they are found in the documentation below.
def read_last_line(file_path: str)->str:
"""
Reads the last line of the file at the specified file path. The function returns the last line of the file as a
string, if the file is empty it will return an empty string ("").
:param file_path: A path to a file
:return: The last line of the file
"""
def read(file_path: str)->str:
"""
Reads the entire file at the specified file path. The function returns all the text in the file as a string, if
the file is empty it will return an empty string ("").
:param file_path: A path to a file
:return: All the text in the file
"""
def write(file_path:str, text:str=''):
"""
Clears the file at the specified file path then writes the specified line to the file. If the function is invoked
without a line parameter or the line variable is None nothing is written to the file but the file should still be
cleared. If the file does not exist a new file is created, regardless if a text is specified.
:param file_path: A path to a file
:param line: None
:return:
"""
def write_last_line(file_path:str, text:str=''):
"""
Writes the specified line to the file as the last line. If the text parameter does not start with a new line
character this adds a new line character to the text parameter so that the text is written on the next line of
the file. If the function is invoked without a line parameter or the line variable is None nothing is written to
the file. If the file does not exist a new file is created, regardless if a text is specified.
:param file_path: A path to a file
:param text: The last line to be written to the file.
:return: None
"""
def clear(file_path: str):
"""
Clears the file at the specified file path.
:param file_path: A path to a file
:return: None
"""
def delete_last_line(file_path: str) -> str:
"""
Removes the last line in the file at the specified file path. Then it saves the new value with the last line
removed to the file. Finally it returns the deleted last line. If the file has nothing in it an empty
string ("") is returned.
:param file_path: A path to file
:return: The text in the file with the last line removed
"""
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