Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Attached The contents of input.txt file:

3. Your task is to read a file containing arithmetic instructions such as
3 + 4
4 - 10
7 * 11
Each instruction contains an integer, an operator (+, -, or *), and another integer.
Return a list of the results. If there is any error, raise an IOError.
arithmetic.py
1 ##
2 # Reads a file containing arithmetic expressions and returns a list of
3 # the results after computing each expression.
4 # @param filename the file name
5 # @return a list of results
6 #1
7
def read(filename) :
8
9
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Transcribed Image Text:3. Your task is to read a file containing arithmetic instructions such as 3 + 4 4 - 10 7 * 11 Each instruction contains an integer, an operator (+, -, or *), and another integer. Return a list of the results. If there is any error, raise an IOError. arithmetic.py 1 ## 2 # Reads a file containing arithmetic expressions and returns a list of 3 # the results after computing each expression. 4 # @param filename the file name 5 # @return a list of results 6 #1 7 def read(filename) : 8 9 CodeCheck Reset
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