Resources: Python 3 Documentation Documentation Python Lab 3 Materials
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You use the open function in Python to open a file. The open function creates a file object and associates it with a file on the disk. Here is the general format of how the open function is used:
file_variable = open(filename, mode)
As an example, suppose the file customers.txt contains customer data, and we want to open it for reading. Here is an example of how we would call the open function:
customer_file = open('customers.txt', 'r')
Suppose we want to create a file named sales.txt and write data to it. Here is an example of how we would call the open function:
sales_file = open('sales.txt', 'w')
Write a program that opens a specified text file then displays a list of all the unique words found in the file. Hint: Store each word as an element of a set.
input_file = open(input_name, 'r')
text = input_file.read()
words = text.split()