The purpose of opening the file is to establish connection between file and the program. In python, there is a built-in function to open a file and this function returns a file object. Before using a file in a program, for file operations (like read, write or append etc.) it should be opened.
Syntax to open a file:
The following syntax is used to open a file:
variable_name = open("filename", "mode")
"variable_name" is the name of the variable for file object.
"open()" is a function used to open a file.
"filename" is a name of the file and it should be specified as a "string".
"mode" is used to specify the mode for performing file operations
such as read,write and append.
Examples of different operations:
The following line is used to open and write the contents into the file:
number_file = open('number_list.txt','w')
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