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files in python

In Python, files are used to store and manipulate data. There are two types of files in Python: text files and binary files. Text files contain human-readable text and can be created, opened, read, and written using the built-in open() function. Binary files contain non-textual data, such as images or audio, and must be opened in binary mode using the open() function.

To open a file in Python, you can use the open() function and specify the file name and the mode in which you want to open the file. The mode can be “r” for reading, “w” for writing, “a” for appending, or “x” for creating a new file.

You can read from a file using the read() function, which will return the contents of the file as a string. You can also read the file line-by-line using the readline() function.

To write to a file, you can use the write() function, which will write the specified text to the file. You can also use the writelines() function to write a list of strings to the file.

After you are done working with a file, it is important to close it using the close() function to release the resources used by the file. Alternatively, you can use the with statement to open the file, which will automatically close the file when the block is exited.

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