Before that lets see the File Modes in Python
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File Modes in Python
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Mode
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Description
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'r' |
Open a file for reading. (by default) |
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'w' |
Open a file for writing. Creates a new file if it does not
exist or deleates the file if it exists. |
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'x' |
Open a file for exclusive creation. If the file already exists,
the operation fails. |
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'a' |
Open for appending at the end of the file without replacing it.
Creates a new file if it does not exist. |
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't' |
Open in text mode. (by default) |
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'b'
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Open in binary mode. |
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'+'
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Open a file for updating (reading and writing) |
