28. Handling files - Part B
The chapter delves into file handling in Python, focusing on reading from and writing to files. It explains various file operations like reading lines, writing strings or lists, and flushing buffers, alongside handling characters such as newline and whitespace. Understanding these concepts is essential for effective file management in Python programming.
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Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- To write to a file, the 'write' method requires a string argument, and it returns the number of characters written.
- The 'writelines' method can write a list of strings to a file but requires attention to newline characters to avoid formatting issues.
- Closing a file using the 'close' method ensures that all buffered data is flushed to the disk.
Key Concepts
- -- File Handle
- A file handle allows interaction with files in Python, representing the connection to the file stored on the disk.
- -- Read and Write Modes
- Files can be opened in different modes, such as 'r' for read, 'w' for write, and 'a' for append, affecting how data is manipulated.
- -- Flushing Buffers
- Flushing ensures that all pending write operations are executed immediately to the disk, which can be done with the 'flush' command.
- -- String Manipulation
- Functions like 'rstrip', 'lstrip', and 'strip' can help in cleaning up strings, particularly by removing unwanted whitespace characters.
Additional Learning Materials
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