File HandlingLesson 48Free preview
Python File Handling
This lesson is part of Python · All levels
Summary
File handling allows the program to read and write data to files in storage. The safest way is to open the file with open() and then use the with block that closes the file automatically, even if an error occurs. Each mode specifies different behaviors, such as "r" for reading, "w" for writing that falls, and "a" for adding at the end.
Key points
- Returns the file object; its mode is "r" (read).
- With open(...) as f: is the best way because the file is automatically closed.
- Common mode: "r" read, "w" write and paste, "a" append, "x" for new, "b" binary.
- Handle FileNotFoundError if the file you're reading is not yet available.
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