KwickClips Python · 44 sec · free
Why does a .dat file look like junk in Notepad?
Short answer. It stores raw bytes, not readable characters.
What can a binary file hold that a text file cannot?
Any Python object, such as a list.
Text vs binary
| Point | Text | Binary |
|---|---|---|
| Stores | characters | bytes |
| Readable? | yes | no |
| Holds | strings | any object |
Remember
| Binary modes: rb, wb, ab |
| Use pickle for objects |
You open a dat file in Notepad. Why is it junk? It is a binary file. Text stores characters, binary stores bytes. Only text is readable. Binary holds objects. Remember two things. Binary modes add the letter b. Use pickle for objects.
This clip is from the full lesson: Binary Files and the pickle Module — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083), CBSE Class 12 Computer Science (083)
More KwickClips from this lesson
What is the argument order for dump?38 sec
Which mode adds a record without erasing?44 sec
Why use while True to read records?41 secDisclaimer. KwickAcademy is free study material for general learning and revision. Parts of it, including the voice-over, are produced with the help of AI tools and may contain errors; if you spot one, please tell us and we will correct it. Syllabus, marks and exam details follow the latest official board publications available to us, and boards can change them at any time, so always confirm against your board's official website and your school. Using this material does not guarantee any marks or result. Board names and trademarks belong to their owners; Kwickprep is not affiliated with or endorsed by any examination board. We never ask for passwords, OTPs or ID numbers. Your progress is saved only in this browser. Full disclaimer · Privacy