☞ The following modes can be used to work with files.
| Text File | Binary File | CSV File | Description |
| r | rb | r |
- It is used for reading only a file.
- It is the default mode.
- If file does not exist FileNotFoundError
- File pointer is placed at the beginning of the file.
|
| w | wb | w |
- It is used for writing only into a file.
- If file does not exist, it creates a new file.
- If file exists, then overwrites it.
|
| a | ab | a |
- It is used for appending or writing into an existing file at the end.
- If file does not exist, it creates a new file.
- File pointer is at the end of the file if the file exists.
|
| r+ | rb+ | r+ |
- It is used for reading or writing both.
- File pointer will be at the beginning of the file.
|
| w+ | wb+ | w+ |
- It is used for reading or writing both.
- If file does not exist, it creates a new file.
- If file exists, then overwrites it.
- File pointer will be at the beginning of the file.
|
| a+ | ab+ | a+ |
- It is used for reading or writing both.
- File pointer will be at the end of the file.
- If file does not exist, it creates a new file.
|
