Page History

r

Open text file for reading

w

Truncate to zero length or create text file for writing

wx

Create text file for writing

a

Append; open or create text file for writing at end-of-file

rb

Open binary file for reading

wb

Truncate to zero length or create binary file for writing

wbx

Create binary file for writing

ab

Append; open or create binary file for writing at end-of-file

r+

Open text file for update (reading and writing)

w+

Truncate to zero length or create text file for update

w+x

Create text file for update

a+

Append; open or create text file for update, writing at end-of-file

r+b or rb+

Open binary file for update (reading and writing)

w+b or wb+

Truncate to zero length or create binary file for update

w+bx or wb+x

Create binary file for update

a+b or ab+

Append; open or create binary file for update, writing at end-of-file