How can I use isinstance
to determine the 'type' of a file object, such as in the expression:
>>> open(file)
These are for use with isinstance
.
In Python 3.x, normal file objects are of type io.TextIOWrapper
:
>>> type(open('file.txt'))
<class '_io.TextIOWrapper'>
>>> from io import TextIOWrapper
>>> isinstance(open('file.txt'), TextIOWrapper)
True
In Python 2.x, all file objects are of type file
:
>>> type(open('file.txt'))
<type 'file'>
>>> isinstance(open('file.txt'), file)
True