Python Tutorial ( PDFDrive )

Description
The method isatty() returns True if the file is connected (is associated with a terminal device) to a tty(-like) device,
else False.
Syntax
Following is the syntax for isatty() method:
fileObject.isatty();
Parameters
• NA
Return Value
This method returns true if the file is connected (is associated with a terminal device) to a tty(-like) device, else
false.
Example
The following example shows the usage of isatty() method.
#!/usr/bin/python
# Open a file
fo = open("foo.txt", "wb")
print "Name of the file: ", fo.name
ret = fo.isatty()
print "Return value : ", ret
# Close opened file
fo.close()
Let us compile and run the above program, this will produce the following result:
Name of the file: foo.txt
Return value : False
file.next()
Description
The method next() is used when a file is used as an iterator, typically in a loop, the next() method is called
repeatedly. This method returns the next input line, or raises StopIteration when EOF is hit.
Combining next() method with other file methods like readline() does not work right. However, usingseek() to
reposition the file to an absolute position will flush the read-ahead buffer.
Syntax
Following is the syntax for next() method:
fileObject.next();
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