YouTipPython3 File Fileno
# Python3.x Python3 File fileno() Method
[ Python3 File Methods](#)
* * *
### Overview
The **fileno()** method returns an integer file descriptor (FD integer) that can be used for low-level I/O operations by the operating system.
### Syntax
The syntax for the fileno() method is as follows:
fileObject.fileno();
### Parameters
* **None**
### Return Value
Returns the file descriptor.
### Example
The following example demonstrates the use of the fileno() method:
#!/usr/bin/python3# Open the file fo = open("tutorial.txt", "wb")print ("File name: ", fo.name) fid = fo.fileno()print ("File descriptor: ", fid)# Close the file fo.close()
The output of the above example is:
File name: tutorial.txt File descriptor: 3
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