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How to Work With Tuple in Python

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Tuple in python is one of the streaming datasets. The other streaming datasets are List and Dictionary. Operations that you can perform on it are shown here for your reference. Writing tuple is easy. It has values of comma separated, and enclosed with parenthesis '()'. The values in the tuple are immutable, which means you cannot replace with new values. #1. How to create a tuple Code: my_tuple=(1,2,3,4,5) print(my_tuple) Output: (1, 2, 3, 4, 5) ** Process exited - Return Code: 0 ** Press Enter to exit terminal #2. How to read tuple values Code: print(my_tuple[0]) Output: 1 ** Process exited - Return Code: 0 ** Press Enter to exit terminal #3. How to add two tuples Code: a=(1,6,7,8) c=(3,4,5,6,7,8) d=print(a+c) Output: (1, 6, 7, 8, 3, 4, 5, 6, 7, 8) ** Process exited - Return Code: 0 ** Press Enter to exit terminal #4.  How to count tuple values Here the count is not counting values; count the repetition of a given value. Code: sample=(1, 6, 7, 8, 3, 4, 5, 6, 7, 8) print(sample
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6 Python file Methods Real Usage

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Files always have data in them. For different purposes, you need methods to deal with them. These six file methods of use in this case.


Related: 5 top file modes in python.


Python file methods

Python file methods

Below are the top six file methods in python:
  1. Tell()
  2. Seek()
  3. Flush()
  4. Fileno()
  5. truncate()
  6. isatty()

1. tell()


The usage of tell method is it returns the cursor-position of the file-pointer from the beginning of the file. It tells the current cursor position. The position starts from zero, which is same as of an index.


Syntax: 

fileobject.tell()


2. seek()


The usage of seek method is cursor position, from one position to the specified position from the beginning of the file, it moves. Here, the cursor will be sought to a particular location.

Syntax: 

fileobject.seek(position)


3. flush()


The usage of flush method is clean out the internal buffer. Before writing the text in the file, it is best practice to clear out that the internal buffer can be cleared.

Syntax: 

fileobject.flush()


4. fileno()


The usage of  fileno method is file-number i.e. a file descriptor as an integer value it returns. If an operating system does not use a file descriptor of the file then an error may occur.

Syntax: 

fileobject.fileno()


5. truncate()


The usage of truncate method is on the given number of bytes it resizes the file. The current position will be used if the size is not specified.

Syntax: 

fileobject.truncate(size)


6. isatty()

The usage of isatty method is Boolean. True if the file is connected to an end device like (tty) device else will return False.

Syntax:

fileobject.isatty()

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