Python tuple methods

Tuple in python

"""tuples in python:
the lists are mutable, Python needs to allocate an extra memory block 
in case there is a need to extend the size of the list object after it is created. 
In contrary, as tuples are immutable and fixed size, Python allocates 
just the minimum memory block required for the data.
As a result, tuples are more memory efficient than the lists."""
import sys, platform, time
a_list = list()
a_tuple = tuple()
a_list = [1,2,3,4,5]
a_tuple = (1,2,3,4,5)
print(sys.getsizeof(a_list))
print(sys.getsizeof(a_tuple))
start_time = time.time()
b_list = list(range(10000000))
end_time = time.time()
print("Instantiation time for LIST:", end_time - start_time)
start_time = time.time()
b_tuple = tuple(range(10000000))
end_time = time.time()
print("Instantiation time for TUPLE:", end_time - start_time)
start_time = time.time()
for item in b_list:
  aa = b_list[20000]
end_time = time.time()
print("Lookup time for LIST: ", end_time - start_time)
start_time = time.time()
for item in b_tuple:
  aa = b_tuple[20000]
end_time = time.time()
print("Lookup time for TUPLE: ", end_time - start_time)

"""As you can see from the output of the above code snippet, 
the memory required for the identical list and tuple objects is different.
When it comes to the time efficiency, again tuples have a slight advantage 
over the lists especially when lookup to a value is considered."""

"""When to use Tuples over Lists:
Well, obviously this depends on your needs.
There may be some occasions you specifically do not what data to be changed. 
If you have data which is not meant to be changed in the first place, 
you should choose tuple data type over lists.
But if you know that the data will grow and shrink during the runtime of the application, 
you need to go with the list data type."""

Tuplein python

a=(1,2,3,4)
print(a[-3])

Tuple python

Tuple in pyhton

Tuple python

tuple = ("Facebook", "Instagram", "TikTok", "Twitter")

Source: openclassrooms.com

Python tuple

tupel = ("bat","cat","mat","apple","orange")

#you cannot change tupel

print("tupel")

Python tuple methods

count(x) : Returns the number of times 'x' occurs in a tuple
index(x) : Searches the tuple for 'x' and returns the position of where it was first found

Similar codes

9 votes218 views6 answers
Join pandas dataframe by column
Python
0 vote227 views4 answers
How to convert array of arrays into single array with unique values in numpy
Python
1 vote206 views1 answer
Cmd run ps1 file in background
Python
0 vote220 views1 answer
Remove first 2 rows in pandas
Python
1 vote280 views2 answers
Turn off colorbar seaborn heatmap
Python
0 vote267 views1 answer
Pandas series remove punctuation
Python
17 votes227 views2 answers
How to use headless browser in selenium python
Python
3 votes228 views2 answers
Catch error python
Python
0 vote221 views1 answer
Float value in regression expression python
Python
8 votes256 views4 answers
Count unique values numpy
Python