Improve Article
Improve
Save Article
Save
In python, the usage of sys.getsizeof() can be done to find the storage size of a particular object that occupies some space in the memory. This function returns the size of the object in bytes. It takes at most two arguments i.e Object itself.
Note: Only the memory consumption directly attributed to the object is accounted for, not the memory consumption of objects it refers to.
Examples:
Input:
# Any Integer Value
sys.getsizeof(4)Expected Output: 4 bytes (Size of integer is 4bytes)
Actual Output: 28 bytes
Here’s how we can interpret the actual output. Have a look at the table below:
Type of Object | Actual Size | Notes |
|---|---|---|
int | 28 | NA |
str | 49 | +1 per additional character (49+total length of characters) |
tuple | 40 (Empty Tuple) | +8 per additional item in a tuple ( 40 + 8*total length of items ) |
list | 56 (Empty List) | +8 per additional item in a list ( 56 + 8*total length of items ) |
set | 216 | 0-4 take the size of 216. 5-19 take size 728. 20th will take 2264 and so on… |
dict | 232 | 0-5 takes a size of 232. 6-10 size will be 360. 11th will take 640 and so on… |
func def | 136 | No attributes and default arguments |
Example:
Python3
import sys
# Getting size using getsizeof() method and lately
# printing the same.
a = sys.getsizeof(12)
print(a)
b = sys.getsizeof('geeks')
print(b)
c = sys.getsizeof(('g', 'e', 'e', 'k', 's'))
print(c)
d = sys.getsizeof(['g', 'e', 'e', 'k', 's'])
print(d)
e = sys.getsizeof({1, 2, 3, 4})
print(e)
f = sys.getsizeof({1: 'a', 2: 'b', 3: 'c', 4: 'd'})
print(f)
Output:
Last Updated :17 Jul, 2023
Like Article
Save Article
FAQs
How to find size of an object in Python? - GeeksforGeeks? ›
In python, the usage of sys. getsizeof() can be done to find the storage size of a particular object that occupies some space in the memory. This function returns the size of the object in bytes.
How do you use __ Sizeof __ in Python? ›Using __sizeof__() function
The __sizeof__() function returns the size of the object without any overhead for garbage collection. For an empty list, it returns a size of 40 bytes and for each additional element of the list, it adds 8 bytes to the size.
Getting the length of a bytes object in Python is easy using the len() function. It is a simple and straightforward way to obtain the size of a bytes object.
What is the size function in Python? ›size() function count the number of elements along a given axis. Parameters: arr: [array_like] Input data. Returns: [int] Return the number of elements along a given axis.
How do you check the size of a list in Python? ›Using the len() method to get the length of a list. You can use the built-in len() method to find the length of a list. The len() method accepts a sequence or a collection as an argument and returns the number of elements present in the sequence or collection.
How do you check the dimension of an object in Python? ›Use of Python shape() method
With the shape() method, comes the flexibility to obtain the dimensions of any Python object. Yes, it returns a tuple value that indicates the dimensions of a Python object.
The sizeof() operator allows a user to avoid the specification of the machine-dependent type of data sizes in any program. We generally use the sizeof() operator in the C language so that we can determine the total size of the data type or the expression that is specified in the storage units of char-size.
What is byte size in Python? ›One byte is a memory location with a size of 8 bits. A bytes object is an immutable sequence of bytes, conceptually similar to a string.
How do you calculate byte size? ›1 byte = 8 bits = 28 = 256 values
A byte could look as follows: 00111001. If you imagine the bit as a binary letter, then a byte is the smallest possible word. It takes 1 byte to represent an actual letter or number.
- Python2 str objects are bytes though: str is bytes -> True in Python2. – snakecharmerb. ...
- Obviously, hence the detection problem! :) ...
- This looks 100x cleaner, but does exactly the same: if "bytes" in type(data).__name__: print("It's <bytes>") ...
- This is even shorter: if not type(data) == str: print("It's bytes")
How do you find the size of a list object? ›
Get the length/size of the list using the len() function (The number of items in an object is returned by the len() method. The len() function returns the number of items in a list when the object is a list) and create a variable to store it.
How do you check the byte size of a list in Python? ›While the len() function is used to determine the number of elements in a list, Python also provides the getsizeof() function if you want to understand the memory consumption of a list. This function is part of the sys module and returns the memory size in bytes. This will output the size of my_list in bytes.
How do you find the size of text in Python? ›To calculate the length of a string in Python, you can use the built-in len() method. It takes a string as a parameter and returns an integer as the length of that string. For example, len(“educative”) will return 9 because there are 9 characters in “educative”.
How do you use the resize function in Python? ›To resize an image, you call the resize() method on it, passing in a two-integer tuple argument representing the width and height of the resized image. The function doesn't modify the used image; it instead returns another Image with the new dimensions.
How do you declare size in Python? ›Method 1: Using len() function
Get the length/size of the list using the len() function (The number of items in an object is returned by the len() method. The len() function returns the number of items in a list when the object is a list) and create a variable to store it. Print the length/size of a list.
To calculate the length of a string in Python, you can use the built-in len() method. It takes a string as a parameter and returns an integer as the length of that string. For example, len(“educative”) will return 9 because there are 9 characters in “educative”.
How do you get the memory size of a string in Python? ›Python3. Method #2 : Using sys. getsizeof() This task can also be performed by one of the system calls, offered by Python as in sys function library, the getsizeof function can get us the size in bytes of desired string.