Questions
In C, we can find the size of an int, char, etc. I want to know how to get size of objects like a string, integer, etc. in Python.
http://stackoverflow.com/questions/135664/how-many-bytes-per-element-are-there-in-a-python-list-tuple
http://stackoverflow.com/questions/135664/how-many-bytes-per-element-are-there-in-a-python-list-tuple
I am using an XML file which contains size fields that specify the size of value. I must parse this XML and do my coding. When I want to change the value of a particular field, I will check the size field of that value. Here I want to compare whether the new value that I m gong to enter is of the same size as in XML. I need to check the size of new value. In case of a string I can say its the length. But in case of int, float, etc. I am confused.
Answers
http://docs.python.org/library/sys.html#sys.getsizeof
http://docs.python.org/library/sys.html#sys.getsizeof
sys.getsizeof(object[, default]):
Return the size of an object in bytes.
The object can be any type of object.
All built-in objects will return
correct results, but this does not
have to hold true for third-party
extensions as it is implementation
specific.
The default argument allows to define
a value which will be returned if the
object type does not provide means to
retrieve the size and would cause a
TypeError.
getsizeof calls the object’s
__sizeof__ method and adds an additional garbage collector overhead
if the object is managed by the
garbage collector.
Usage example, in python 3.0:
>>> import sys
>>> x = 2
>>> sys.getsizeof(x)
14
>>> sys.getsizeof(sys.getsizeof)
32
>>> sys.getsizeof( this )
38
>>> sys.getsizeof( this also )
48
http://code.activestate.com/recipes/546530/
http://code.activestate.com/recipes/546530/
Source
License : cc by-sa 3.0
http://stackoverflow.com/questions/449560/how-do-i-determine-the-size-of-an-object-in-python
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