Python: delattr() function
delattr() function
The delattr() function is used to delete the specified attribute from the specified object.
Version:
(Python 3)
Syntax:
delattr(object, name)
Parameter:
Name | Description | Required / Optional |
---|---|---|
object | The object from which name attribute is to be removed. | Required. |
name | The name of one of the object’s attributes. | Required. |
Return value:
The delattr() doesn't return any value (returns None).
Example: Python delattr() function
class Rollnums:
a = 15
b = -7
c = 0
rno = Rollnums()
print('a = ',rno.a)
print('b = ',rno.b)
print('c = ',rno.c)
delattr(Rollnums, 'c')
print('--After deleting c attribute--')
print('a = ',rno.a)
print('b = ',rno.b)
Output:
a = 15 b = -7 c = 0 --After deleting c attribute-- a = 15 b = -7
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Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
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(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
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Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
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