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Python Python Basics (2015) Python Data Types Del

gordon kilgore
gordon kilgore
128 Points
Posted by gordon kilgore
gordon kilgore
128 Points

i am lost! "Bummer!" ? delete the `planned` variable with the `del` keyword, yes

i am lost! "Bummer!" ? delete the planned variable with the del keyword, yes

delete.py 
current_count = 14
planned = 5
upcoming_releases = del
don't delete the line
del favorate number
del (favorate_number)

del favorate_number 
no
del favorate_fruit
del (favorate_fruit)
del favorate_fruit
Yamil Pérez
Yamil Pérez
Courses Plus Student 2,054 Points

The challenge is asking to delete the variable planned using del. so, you just need to do this del planned.

1 Answer

Jeffrey James
Jeffrey James
2,636 Points
Jeffrey James
Jeffrey James
2,636 Points

You can call "del variable" on any variable. Look at it with a clear head. Here's an example. Sometimes, rather than deleting something, you may also set it equal to None. However, None still has a space in memory and contains properties. The dir(some_variable) method exposes properties and methods of a variable, if you're not 100% clear on what it does. 

In [6]: planned = 'the event we have'

In [7]: print(planned)
the event we have

In [8]: del planned

In [9]: print(planned)
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-9-ff12f57317d2> in <module>()
----> 1 print(planned)

NameError: name 'planned' is not defined

In [10]: planned = 'the event we have'

In [11]: planned = None

In [12]: print(planned)
None

In [13]: dir(planned)
Out[14]: 
['__bool__',
 '__class__',
 '__delattr__',
 '__dir__',
 '__doc__',
 '__eq__',
 '__format__',
 '__ge__',
 '__getattribute__',
 '__gt__',
 '__hash__',
 '__init__',
 '__le__',
 '__lt__',
 '__ne__',
 '__new__',
 '__reduce__',
 '__reduce_ex__',
 '__repr__',
 '__setattr__',
 '__sizeof__',
 '__str__',
 '__subclasshook__']