problems with Methods in Python 3.4.2

2014-12-21 Thread Marcus Lütolf 
Hello Dears,

I solved the problem: There are two underscore key strokes required.
Marcus.

Hello Dears,

1)I am trying to do this:



 dir(_builtins_)



I am getting this:

Traceback (most recent call last):

  File pyshell#0, line 1, in module

dir(_builtins_)

NameError: name '_builtins_' is not defined



2)I am trying to do this:



 'TTA',_add_('GGA')



I’am getting this :

Traceback (most recent call last):

  File pyshell#0, line 1, in module

'TTA',_add_('GGA')

NameError: name '_add_' is not defined



3)I am trying to do this:



 -3  .abs()



I’am getting this

Traceback (most recent call last):

  File pyshell#1, line 1, in module

-3 .abs()

AttributeError: 'int' object has no attribute 'abs'



4) finally, after printing



abs._doc_()



I am getting this (and so on) :

Traceback (most recent call last):

  File pyshell#2, line 1, in module

abs._doc_()

AttributeError: 'builtin_function_or_method' object has no attribute '_doc_'

What did I do wrong ? Thanks for help, Marcus Luetolf, M.D., 90 Bondastreet,
CH-7000 Chur, Switzerland.





---
Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft.
http://www.avast.com
-- 
https://mail.python.org/mailman/listinfo/python-list

problems with Methods in Python 3.4.2

2014-12-18 Thread Marcus Lütolf 
Hello Dears,

1)I am trying to do this:



 dir(_builtins_)



I am getting this:

Traceback (most recent call last):

  File pyshell#0, line 1, in module

dir(_builtins_)

NameError: name '_builtins_' is not defined



2)I am trying to do this:



 'TTA',_add_('GGA')



I’am getting this :

Traceback (most recent call last):

  File pyshell#0, line 1, in module

'TTA',_add_('GGA')

NameError: name '_add_' is not defined



3)I am trying to do this:



 -3  .abs()



I’am getting this

Traceback (most recent call last):

  File pyshell#1, line 1, in module

-3 .abs()

AttributeError: 'int' object has no attribute 'abs'



4) finally, after printing



abs._doc_()



I am getting this (and so on) :

Traceback (most recent call last):

  File pyshell#2, line 1, in module

abs._doc_()

AttributeError: 'builtin_function_or_method' object has no attribute '_doc_'

What did I do wrong ? Thanks for help, Marcus Luetolf, M.D., 90 Bondastreet,
CH-7000 Chur, Switzerland.





---
Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft.
http://www.avast.com
-- 
https://mail.python.org/mailman/listinfo/python-list

Re: problems with Methods in Python 3.4.2

2014-12-18 Thread André Roberge 
On Thursday, 18 December 2014 13:28:33 UTC-4, Marcus Lütolf  wrote:
 Hello Dears,
 1)I am trying to do this:
  
  dir(_builtins_)
You need two underscore characters on each sides:

dir(__builtins__)

  
 I am getting this:
 Traceback (most recent call last):
   File pyshell#0, line 1, in module
 dir(_builtins_)
 NameError: name '_builtins_' is not defined
  
 2)I am trying to do this:
  
  'TTA',_add_('GGA')
Same; magic methods have two underscore characters on each side.
  
 I'am getting this :
 Traceback (most recent call last):
   File pyshell#0, line 1, in module
 'TTA',_add_('GGA')
 NameError: name '_add_' is not defined
  
 3)I am trying to do this:
  
  -3  .abs()
abs(-3)  abs is a function in Python.

See http://lucumr.pocoo.org/2011/7/9/python-and-pola/ for a good explanation...

  
 I'am getting this
 Traceback (most recent call last):
   File pyshell#1, line 1, in module
 -3 .abs()
 AttributeError: 'int' object has no attribute 'abs'
  
 4) finally, after printing
  
 abs._doc_()
  

Guess why!  ;-)

 I am getting this (and so on) :
 Traceback (most recent call last):
   File pyshell#2, line 1, in module
 abs._doc_()
 AttributeError: 'builtin_function_or_method' object has no attribute '_doc_'
 
 What did I do wrong ? Thanks for help, Marcus Luetolf, M.D., 90 Bondastreet, 
 CH-7000 Chur, Switzerland.
  
 
 
 
 
 
   
   
   
   
   
   
   
   
 
   Diese E-Mail wurde von Avast Antivirus-Software 
 auf Viren geprüft.
   
 www.avast.com
-- 
https://mail.python.org/mailman/listinfo/python-list

Re: problems with Methods in Python 3.4.2

2014-12-18 Thread Gary Herron 

On 12/18/2014 09:27 AM, Marcus Lütolf wrote:


Hello Dears,

1)I am trying to do this:

 dir(_builtins_)



It's __builtins__ not _builtins_  (double underscores at each end not 
single underscores)


I am getting this:

Traceback (most recent call last):

File pyshell#0, line 1, in module

dir(_builtins_)

NameError: name '_builtins_' is not defined

2)I am trying to do this:

 'TTA',_add_('GGA')



To call a method use . not ,.   And the method you are trying to 
call is __add__ not _add_.  But why... just do TTA+GGA


I’am getting this :

Traceback (most recent call last):

File pyshell#0, line 1, in module

'TTA',_add_('GGA')

NameError: name '_add_' is not defined

3)I am trying to do this:

 -3  .abs()



abs is a function not a method.  do: abs(-3)


I’am getting this

Traceback (most recent call last):

  File pyshell#1, line 1, in module

-3 .abs()

AttributeError: 'int' object has no attribute 'abs'

4) finally, after printing

abs._doc_()



Again, use double underscores abs.__doc__()


I am getting this (and so on) :

Traceback (most recent call last):

  File pyshell#2, line 1, in module

abs._doc_()

AttributeError: 'builtin_function_or_method' object has no attribute 
'_doc_'


What did I do wrong ? Thanks for help, Marcus Luetolf, M.D., 90 
Bondastreet, CH-7000 Chur, Switzerland.





--
Dr. Gary Herron
Department of Computer Science
DigiPen Institute of Technology
(425) 895-4418

-- 
https://mail.python.org/mailman/listinfo/python-list

Re: problems with Methods in Python 3.4.2

2014-12-18 Thread John Gordon 
In mailman.17037.1418923700.18130.python-l...@python.org 
=?iso-8859-1?Q?Marcus_L=FCtolf?= marcus.luet...@bluewin.ch writes:

  dir(_builtins_)
  'TTA',_add_('GGA')
 abs._doc_()

These errors are due to using single underscores instead of double
underscores.  I.e. use __builtins__ instead of _builtins_.

  -3  .abs()
 AttributeError: 'int' object has no attribute 'abs'

Integer objects don't have a built-in function named abs().  If you
want the absolute value of an integer, call abs directly, like so:

abs(-3)

-- 
John Gordon Imagine what it must be like for a real medical doctor to
gor...@panix.comwatch 'House', or a real serial killer to watch 'Dexter'.

-- 
https://mail.python.org/mailman/listinfo/python-list

Re: problems with Methods in Python 3.4.2

2014-12-18 Thread Terry Reedy 

On 12/18/2014 12:27 PM, Marcus Lütolf wrote:

Learn to use dir to fine valid names.


1)I am trying to do this:

  dir(_builtins_)

I am getting this:

Traceback (most recent call last):

File pyshell#0, line 1, in module

 dir(_builtins_)

NameError: name '_builtins_' is not defined


 dir()
['__builtins__', '__doc__', '__loader__', '__name__', '__package__', 
'__spec__']


shows the defined names.


2)I am trying to do this:


'TTA',_add_('GGA')


I’am getting this :

Traceback (most recent call last):

File pyshell#0, line 1, in module

 'TTA',_add_('GGA')

NameError: name '_add_' is not defined


 dir('a') shows string attribute names


3)I am trying to do this:


-3  .abs()


I’am getting this

Traceback (most recent call last):

   File pyshell#1, line 1, in module

 -3 .abs()

AttributeError: 'int' object has no attribute 'abs'


dir(3) shows int attributes


4) finally, after printing

 abs._doc_()

I am getting this (and so on) :

Traceback (most recent call last):

   File pyshell#2, line 1, in module

 abs._doc_()

AttributeError: 'builtin_function_or_method' object has no attribute '_doc_'


dir(abs) ditto


What did I do wrong ?


You did not use the interactive help already available.  help(object) 
is also very useful.


--
Terry Jan Reedy


--
https://mail.python.org/mailman/listinfo/python-list