Deprecation in String.joinfields()

[Anoop]

Hi All,

I am getting the following error while trying to use deprecation

Please help

>>li = ["a", "b", "mpilgrim", "z", "example"]
newname = string.joinfields (li[:-1], ".")
newname

'a.b.mpilgrim.z'

>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'joinfields'

>>newname1 = string.join (li[:-1], ".")
newname1

'a.b.mpilgrim.z'

>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'join'

Thank you for your help

Anoop

[John Machin]

Anoop wrote:

Hi All,

I am getting the following error while trying to use deprecation

Please help

>li = ["a", "b", "mpilgrim", "z", "example"]
newname = string.joinfields (li[:-1], ".")
newname

'a.b.mpilgrim.z'

>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'joinfields'

>newname1 = string.join (li[:-1], ".")
newname1

'a.b.mpilgrim.z'

>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'join'

Hi Anoop, and welcome to Python.
1. Pretend the string module doesn't exist. "Deprecated" means
"outdated; *don't* use it".
2. Instead use methods of string objects (more precisely, str objects
and unicode objects, which have mostly the same methods).

In this case

| >>'.'.join(li)
| 'a.b.mpilgrim.z.example'

Yes, I know it looks strange -- FAQ: why not li.join('.') -- but that's
the way it is.

What tutorial or textbook are you using that led you down the
string-module path?

Cheers,
John

[Fredrik Lundh]

"Anoop" wrote:

I am getting the following error while trying to use deprecation

deprecation ?

>>>li = ["a", "b", "mpilgrim", "z", "example"]
newname = string.joinfields (li[:-1], ".")
newname

'a.b.mpilgrim.z'

>>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'joinfields'

you're trying to call the "joinfields" method on a list object. lists don't have
such a method. to join strings in a list using a separator, use

separator.join(list)

or in your case,

newname = ".".join(li[:-1])

older code sometimes use the "join" function from the "string" module in-
stead:

import string
newname = string.join(li[:-1], separator)

string.joinfields is a really old spelling of string.join. that's been deprecated
for a decade, or so.

</F>

[Benjamin Niemann]

Hello,

Anoop wrote:

I am getting the following error while trying to use deprecation

Please help

>>>li = ["a", "b", "mpilgrim", "z", "example"]
newname = string.joinfields (li[:-1], ".")
newname

'a.b.mpilgrim.z'

>>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'joinfields'

>>>newname1 = string.join (li[:-1], ".")
newname1

'a.b.mpilgrim.z'

>>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'join'

Thank you for your help

joinfields is just an alias for join and only the latter is a method of the
string class (which should be used instead of the deprecated string.join
function), which means that the string "." has a method join which takes
the list as an argument.

So what you want should be written as:

newname = ".".join(li[:-1])
HTH

--
Benjamin Niemann
Email: pink at odahoda dot de
WWW: http://pink.odahoda.de/

[Larry Bates]

Anoop wrote:

Hi All,

I am getting the following error while trying to use deprecation

Please help

>>>li = ["a", "b", "mpilgrim", "z", "example"]
newname = string.joinfields (li[:-1], ".")
newname

'a.b.mpilgrim.z'

>>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'joinfields'

>>>newname1 = string.join (li[:-1], ".")
newname1

'a.b.mpilgrim.z'

>>>newname = li[:-1].joinfields(".")

Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: 'list' object has no attribute 'join'

Thank you for your help

Anoop

I think you want:

newname1='.'.join(li[:-1])

-Larry Bates