trouble using \ to escape %

[Lucas Machado]

I'm writing a python script that modifies the smb.conf file, and i need
to write the characters '%U' in the file. I tried making a string like
so:

str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%U" % (list[0], list[1],
list[0], list[1])

but i keep getting: "TypeError: not enough arguments for format
string". I've also tried making the string:

str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%" % (list[0], list[1],
list[0], list[1])

but i get: "ValueError : incomplete format". These errors lead me to
believe that for some reason it is not escaping the '%' character.
There has to be a way to write '%' to a file. Thanks in advance..

Cheers
-Lucas Machado

[Rob Williscroft]

Re: trouble using \ to escape %

Lucas Machado wrote in news:1113606334 .524947.54630
@l41g2000cwc.go oglegroups.com in comp.lang.pytho n:
[color=blue]
> str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%U" % (list[0], list[1],
> list[0], list[1])
>[/color]

In a format string use '%%' for a single % char':

str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/%%U" % (list[0], list[1],list[0],
list[1])


Rob.
--

http://www.victim-prime.dsl.pipex.com/

[Maarten Sneep]

Re: trouble using \ to escape %

In article <1113606334.524 947.54630@l41g2 000cwc.googlegr oups.com>,
"Lucas Machado" <LMachado1@gmai l.com> wrote:
[color=blue]
> I'm writing a python script that modifies the smb.conf file, and i need
> to write the characters '%U' in the file.[/color]

print "%s = %%U" % "a" yields a = %U for me.

Maarten

[Dan Bishop]

Re: trouble using \ to escape %

Lucas Machado wrote:[color=blue]
> I'm writing a python script that modifies the smb.conf file, and i[/color]
need[color=blue]
> to write the characters '%U' in the file. I tried making a string[/color]
like[color=blue]
> so:
>
> str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%U" % (list[0], list[1],
> list[0], list[1])
>
> but i keep getting: "TypeError: not enough arguments for format
> string". I've also tried making the string:
>
> str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%" % (list[0], list[1],
> list[0], list[1])
>
> but i get: "ValueError : incomplete format". These errors lead me to
> believe that for some reason it is not escaping the '%' character.
> There has to be a way to write '%' to a file. Thanks in advance..[/color]
[color=blue][color=green][color=darkred]
>>> percentage = 93
>>> # The string % operator uses "%%" for the percent sign.
>>> format_string = "%d%% of all statistics are made up on the spot."
>>> print format_string % percentage[/color][/color][/color]
93% of all statistics are made up on the spot.[color=blue][color=green][color=darkred]
>>> # When the % operator is not used, "%" is just another character.
>>> print format_string[/color][/color][/color]
%d%% of all statistics are made up on the spot.[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]

[John Machin]

Re: trouble using \ to escape %

On 15 Apr 2005 16:05:34 -0700, "Lucas Machado" <LMachado1@gmai l.com>
wrote:
[color=blue]
>I'm writing a python script that modifies the smb.conf file, and i need
>to write the characters '%U' in the file. I tried making a string like
>so:
>
>str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%U" % (list[0], list[1],
>list[0], list[1])
>
>but i keep getting: "TypeError: not enough arguments for format
>string". I've also tried making the string:
>
>str1 = "[%s%s]\n\tpath = /mnt/samba/%s%s/\%" % (list[0], list[1],
>list[0], list[1])
>
>but i get: "ValueError : incomplete format". These errors lead me to
>believe that for some reason it is not escaping the '%' character.
>There has to be a way to write '%' to a file. Thanks in advance..[/color]

Looks like you've already got your answer, but here's some META-help:
what to do when you have a problem and your internet connection is
broken:

1. GUESS. Extrapolation from examples like DLE DLE in networking, $$
in m4 and \\ in *almost* everything might suggest trying %%

2. READ THE DOCS. Don't know what platform you're running on, but one
of what a recent blogger called "hopeless Windows people" [like me]
would do is this:

Start->Programs->Python 2.4->Python manuals, click on the Index tab,
type %, hit Enter ... scrolling down leads to a table of conversion
types, the last of which is the somewhat tautological """% No argument
is converted, results in a "%" character in the result."""

HTH,
John