Why is it that str.replace doesn't work sometimes?

[humn]

On Jun 24, 12:28 pm, unayok <una... at gmail.com> wrote:
> On Jun 24, 12:11 pm, humn <xelothat... at gmail.com> wrote:
>
> > but this doesn't:
>
> > if '\title' in line:
> >         line = line.replace('\title{', '[size=150][b]')
> >         line = line.replace('}', '[/b][/size]')
>
> \t is an escaped <tab> character. so, '\title' will look for
> '<tab>itle'
>
> Two ways to fix this:
>
> 1. use r'\title'
>
> 2. use '\\title'
>
> \c does not represent a known escape sequence so it remains two
> characters.

Thank you! Didn't know that it would escape characters with single
quotes. I thought it only did that with double quotes.