Question about quoting style.

[Bruno Desthuilliers]

Steven W. Orr a écrit :
> Python has a number of "quoting" 'options' to help """with
> times when""" one way may be more convenient than another.
> 
> In the world of shell scripting, I use a technique that I call minimal 
> quoting. It works like this:
> 
> foo=bar            # No quotes needed
> echo $foo        # Also none needed
> baz='Hello there'    # Don't use double quotes. No iterpolation.
> qaz="$baz $foo and grill" # Interpolation needs double quotes.
> 
> Is there some sort of best practices approach for when different types 
> of quoting should be employed?

First point is that Python has no "variable interpolation". Second point 
is in Python, quoting style makes no difference wrt escape sequences 
(\n, \t etc). Third point is that quoting is not optional when it comes 
to string literals - but I guess you knew this one already !-)

Where it makes a difference is that "triple-quoted" string literals 
preserves newlines (ok, I guess you knew this too)

IOW, it's mostly a matter of commodity: use double quotes when you don't 
want to bother escaping sngle quotes, and vice-versa. As far as I'm 
concerned, and since it's quite more common to have a single quote than 
a double one in a string literal, I tend to use double-quoted strings by 
default. But YMMV !-)