pythonian way

[Fredrik Lundh]

Milos Prudek <prudek at nembv.cz> wrote:
> The following excerpt works. It reads lines from config file. But I
> would like to ask if it is 'right' in the Pythonian way. Since I'm just
> beginning in Python I do not want to twist Python into 'my' way of
> thinking.
>
> There is no eof() function for high level readline(), so I use '' to
> discover end of file.
>
> A=[]
> Line=H.readline()
> while Line<>'':
>    if Line<>'' and Line<>'\n':
>    A.append(Line)
>    Line=H.readline()

if all you want is to load all lines from the file
into a list, use:

    A = H.readlines()

the standard pydiom for reading from a text file
is this:

    while 1:
        s = fp.readline()
        if not s:
            break
        # do something to s

(it's used everywhere, so you better get used
to it! "while 1" should be read as "forever")

also see the "fileinput" module.

</F>