Hartmut,

Thanks!  This should nicely replace some (probably buggy) ad-hoc 
code of mine :-)

Hartmut Goebel wrote:
> * gnu/packages/web.scm (anonip): New variable.
> ---
>  gnu/packages/web.scm | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>
> diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
> index 124cc93e68..386564206e 100644
> --- a/gnu/packages/web.scm
> +++ b/gnu/packages/web.scm
> @@ -33,6 +33,7 @@
>  ;;; Copyright © 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
>  ;;; Copyright © 2019 Brendan Tildesley <mail@brendan.scot>
>  ;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
> +;;; Copyright © 2019 Hartmut Goebel 
> <h.goebel@crazy-compilers.com>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -6498,3 +6499,34 @@ update an existing mirrored site, and 
> resume interrupted downloads.
>  
>  HTTrack is fully configurable, and has an integrated help 
>  system.")
>      (license license:gpl3+)))
> +
> +(define-public anonip
> +  (package
> +    (name "anonip")
> +    (version "1.0.0")
> +    (source (origin
> +              (method url-fetch)
> +              (uri (pypi-uri "anonip" version))
> +              (sha256
> +               (base32
> + 
> "0ckn9nnfhpdnz8b92q8pkysdqj6pdh71ckfqvfj0z01cq0hzbhd2"))))
> +    (build-system python-build-system)
> +    (inputs
> +     `(("python-3" ,python-3)))

I'm surprised: the python-build-system should take care of this. 
Does the package fail without it?  How?

> +    (home-page
> +     "https://github.com/DigitaleGesellschaft/Anonip")
> +    (synopsis
> +     "Anonymize IP-addresses in log-files")

IP addresses; log files.

I'm not a fan of the way the Pypi importer needlessly indents 
home-page and synopsis (both fit on one line just fine), but it's 
up to you.

> +    (description
> +     "Anonip masks the last bits of IPv4 and IPv6 addresses in 
> log-files.

As above, so below: ‘log files’ &c.

> +That way most of the relevant information is preserved, while 
> the IP-address
> +does not match a particular individuum anymore.
> +
> +Depending on your webserver software, the log entries may 
> directly get piped

Web server.  I'd drop ‘software’ and say ‘piped directly’.

> +to Anonip or read via a FIFO (named pipe).  Thus the unmasked 
> IP addresses

‘read from’.

> +will never be written to any file.
> +
> +It's also possible to rewrite existing log files.
> +
> +Anonip can also be uses as a Python module in your own Python 
> application.")
> +    (license license:bsd-3)))

Otherwise LGTM!

T G-R