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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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Lepl parser for Python.

Colorless Green.

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SVG experiment.

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Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

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© 2006-2013 Andrew Cooke (site) / post authors (content).

EMail and URL Validation in Python

From: andrew cooke <andrew@...>

Date: Mon, 7 Feb 2011 07:58:01 -0300

Emails and URLs are complex.  There are several RFCs (standards documents)
that describe how they should be formatted, and one (RFC 3696 that describes
how best to validate them - http://www.faqs.org/rfcs/rfc3696.html )

I wrote a validator using the Lepl Python library that checks emails and URLs.
It's very easy to use.

First, install Lepl:

  easy_install lepl

Next, use it in your Python code:

  from lepl.apps.rfc3696 import Email

  assert Email('andrew@...')
  assert not Email('not an email at all!')

As you can see, Email(...) returns true when the value is a valid email, and
false when not.

The documentation is here:
  All of Lepl: http://www.acooke.org/lepl/
  This library: http://www.acooke.org/lepl/rfc3696.html

Andrew

Email above was dropped!

From: andrew cooke <andrew@...>

Date: Mon, 7 Feb 2011 08:03:21 -0300

Ooops.  The software I use for this blog automatically deletes email addresses
to avoid spam.  So the example above that looks like

  assert Email('andrew@...')

was written with my email address (replace the ... with acooke.org).
Obviously, as written, thatwould fail!

Andrew

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