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Project Description

Mailgun library to extract message quotations and signatures.

If you ever tried to parse message quotations or signatures you know that absence of any formatting standards in this area could make this task a nightmare. Hopefully this library will make your life much easier. The name of the project is inspired by TALON - multipurpose robot designed to perform missions ranging from reconnaissance to combat and operate in a number of hostile environments. That’s what a good quotations and signature parser should be like :smile:

Usage

Here’s how you initialize the library and extract a reply from a text message:

import talon
from talon import quotations

talon.init()

text =  """Reply

-----Original Message-----

Quote"""

reply = quotations.extract_from(text, 'text/plain')
reply = quotations.extract_from_plain(text)
# reply == "Reply"

To extract a reply from html:

html = """Reply
<blockquote>

  <div>
    On 11-Apr-2011, at 6:54 PM, Bob &lt;bob@example.com&gt; wrote:
  </div>

  <div>
    Quote
  </div>

</blockquote>"""

reply = quotations.extract_from(html, 'text/html')
reply = quotations.extract_from_html(html)
# reply == "<html><body><p>Reply</p></body></html>"

Often the best way is the easiest one. Here’s how you can extract signature from email message without any machine learning fancy stuff:

from talon.signature.bruteforce import extract_signature


message = """Wow. Awesome!
--
Bob Smith"""

text, signature = extract_signature(message)
# text == "Wow. Awesome!"
# signature == "--\nBob Smith"

Quick and works like a charm 90% of the time. For other 10% you can use the power of machine learning algorithms:

import talon
# don't forget to init the library first
# it loads machine learning classifiers
talon.init()

from talon import signature


message = """Thanks Sasha, I can't go any higher and is why I limited it to the
homepage.

John Doe
via mobile"""

text, signature = signature.extract(message, sender='john.doe@example.com')
# text == "Thanks Sasha, I can't go any higher and is why I limited it to the\nhomepage."
# signature == "John Doe\nvia mobile"

For machine learning talon currently uses the scikit-learn library to build SVM classifiers. The core of machine learning algorithm lays in talon.signature.learning package. It defines a set of features to apply to a message (featurespace.py), how data sets are built (dataset.py), classifier’s interface (classifier.py).

Currently the data used for training is taken from our personal email conversations and from ENRON dataset. As a result of applying our set of features to the dataset we provide files classifier and train.data that don’t have any personal information but could be used to load trained classifier. Those files should be regenerated every time the feature/data set is changed.

To regenerate the model files, you can run

python train.py

or

from talon.signature import EXTRACTOR_FILENAME, EXTRACTOR_DATA
from talon.signature.learning.classifier import train, init
train(init(), EXTRACTOR_DATA, EXTRACTOR_FILENAME)

Open-source Dataset

Recently we started a forge project to create an open-source, annotated dataset of raw emails. In the project we used a subset of ENRON data, cleansed of private, health and financial information by EDRM. At the moment over 190 emails are annotated. Any contribution and collaboration on the project are welcome. Once the dataset is ready we plan to start using it for talon.

Release History

Release History

1.3.3

This version

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1.3.2

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1.3.1

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1.3.0

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1.2.16

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1.2.15

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1.2.14

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1.2.12

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1.2.11

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1.2.10

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1.2.9

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1.2.8

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1.2.7

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1.2.6

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1.2.5

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1.2.4

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1.2.3

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1.2.2

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1.2.1

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1.2.0

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1.1.0

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1.0.9

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1.0.8

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1.0.7

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1.0.6

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1.0.5

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1.0.4

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1.0.3

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1.0.2

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1.0.1

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1.0

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0.0.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
talon-1.3.3.tar.gz (60.6 kB) Copy SHA256 Checksum SHA256 Source Dec 1, 2016

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