History of polbooks

The changes to the source code of this entry in the repository, newest first, each with the differences it made to the entry's files. They are also listed on GitLab.

2026-10-25 [entries] Fix parse bugs and improve the metadata of existing entries by Tiago de Paula Peixoto c996a0e

From a review of the dataset descriptions against the upstream sources
and papers, and from user reports:

- parse fixes (wrong edge direction or directedness, shifted or
  misnamed properties, merged node identities, duplicated or missing
  edges and nodes, wrong types), e.g. arxiv_citation (the HepTh dates
  were a copy of the HepPh ones; now from the KDD Cup 2003 data),
  eu_procurements, foursquare_global, hiv_transmission, genetic_multiplex,
  gnutella (adds the 05 snapshot), roadnet, macaque_neural, python_dependency
- descriptions rewritten from the upstream sources, documenting every
  property
- corrected titles, citations and DOIs, licences (ustream_license typo,
  the data's own terms), tags and ICON ids
- url lists for entries with several sources or dataset pages
- SocioPatterns entries moved to the site's new data location, with the
  daily networks of sp_infectious and sp_primary_school
- the Michael Fire entries marked as orphans (served from the mirror)
- redundant type forcings removed after the graph-tool coercion fixes

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 4b10cb6..414c16a 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -19,13 +19,18 @@
 from .. import *
 
 title = "Political books network (2004)"
-description = """A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished.[^icon]
-[^icon]: Description obtained from the [ICON](https://icon.colorado.edu) project."""
+description = """Network of books about U.S. politics published around the time of the 2004 U.S. presidential election and sold by the online bookseller Amazon.com, compiled by V. Krebs (unpublished). Nodes are books, and an undirected edge connects two books that are frequently purchased by the same buyers, as indicated by Amazon's "customers who bought this book also bought these other books" feature. The books were labeled by M. E. J. Newman as liberal, neutral or conservative, based on a reading of the descriptions and reviews of the books posted on Amazon.
+
+The network has the following properties:
+
+- `label`: the title of the book.
+- `value`: the political alignment of the book, with "l" = liberal, "n" = neutral, "c" = conservative."""
 tags = ['Informational', 'Relatedness', 'Unweighted', 'Metadata']
 url = 'http://www-personal.umich.edu/~mejn/netdata'
 citation = [('V. Krebs, "The political books network", unpublished', 'https://doi.org/10.2307/40124305')]
-icon_hash = '56a85c8e26855e083a2f78dd'
-ustream_license = None
+icon_hash = ['56a85c8e26855e083a2f78dd',
+             '58596710a411221d0e7c38c1']
+upstream_license = None
 upstream_prefix = 'http://www-personal.umich.edu/~mejn/netdata'
 files = [("polbooks.zip:polbooks.gml", None, 'gml')]

2026-10-24 Update copyright information by Tiago de Paula Peixoto 73a4f0d

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index a39ab98..4b10cb6 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2020-2024 Tiago de Paula Peixoto <tiago@skewed.de>
+# Copyright (C) 2020-2026 Tiago de Paula Peixoto <tiago@skewed.de>
 #
 # This program is free software: you can redistribute it and/or modify it under
 # the terms of the GNU Affero General Public License as published by the Free

2024-05-27 Update copyright information by Tiago de Paula Peixoto 3d288ea

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 9d2826f..a39ab98 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2020-2023 Tiago de Paula Peixoto <tiago@skewed.de>
+# Copyright (C) 2020-2024 Tiago de Paula Peixoto <tiago@skewed.de>
 #
 # This program is free software: you can redistribute it and/or modify it under
 # the terms of the GNU Affero General Public License as published by the Free

2023-02-19 Update copyright information by Tiago de Paula Peixoto 8d005ae

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 9dbe80d..9d2826f 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2021 Tiago de Paula Peixoto <tiago@skewed.de>
+# Copyright (C) 2020-2023 Tiago de Paula Peixoto <tiago@skewed.de>
 #
 # This program is free software: you can redistribute it and/or modify it under
 # the terms of the GNU Affero General Public License as published by the Free

2021-06-22 Update copyright info by Tiago de Paula Peixoto db2efcc

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 784734e..9dbe80d 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -1,7 +1,7 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2020 Tiago de Paula Peixoto <tiago@skewed.de>
+# Copyright (C) 2021 Tiago de Paula Peixoto <tiago@skewed.de>
 #
 # This program is free software: you can redistribute it and/or modify it under
 # the terms of the GNU Affero General Public License as published by the Free

2020-11-28 Update citations to use DOIs by Tiago de Paula Peixoto e878874

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 826212e..784734e 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -23,7 +23,7 @@ description = """A network of books about U.S. politics published close to the 2
 [^icon]: Description obtained from the [ICON](https://icon.colorado.edu) project."""
 tags = ['Informational', 'Relatedness', 'Unweighted', 'Metadata']
 url = 'http://www-personal.umich.edu/~mejn/netdata'
-citation = [('V. Krebs, unpublished, http://www.orgnet.com/', 'http://www.orgnet.com/')]
+citation = [('V. Krebs, "The political books network", unpublished', 'https://doi.org/10.2307/40124305')]
 icon_hash = '56a85c8e26855e083a2f78dd'
 ustream_license = None
 upstream_prefix = 'http://www-personal.umich.edu/~mejn/netdata'

2020-09-15 Change license from GPLv3 to AGPLv3 by Tiago de Paula Peixoto d754be5

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index ffbdd50..826212e 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -3,18 +3,18 @@
 #
 # Copyright (C) 2020 Tiago de Paula Peixoto <tiago@skewed.de>
 #
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option) any
+# later version.
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
 #
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU Affero General Public License along
+# with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from .. import *

2020-09-13 Add explicit attribution to descriptions obtained from ICON by Tiago de Paula Peixoto 1645314

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
index 61274d6..ffbdd50 100644
--- a/entries/polbooks/__init__.py
+++ b/entries/polbooks/__init__.py
@@ -19,7 +19,8 @@
 from .. import *
 
 title = "Political books network (2004)"
-description = "A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished."
+description = """A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished.[^icon]
+[^icon]: Description obtained from the [ICON](https://icon.colorado.edu) project."""
 tags = ['Informational', 'Relatedness', 'Unweighted', 'Metadata']
 url = 'http://www-personal.umich.edu/~mejn/netdata'
 citation = [('V. Krebs, unpublished, http://www.orgnet.com/', 'http://www.orgnet.com/')]

2020-08-11 Initial commit by Tiago de Paula Peixoto cc85872

diff --git a/entries/polbooks/__init__.py b/entries/polbooks/__init__.py
new file mode 100644
index 0000000..61274d6
--- /dev/null
+++ b/entries/polbooks/__init__.py
@@ -0,0 +1,49 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2020 Tiago de Paula Peixoto <tiago@skewed.de>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from .. import *
+
+title = "Political books network (2004)"
+description = "A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished."
+tags = ['Informational', 'Relatedness', 'Unweighted', 'Metadata']
+url = 'http://www-personal.umich.edu/~mejn/netdata'
+citation = [('V. Krebs, unpublished, http://www.orgnet.com/', 'http://www.orgnet.com/')]
+icon_hash = '56a85c8e26855e083a2f78dd'
+ustream_license = None
+upstream_prefix = 'http://www-personal.umich.edu/~mejn/netdata'
+files = [("polbooks.zip:polbooks.gml", None, 'gml')]
+
+def fetch_upstream(force=False):
+    return fetch_upstream_files(__name__.split(".")[-1], upstream_prefix, files,
+                                force)
+
+@cache_network()
+@coerce_props()
+@annotate()
+def parse(alts=None):
+    global files
+    name = __name__.split(".")[-1]
+    for fnames, alt, fmt in files:
+        if alts is not None and alt not in alts:
+            continue
+        if isinstance(fnames, str):
+            fnames = [fnames]
+        with ExitStack() as stack:
+            fs = [stack.enter_context(open_upstream_file(name, fn, "rb")) for fn in fnames]
+            g = parse_graph(fs, fmt, directed=False)
+        yield alt, g