fixes KeyError raised by writers.corpora.to_documents, issue #56

MANIFEST

@@ -1,39 +1,5 @@
 # file GENERATED by distutils, do NOT edit
 setup.py
-<<<<<<< HEAD
-testsuite/__init__.py
-testsuite/analyze_tests.py
-testsuite/crossref_test.py
-testsuite/data_tests.py
-testsuite/dfr_reader_test.py
-testsuite/mallet_reader_test.py
-testsuite/networks_test.py
-testsuite/simple_graph.py
-testsuite/wos_reader_test.py
-testsuite/writers_test.py
-tethne/__init__.py
-tethne/__main__.py
-tethne/builders.py
-tethne/data.py
-tethne/workflow.py
-tethne/analyze/__init__.py
-tethne/analyze/collection.py
-tethne/analyze/graph.py
-tethne/matrices/__init__.py
-tethne/matrices/dfr.py
-tethne/networks/__init__.py
-tethne/networks/authors.py
-tethne/networks/helpers.py
-tethne/networks/papers.py
-tethne/networks/terms.py
-tethne/networks/topics.py
-tethne/readers/__init__.py
-tethne/readers/dfr.py
-tethne/readers/mallet.py
-tethne/readers/pubmed.py
-tethne/readers/wos.py
-tethne/services/__init__.py
-=======
 tethne/__init__.py
 tethne/__main__.py
 tethne/analyze/__init__.py
@@ -77,7 +43,6 @@ tethne/readers/scopus.py
 tethne/readers/wos.py
 tethne/services/__init__.py
 tethne/services/dspace.py
->>>>>>> c9995a4e3bdcee8d8bdecc731621bb27394cbcdb
 tethne/services/geocode.py
 tethne/utilities/__init__.py
 tethne/writers/__init__.py

setup.py

@@ -36,13 +36,13 @@
     version=VERSION,
     packages = PACKAGES,
     install_requires=[
-        "networkx >= 1.8.1",
-        "matplotlib >= 1.3.1",
-        "tables >= 3.1.1",
-        "Unidecode >= 0.04.16",
-        "geopy >= 0.99",
+        "networkx>=1.8.1",
+        "matplotlib>=1.3.1",
+        "tables>=3.1.1",
+        "Unidecode>=0.04.16",
+        "geopy>=0.99",
         "nltk",
-        "scipy==0.14.0",
-        "numpy==1.8.1",
+        "scipy>=0.14.0",
+        "numpy>=1.8.1",
     ],
 )

tethne/writers/corpora.py

@@ -56,7 +56,11 @@ def word(s):
             # Write metadata.
             meta = [ str(p) ]
             if metadata is not None:
-                meta += [ str(metadict[p][f]) for f in metakeys ]
+                if p in metadict:
+                    for f in metakeys:
+                        if f in metadict[p]:    meta.append(str(metadict[p][f]))
+                        else:                   meta.append('')
+
                 metaFile.write('\t'.join(meta) + '\n')
 
     except AttributeError:  # .iteritems() raises an AttributeError if ngrams