Code format using black, update part of example data, test script in …

…README

.travis.yml

@@ -1,9 +1,9 @@
 language: python
 env:
-    - PYTHON=3.5
-    - PYTHON=3.6
-    - PYTHON=3.7
-    - PYTHON=3.8
+  - PYTHON=3.5
+  - PYTHON=3.6
+  - PYTHON=3.7
+  - PYTHON=3.8
 
 miniconda:
   - wget -q http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh
@@ -22,4 +22,4 @@ script:
   - py.test --cov=pubmed_parser tests/ --verbose
 
 after_success:
-    - bash <(curl -s https://codecov.io/bash)
+  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -232,6 +232,8 @@ git clone https://github.com/titipata/pubmed_parser
 pip install ./pubmed_parser
 ```
 
+You can test your installation by running `py.test --cov=pubmed_parser tests/ --verbose`
+
 ## Example snippet to parse PubMed OA dataset
 
 An example usage is shown as follows

pubmed_parser/__init__.py

@@ -3,16 +3,19 @@
 
 Author: Titipat Achakulvisut, Daniel E. Acuna
 """
-__version__ = '0.2.1'
-from .pubmed_oa_parser import list_xml_path, \
-                              parse_pubmed_xml, \
-                              parse_pubmed_references, \
-                              parse_pubmed_paragraph, \
-                              parse_pubmed_caption, \
-                              parse_pubmed_table
-from .medline_parser import parse_medline_xml, \
-                            parse_medline_grant_id
-from .pubmed_web_parser import parse_xml_web, \
-                               parse_citation_web, \
-                               parse_outgoing_citation_web
-from .utils import pretty_print
+__version__ = "0.2.1"
+from .pubmed_oa_parser import (
+    list_xml_path,
+    parse_pubmed_xml,
+    parse_pubmed_references,
+    parse_pubmed_paragraph,
+    parse_pubmed_caption,
+    parse_pubmed_table,
+)
+from .medline_parser import parse_medline_xml, parse_medline_grant_id
+from .pubmed_web_parser import (
+    parse_xml_web,
+    parse_citation_web,
+    parse_outgoing_citation_web,
+)
+from .utils import pretty_print