Standardize code style with black.py + isort (#52)

- Run black.py on repo using pyproject.toml settings
- Run `isort --atomic --recursive tests/ newsapi/ setup.py` on repo;
  see also https://github.com/psf/black#how-black-wraps-lines;
  uses .isort.cfg
- Sets line length to 120 max.  This is the width of GitHub source
  code div: see https://stackoverflow.com/a/22207921
- As of now, all flake8 checks are passing except for code complexity
  (C901)

Author: bsolomon1124

.flake8

@@ -10,7 +10,9 @@ exclude =
     requirements/,
     requirements.txt,
 
-max-line-length = 127
+# GitHub source code UI uses 120 columns.  (This varies by browser/OS,
+# but 120 is the least common denominator.)
+max-line-length = 120
 hang-closing = False
 max-complexity = 10
 

.isort.cfg

@@ -0,0 +1,6 @@
+[settings]
+multi_line_output=3
+include_trailing_comma=True
+force_grid_wrap=0
+use_parentheses=True
+line_length=120

newsapi/__init__.py

@@ -1 +1 @@
-from newsapi.newsapi_client import NewsApiClient
+from newsapi.newsapi_client import NewsApiClient  # noqa

newsapi/const.py

@@ -1,13 +1,69 @@
-TOP_HEADLINES_URL = 'https://newsapi.org/v2/top-headlines'
-EVERYTHING_URL = 'https://newsapi.org/v2/everything'
-SOURCES_URL = 'https://newsapi.org/v2/sources'
-countries = {'ae','ar','at','au','be','bg','br','ca','ch','cn','co','cu','cz','de','eg','es','fr','gb','gr',
-             'hk','hu','id','ie','il','in','is','it','jp','kr','lt','lv','ma','mx','my','ng','nl','no','nz',
-             'ph','pk','pl','pt','ro','rs','ru','sa','se','sg','si','sk','th','tr','tw','ua','us','ve','za',
-             'zh'}
+TOP_HEADLINES_URL = "https://newsapi.org/v2/top-headlines"
+EVERYTHING_URL = "https://newsapi.org/v2/everything"
+SOURCES_URL = "https://newsapi.org/v2/sources"
+countries = {
+    "ae",
+    "ar",
+    "at",
+    "au",
+    "be",
+    "bg",
+    "br",
+    "ca",
+    "ch",
+    "cn",
+    "co",
+    "cu",
+    "cz",
+    "de",
+    "eg",
+    "es",
+    "fr",
+    "gb",
+    "gr",
+    "hk",
+    "hu",
+    "id",
+    "ie",
+    "il",
+    "in",
+    "is",
+    "it",
+    "jp",
+    "kr",
+    "lt",
+    "lv",
+    "ma",
+    "mx",
+    "my",
+    "ng",
+    "nl",
+    "no",
+    "nz",
+    "ph",
+    "pk",
+    "pl",
+    "pt",
+    "ro",
+    "rs",
+    "ru",
+    "sa",
+    "se",
+    "sg",
+    "si",
+    "sk",
+    "th",
+    "tr",
+    "tw",
+    "ua",
+    "us",
+    "ve",
+    "za",
+    "zh",
+}
 
-languages = {'ar','en','cn','de','es','fr','he','it','nl','no','pt','ru','sv','se','ud','zh'}
+languages = {"ar", "en", "cn", "de", "es", "fr", "he", "it", "nl", "no", "pt", "ru", "sv", "se", "ud", "zh"}
 
-categories = {'business', 'entertainment', 'general', 'health', 'science', 'sports', 'technology'}
+categories = {"business", "entertainment", "general", "health", "science", "sports", "technology"}
 
-sort_method = {'relevancy','popularity','publishedAt'}
+sort_method = {"relevancy", "popularity", "publishedAt"}

newsapi/newsapi_auth.py

@@ -12,7 +12,4 @@ def __call__(self, request):
 
 
 def get_auth_headers(api_key):
-    return {
-        'Content-Type': 'Application/JSON',
-        'Authorization': api_key
-    }
+    return {"Content-Type": "Application/JSON", "Authorization": api_key}