diff --git a/FourmiCrawler/sources/ChemSpider.py b/FourmiCrawler/sources/ChemSpider.py
index 2fcd07c..254c1a5 100644
--- a/FourmiCrawler/sources/ChemSpider.py
+++ b/FourmiCrawler/sources/ChemSpider.py
@@ -1,9 +1,12 @@
-from source import Source
+import re
+
 from scrapy import log
 from scrapy.http import Request
 from scrapy.selector import Selector
+
+from source import Source
 from FourmiCrawler.items import Result
-import re
+
 
 # [TODO] - Maybe clean up usage of '.extract()[0]', because of possible IndexError exception.
 
diff --git a/FourmiCrawler/sources/NIST.py b/FourmiCrawler/sources/NIST.py
index 0b75b17..2fe5966 100644
--- a/FourmiCrawler/sources/NIST.py
+++ b/FourmiCrawler/sources/NIST.py
@@ -1,9 +1,12 @@
-from source import Source
+import re
+
 from scrapy import log
 from scrapy.http import Request
 from scrapy.selector import Selector
+
+from source import Source
 from FourmiCrawler.items import Result
-import re
+
 
 # [TODO]: values can be '128.', perhaps remove the dot in that case?
 # [TODO]: properties have references and comments which do not exist in the
diff --git a/FourmiCrawler/sources/WikipediaParser.py b/FourmiCrawler/sources/WikipediaParser.py
index cb7d0b9..c4f7a0f 100644
--- a/FourmiCrawler/sources/WikipediaParser.py
+++ b/FourmiCrawler/sources/WikipediaParser.py
@@ -1,9 +1,11 @@
+import re
+
 from scrapy.http import Request
 from scrapy import log
-from source import Source
 from scrapy.selector import Selector
+
+from source import Source
 from FourmiCrawler.items import Result
-import re
 
 
 class WikipediaParser(Source):