diff --git a/num2words/lang_EN_EUR.py b/num2words/lang_EN_EUR.py
index 503484b..60befef 100644
--- a/num2words/lang_EN_EUR.py
+++ b/num2words/lang_EN_EUR.py
@@ -16,7 +16,7 @@
 
 from __future__ import unicode_literals
 from .lang_EN import Num2Word_EN
-    
+
 class Num2Word_EN_EUR(Num2Word_EN):
     def to_currency(self, val, longval=True, cents=True, jointxt="and"):
         return self.to_splitnum(val, hightxt="euro/s", lowtxt="cents",
@@ -40,7 +40,7 @@ def main():
     for val in [1,120,1000,1120,1800, 1976,2000,2010,2099,2171]:
         print val, "is", n2w.to_currency(val)
         print val, "is", n2w.to_year(val)
-    
+
 
 if __name__ == "__main__":
     main()
diff --git a/num2words/lang_EN_IN.py b/num2words/lang_EN_IN.py
index 3093269..bbe0c9f 100644
--- a/num2words/lang_EN_IN.py
+++ b/num2words/lang_EN_IN.py
@@ -16,7 +16,7 @@
 
 from __future__ import unicode_literals
 from .lang_EN import Num2Word_EN
-    
+
 class Num2Word_EN_IN(Num2Word_EN):
     def set_high_numwords(self, high):
         self.cards[10**7] = "crore"
diff --git a/num2words/lang_EU.py b/num2words/lang_EU.py
index bdb2d32..52ee993 100644
--- a/num2words/lang_EU.py
+++ b/num2words/lang_EU.py
@@ -25,7 +25,7 @@ class Num2Word_EU(Num2Word_Base):
             self.cards[10**n] = word + "illiard"
             self.cards[10**(n-3)] = word + "illion"
 
-        
+
     def base_setup(self):
         lows = ["non","oct","sept","sext","quint","quadr","tr","b","m"]
         units = ["", "un", "duo", "tre", "quattuor", "quin", "sex", "sept",
diff --git a/num2words/lang_RU.py b/num2words/lang_RU.py
index 846d8db..baa40cd 100644
--- a/num2words/lang_RU.py
+++ b/num2words/lang_RU.py
@@ -233,7 +233,7 @@ def int2word(n, feminine=False):
 
         if n3 > 0:
             words.append(HUNDREDS[n3][0])
-            
+
         if n2 > 1:
             words.append(TWENTIES[n2][0])
 
diff --git a/num2words/lang_UK.py b/num2words/lang_UK.py
index 06d7c79..84fb067 100644
--- a/num2words/lang_UK.py
+++ b/num2words/lang_UK.py
@@ -215,7 +215,7 @@ def pluralize(n, forms):
             form = 2
     else:
         form = 2
-    
+
     return forms[form]
 
 
@@ -235,7 +235,7 @@ def int2word(n, feminine=True):
 
         if n3 > 0:
             words.append(HUNDREDS[n3][0])
-            
+
         if n2 > 1:
             words.append(TWENTIES[n2][0])
 
@@ -245,7 +245,7 @@ def int2word(n, feminine=True):
         elif n1 > 0:
             ones = ONES_FEMININE if i == 1 or feminine and i == 0 else ONES
             words.append(ones[n1][0])
-            
+
 
         if i > 0 and ((n1+n2+n3) > 0):
             words.append(pluralize(x, THOUSANDS[i]))
diff --git a/num2words/orderedmapping.py b/num2words/orderedmapping.py
index cf5b0c0..5c29aa1 100644
--- a/num2words/orderedmapping.py
+++ b/num2words/orderedmapping.py
@@ -19,7 +19,7 @@ class OrderedMapping(dict):
         self.order = []
         for key, val in pairs:
             self[key] = val
-            
+
     def __setitem__(self, key, val):
         if key not in self:
             self.order.append(key)