diff --git a/python/PROB.py b/python/PROB.py
index 30abea1..5954b3d 100644
--- a/python/PROB.py
+++ b/python/PROB.py
@@ -4,43 +4,49 @@ Solutions to the PROB Rosalind Problem - Introduction to Random Strings
 Author: Peter Vlasveld
 Date: 20190222
 """
+
 import math
 
-#Read in file content into list
+# Read in file content into list
 f1 = open("rosalind_prob.txt")
 content = f1.readlines()
 f1.close()
 
 """
-Function to calculate the probability of the exact sequence given the GC-content
-@param gc - the GC-content given 
+Function to calculate the probability of the exact sequence given the
+GC-content
+@param gc - the GC-content given
 @param seq - the sequence being studied
 
 @return - the raw probability value
 """
+
+
 def calcProb(gc, seq):
     # get probability for just one nucleotide
-    gchalf = gc/2.0
-    athalf = (1.0-gc)/2.0
+    gchalf = gc / 2.0
+    athalf = (1.0 - gc) / 2.0
 
     # multiply all of the probability values for each letter in the sequence
     prob = 1.0
     for i in range(0, len(seq)):
-        if seq[i] == 'A' or seq[i] == 'T':
+        if seq[i] == "A" or seq[i] == "T":
             prob *= athalf
-        elif seq[i] == 'G' or seq[i] == 'C':
+        elif seq[i] == "G" or seq[i] == "C":
             prob *= gchalf
-    
+
     # return the probability value
     return prob
 
+
 # take the log of the probabilities returned by calcProb
 # format them to 3 decimal places
-gcCons = content[1].split( )
+gcCons = content[1].split()
 finalProbs = []
 for i in gcCons:
     rawProb = calcProb(float(i), content[0])
     finalProbs.append("%.3f" % math.log10(rawProb))
 
 # print the probabilities with spaces in between
-print(" ".join(finalProbs))
\ No newline at end of file
+print(" ".join(finalProbs))
+