double or one thing solution, python solution

solutions/double-or-one-thing/doubleOrOneThing.py

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+import numpy as np 
+
+# number of Test Cases
+T = int(input())
+
+# iterate through all cases
+for t in range(1, T+1):
+  # read case string
+  #   and append a ! to make it easier to iterate through the string 
+  S = input()+"!"
+
+  # encode original string into a histogram-like format
+  # COOOMMETT - > [(C, 1), (O, 3), (E, 1), (T, 2)]
+  count = 0
+  occ = []
+  for i in range(len(S)-1):
+
+    # set current character and add one to its consecutive occurrences
+    s = S[i]
+    count = count + 1
+
+    # set next character
+    next_s = S[i+1]
+
+    # append occurrences
+    if next_s !=s:
+      occ.append([s, count])
+      count = 0
+    #else:
+    #  continue
+
+  # append artificial tuple (!, 0) to facilitate iteration over list
+  occ.append(("!", 0))
+
+  # iterate over the histogram-like string
+  for i in range(len(occ)-1):
+    ch1, times = occ[i]
+    ch2, _ = occ[i+1]
+
+    # if the following character has a greater order than the current one, 
+    #    double the ocurrences of the current character
+    if ch2>ch1:
+      occ[i] = (ch1, 2*times)
+
+  # print output
+  print(f"Case #{t}: {''.join([a*b for a, b in occ])}")