highlight.py

temp=[]
i=0
j=0
n=len(df) - 2
m=len(df) - 1
while(i<=n):
  j=i+1
  while(j<=m):
    if(df['end'][i] == df['start'][j]):
      df.loc[i,'end'] = df.loc[j,'end']
      temp.append(j)
      j=j+1
    else:
      i=j
      break  
df.drop(temp,axis=0,inplace=True)