Резервные команды в двух условиях

Question

Я хочу, чтобы оптимизировать следующий код:

for myFile in myFiles: 
     file = open(filename, 'rt') 
     try: 
      if CLIENT == "C1": 
       head = rows[:7] 
       tail = rows[7:] 
       for row in rows: 
        if "".join(row)!= "": 
         if not u_pass: 
          header = [ row.strip().replace(" ", "_") for row in row[3:] ] 
          u_pass = True 
         else: 
          self.usecases(row, data, index) 

      elif CLIENT == 'C2': 
       reader = csv.reader(file) 
       firstline = next(reader) 
       secondline = next(reader) 
      else: 
       for row in rows: 
        if "".join(row)!= "": 
         if not u_pass: 
          header = [ row.strip().replace(" ", "_") for row in row[3:] ] 
          u_pass = True 
          # Recuperation des donnees 
         else: 
          self.usecases(row, data, index) 

ниже код повторяется дважды в предыдущем коде, то есть есть некоторые общие инструкции между этими условиями "

for row in rows: 

      if "".join(row)!= "": 
       if not u_pass: 
        header = [ row.strip().replace(" ", "_") for row in row[3:] ] 
        u_pass = True 
       else: 
        self.usecases(row, data, index) 

Answer 1

Ниже следует сделать трюк:

for myFile in myFiles: 
    file = open(filename, 'rt') 
    try: 
     if CLIENT == "C2": 
      reader = csv.reader(file) 
      firstline = next(reader) 
      secondline = next(reader) 
     else: 
      if CLIENT == "C1": 
       head = rows[:7] 
       tail = rows[7:] 
      for row in rows: 
       if "".join(row)!= "": 
        if not u_pass: 
         header = [ row.strip().replace(" ", "_") for row in row[3:] ] 
         u_pass = True 
        else: 
         self.usecases(row, data, index)