Python 代码不返回整个列表[Codio]

提示符：加载以管道分隔的文件p。每行有3个字段：firstname | lastname |生日

搜索firstname F和lastname L，将生日替换为B。以相同的管道分隔格式将文件写回

我的代码正确返回列表的第一行，但Codio显示一个错误，说明：

您的输出：

亚当·斯密11111985

预期输出：

亚当·斯密11111985

西奥多|安德森| 20031990

亚当·K |斯密| 09091999

蒙蒂|饼干桶| 18101980

亚当·斯密瑟斯| 00000000

Ruthy | Anderson | 06062010

所以我被引导相信我的代码出于某种原因没有打印整个列表？我不知道如何修复它，但是

import sys
P= sys.argv[1] 
F= sys.argv[2]
L= sys.argv[3]
B= sys.argv[4]

# ----------------------------------------------------------------
# 
# Our Helper functions:
# 
# ----------------------------------------------------------------

#
# Loads the file at filepath 
# Returns a 2d array with the data
# 
def load2dArrayFromFile(filepath):
  records = []
  with open(filepath, 'r') as txt:
    elem = txt.readlines()
  for row in elem: 
    recordsList = row.strip('\n').split('|')
    records.append(recordsList)
  return records

# Searches the 2d array 'records' for firstname, lastname.
# Returns the index of the record or -1 if no record exists
# 
def findIndex(records, firstname, lastname):
  import re
  for x in range(len(records)):
    row = records[x]
    if row[0] == F and row[1] == L:
      return x
    else:
      return -1

# Sets the birthday of the record at the given index
# Returns: nothing
def setBirthday(records, index, newBirthday):
  # Your code goes here:
  if index == None:
    return
  
  records[index][2]=newBirthday
  
# Convert the 2d array back into a string
# Return the text of the 2d array
def makeTextFrom2dArray(records):
  # Your code goes here:
  new2D = [ ]
  Char = ""
  for row in records:
    new2D.append(("|").join(row))
    Char = ("\n").join(new2D)
    return Char
# ----------------------------------------------------------------
# 
#  Our main code body, where we call our functions.
#  
# ----------------------------------------------------------------

# Load our records from the file into a 2d array
records= load2dArrayFromFile(P)

# Find out which index, if any, has the name we are hunting
indexWeAreHunting= findIndex(records, F, L)

# Set the birthday record to the one we were passed
setBirthday(records, indexWeAreHunting, B)

# Convert the records into a text string
output= makeTextFrom2dArray(records)

# Your code goes here
# write the text string out to the file
newFile = open(P, 'w')
newFile.write (output)
newFile.close

---

我看到至少有两个地方在循环中有一个无条件的

return

语句。这使得循环毫无意义；只有第一次迭代才会发生。