Python编辑行

我正在创建一个小程序来编辑文本文件中的文本行

我不断地犯错误

我的代码：

我的错误：

---

我建议您尝试一下，但您的代码如下所示：

myfile = raw_input("Please enter the name of the file you wish to edit: ")
change = input("please enter the line number you wish to change: ")
newLine = raw_input("please enter the new text: ")

f = open(myfile, 'r')
content = f.readlines()
f.close()

try:
  content[change-1] = newLine + '\n'
  f = open(myfile, 'w')
  f.writelines(content)
  f.close()
except IndexError:
  print "Specified line number out of range"

#the for loop is just for checking it worked!!
for things in content:
    print things

当然，您可以通过检查文件是否成功打开来进一步改进这一点

---

如果这不能解决问题或至少表明您的问题，请确保您正在处理的文件具有正确的换行符，并且它们位于预期位置。

@KenWhite Dw，在您的注释后添加了标记：-@热带河马请上传你正在使用的文件。感谢编辑我仍然是新的，正在学习如何在这里正确地贡献和提问。嘿，伙计，欢迎你，非常感谢你的帮助，我仍然是非常新的，正在学习，很难知道从何处获得好的帮助。

    Traceback (most recent call last):

    File "/home/hippopotamus/Desktop/Server and Client Project/Client/Edit.py", line 21, in <module>

    Main()

    File "/home/hippopotamus/Desktop/Server and Client Project/Client/Edit.py", line 11, in Main

    content[change-1] = newLine + '\n'
    IndexError: list assignment index out of range

myfile = raw_input("Please enter the name of the file you wish to edit: ")
change = input("please enter the line number you wish to change: ")
newLine = raw_input("please enter the new text: ")

f = open(myfile, 'r')
content = f.readlines()
f.close()

try:
  content[change-1] = newLine + '\n'
  f = open(myfile, 'w')
  f.writelines(content)
  f.close()
except IndexError:
  print "Specified line number out of range"

#the for loop is just for checking it worked!!
for things in content:
    print things