Python尝试除了其他无效的语法？ [英] Python try except else invalid syntax?

问题描述

所以我试图在Python的IDLE中设置一个小脚本。 IDLE语法检查告诉我这段代码有语法错误：

So I am trying to set up a small script in Python's IDLE. The IDLE syntax check tells me this code has a syntax error:

from ftplib import FTP
import os
def ftpconnect(address, username, password):
    ftp_connection = 0
    ftp = FTP(address)
    try:
        ftp.login(username, password)
        print(ftp.getwelcome())
        if ftp.getwelcome() == '220 FTP Connected!':
            return 1
    else:
        return 0
print(ftpconnect('10.10.10.xxx', 'xxx', 'xxx'))

语法错误来自我试图摆脱try语句的任何地方，这里是else：行。我环顾四周，似乎我有正确的语法......有什么想法吗？

The syntax error comes anywhere that I try to get out of the "try" statement, here being the "else:" line. I've looked around and it seems like I have the right syntax...any thoughts?

谢谢！我正在运行Python 2，而不是3。

Thanks! I'm running Python 2, not 3.

推荐答案

好吧，我自己想出来了。问题不在于我的语法，而在于我的ftp尝试。说ftp = FTP（地址）的行是我需要放入try：语句的行，因为我没有尝试它，它无论如何都失败了。我之所以遇到语法错误，是因为我使用的是其他的，而不是除了。

Alright, I figured it out on my own. The problem was not with my syntax, it was with the my ftp attempt. The line that says "ftp = FTP(address)" was the one I needed to put inside a try: statement, and since I was not "try"ing it, it failed anyway. The reason I was getting a syntax error I believe is because I was using else, rather than except.

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