Kept getting "TypeError: 'in <string>' requires string as left operand"

wxPython Users
1

I am new in Python programming, and have been having trouble with the
following error.

I have been trying to run the "WxHowtoSmallTelnetClient" code I got from
wxPyWiki. I could get the telnet window launched, but when I entered text in
the command frame, the following error displayed in the Interactive Window
on Pythonwin, and nothing got pass to the telnet session.

Traceback (most recent call last):
  File "C:\Python23\telnet_c2.py", line 61, in OnEnter
    self.tn.write(e.GetString() + "\n")
  File "C:\Python23\lib\telnetlib.py", line 289, in write
    if IAC in buffer:
TypeError: 'in <string>' requires string as left operand

Please help.

Sincere,
Man

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2

Traceback (most recent call last):
  File "C:\Python23\telnet_c2.py", line 61, in OnEnter
    self.tn.write(e.GetString() + "\n")
  File "C:\Python23\lib\telnetlib.py", line 289, in write
    if IAC in buffer:
TypeError: 'in <string>' requires string as left operand

I saw this problem when I was using Python 2.2; in 2.3 it works fine. But
basically 'if str in string' won't work if 'str' isn't a single character.
In 2.3, it will take character strings.

Quick solution: use .find() or .index().