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[英]Error decoding byte string in Python3 [TypeError: must be str, not bytes]
[英]expect in python3 is throwing error as “must be in str , not bytes”
我正在將我的代碼遷移到python 3.4.3。 這段代碼在python 2.4.3中工作正常。 但這里它在python 3.4.3中拋出錯誤。 我應該使用與預期不同的東西嗎? 這是我的代碼片段,它會收到錯誤:
telconn=pexpect.spawn('telnet 10.24.12.83')
telconn.logfile = sys.stdout
login=telconn.expect([":","key to proceed.",">"])
if login==0:
telconn.send("user1" + "\r")
telconn.expect(":")
telconn.send("paswd1" + "\r\r\r\r\n\n\n")
login1=telconn.expect([">","key to proceed."])
if login1==0:
print("nothing")
elif login1==1:
telconn.expect("key to proceed.")
telconn.send ("\003")
telconn.expect(">")
if login==1:
telconn.send ("\003")
telconn.expect(">")
print("ctlc")
elif login==2:
telconn.send("\n\r")
telconn.expect(">")
我得到的錯誤是:
Traceback (most recent call last):
File "cleanup1.py", line 128, in <module>
Connect()
File "cleanup1.py", line 53, in Connect
login=telconn.expect([":","key to proceed.",">"])
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/spawnbase.py", line 315, in expect
timeout, searchwindowsize, async)
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/spawnbase.py", line 339, in expect_list
return exp.expect_loop(timeout)
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/expect.py", line 97, in expect_loop
incoming = spawn.read_nonblocking(spawn.maxread, timeout)
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/pty_spawn.py", line 455, in read_nonblocking
return super(spawn, self).read_nonblocking(size)
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/spawnbase.py", line 157, in read_nonblocking
self._log(s, 'read')
File "/corp/global/install-dependent/python/3.4.3/lib/python3.4/site-packages/pexpect/spawnbase.py", line 115, in _log
self.logfile.write(s)
TypeError: must be str, not bytes
pexpect
想記錄字節,而不是解碼字符串。 你可以讓它做到這一點:
telconn.logfile = sys.stdout.buffer
sys.stdout
默認為期待字符串。 內部緩沖區很滿意字節。
接受的答案是正確的,因為您當前正在嘗試記錄字節而不是字符串。 但至少從pexpect版本4.6開始,您可以為spawn
提供encoding
參數 。 所以使用:
telconn=pexpect.spawn('telnet 10.24.12.83', encoding='utf-8')
然后使用utf-8自動解碼與生成的終端的所有通信,並且您將能夠使用telconn.logfile = sys.stdout
。
在此錯誤報告中,您應該使用spawnu
而不是spawn
來編寫unicode而不是字節。 您可能不知道spawn
使用二進制日志文件,而spawnu
使用unicode日志文件。
將第53行更改為
login1=telconn.expect(">"+"key to proceed.")
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