pexpect fails to match command if greater than 65 characters
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Issue with pexpect, python module.
Pexpect fails to do expected behavior if the length of the command is greater than 65.
#!/usr/bin/python
import pexpect
sshCmd='ssh root@15.186.22.105'
prompt='[root@user ~]#'
ConnectToClient=pexpect.spawn(sshCmd)
ConnectToClient.expect('password')
ConnectToClient.send('abcd')
ConnectToClient.expect(prompt)
ConnectToClient.send('echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111 ')
ConnectToClient.expect(prompt) ---> PASS
command = 'echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111'
ConnectToClient.expect(command, prompt)
While expecting ":", the command (.*) prompt ---> FAILS if the length of command is greater than 65.
expect_str = "%s(.*)%s" % (command, self._default_prompt)
python expect
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
add a comment |
Issue with pexpect, python module.
Pexpect fails to do expected behavior if the length of the command is greater than 65.
#!/usr/bin/python
import pexpect
sshCmd='ssh root@15.186.22.105'
prompt='[root@user ~]#'
ConnectToClient=pexpect.spawn(sshCmd)
ConnectToClient.expect('password')
ConnectToClient.send('abcd')
ConnectToClient.expect(prompt)
ConnectToClient.send('echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111 ')
ConnectToClient.expect(prompt) ---> PASS
command = 'echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111'
ConnectToClient.expect(command, prompt)
While expecting ":", the command (.*) prompt ---> FAILS if the length of command is greater than 65.
expect_str = "%s(.*)%s" % (command, self._default_prompt)
python expect
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32
add a comment |
Issue with pexpect, python module.
Pexpect fails to do expected behavior if the length of the command is greater than 65.
#!/usr/bin/python
import pexpect
sshCmd='ssh root@15.186.22.105'
prompt='[root@user ~]#'
ConnectToClient=pexpect.spawn(sshCmd)
ConnectToClient.expect('password')
ConnectToClient.send('abcd')
ConnectToClient.expect(prompt)
ConnectToClient.send('echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111 ')
ConnectToClient.expect(prompt) ---> PASS
command = 'echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111'
ConnectToClient.expect(command, prompt)
While expecting ":", the command (.*) prompt ---> FAILS if the length of command is greater than 65.
expect_str = "%s(.*)%s" % (command, self._default_prompt)
python expect
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
Issue with pexpect, python module.
Pexpect fails to do expected behavior if the length of the command is greater than 65.
#!/usr/bin/python
import pexpect
sshCmd='ssh root@15.186.22.105'
prompt='[root@user ~]#'
ConnectToClient=pexpect.spawn(sshCmd)
ConnectToClient.expect('password')
ConnectToClient.send('abcd')
ConnectToClient.expect(prompt)
ConnectToClient.send('echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111 ')
ConnectToClient.expect(prompt) ---> PASS
command = 'echo abcdefghijklmnopqrst111111111111111111111111111111111111111111111111111111111'
ConnectToClient.expect(command, prompt)
While expecting ":", the command (.*) prompt ---> FAILS if the length of command is greater than 65.
expect_str = "%s(.*)%s" % (command, self._default_prompt)
python expect
python expect
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
edited Aug 13 '16 at 15:06
Thomas Dickey
52k594164
52k594164
asked Aug 4 '15 at 17:10
Bangi
99117
asked Aug 4 '15 at 17:10
Bangi
99117
asked Aug 4 '15 at 17:10
Bangi
99117
99117
OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32
add a comment |
OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32
OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32
OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32
add a comment |
2 Answers
2
active
oldest
votes
There are 2 things wrong with your program. The last line is illegal:
ConnectToClient.expect(command, prompt)
is not valid, as expect takes as 2nd argument a timeout number, not a string.
The other problem is that in the call:
ConnectToClient.expect(prompt)
prompt should be a regex (regular expression). You provide a string, which will be compiled into a regex. However, in a regex the character [ is special so you need to escape it. Either set
prompt = r'[root@user ~]#'
or instead of using .expect() use .expect_exact() which wants strings, not regexes.
answered Aug 5 '15 at 14:09
meuh
31.4k11854
add a comment |
By default pexpect windowsize is set to (24 rows and 80 coloumns)
in my case, when length of prompt and command exceeds 80 . I face this issue.
By changing the setwinsize(24,80) to setwinsize(24,150), It works fine.
answered Aug 10 '15 at 19:38
Bangi
99117
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
There are 2 things wrong with your program. The last line is illegal:
ConnectToClient.expect(command, prompt)
is not valid, as expect takes as 2nd argument a timeout number, not a string.
The other problem is that in the call:
ConnectToClient.expect(prompt)
prompt should be a regex (regular expression). You provide a string, which will be compiled into a regex. However, in a regex the character [ is special so you need to escape it. Either set
prompt = r'[root@user ~]#'
or instead of using .expect() use .expect_exact() which wants strings, not regexes.
answered Aug 5 '15 at 14:09
meuh
31.4k11854
add a comment |
There are 2 things wrong with your program. The last line is illegal:
ConnectToClient.expect(command, prompt)
is not valid, as expect takes as 2nd argument a timeout number, not a string.
The other problem is that in the call:
ConnectToClient.expect(prompt)
prompt should be a regex (regular expression). You provide a string, which will be compiled into a regex. However, in a regex the character [ is special so you need to escape it. Either set
prompt = r'[root@user ~]#'
or instead of using .expect() use .expect_exact() which wants strings, not regexes.
answered Aug 5 '15 at 14:09
meuh
31.4k11854
add a comment |
There are 2 things wrong with your program. The last line is illegal:
ConnectToClient.expect(command, prompt)
is not valid, as expect takes as 2nd argument a timeout number, not a string.
The other problem is that in the call:
ConnectToClient.expect(prompt)
prompt should be a regex (regular expression). You provide a string, which will be compiled into a regex. However, in a regex the character [ is special so you need to escape it. Either set
prompt = r'[root@user ~]#'
or instead of using .expect() use .expect_exact() which wants strings, not regexes.
answered Aug 5 '15 at 14:09
meuh
31.4k11854
There are 2 things wrong with your program. The last line is illegal:
ConnectToClient.expect(command, prompt)
is not valid, as expect takes as 2nd argument a timeout number, not a string.
The other problem is that in the call:
ConnectToClient.expect(prompt)
prompt should be a regex (regular expression). You provide a string, which will be compiled into a regex. However, in a regex the character [ is special so you need to escape it. Either set
prompt = r'[root@user ~]#'
or instead of using .expect() use .expect_exact() which wants strings, not regexes.
answered Aug 5 '15 at 14:09
meuh
31.4k11854
answered Aug 5 '15 at 14:09
meuh
31.4k11854
answered Aug 5 '15 at 14:09
meuh
31.4k11854
answered Aug 5 '15 at 14:09
meuh
31.4k11854
31.4k11854
add a comment |
add a comment |
By default pexpect windowsize is set to (24 rows and 80 coloumns)
in my case, when length of prompt and command exceeds 80 . I face this issue.
By changing the setwinsize(24,80) to setwinsize(24,150), It works fine.
answered Aug 10 '15 at 19:38
Bangi
99117
add a comment |
By default pexpect windowsize is set to (24 rows and 80 coloumns)
in my case, when length of prompt and command exceeds 80 . I face this issue.
By changing the setwinsize(24,80) to setwinsize(24,150), It works fine.
answered Aug 10 '15 at 19:38
Bangi
99117
add a comment |
By default pexpect windowsize is set to (24 rows and 80 coloumns)
in my case, when length of prompt and command exceeds 80 . I face this issue.
By changing the setwinsize(24,80) to setwinsize(24,150), It works fine.
answered Aug 10 '15 at 19:38
Bangi
99117
By default pexpect windowsize is set to (24 rows and 80 coloumns)
in my case, when length of prompt and command exceeds 80 . I face this issue.
By changing the setwinsize(24,80) to setwinsize(24,150), It works fine.
answered Aug 10 '15 at 19:38
Bangi
99117
answered Aug 10 '15 at 19:38
Bangi
99117
answered Aug 10 '15 at 19:38
Bangi
99117
answered Aug 10 '15 at 19:38
Bangi
99117
99117
add a comment |
add a comment |
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OP has asked same question on the pexpect development page over a month ago on GitHub, but no reply. github.com/pexpect/pexpect/issues/225
– steve
Aug 5 '15 at 6:32