[421] | 1 | #!/usr/bin/env python |
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| 2 | """This demonstrates an FTP "bookmark". |
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| 3 | This connects to an ftp site; does a few ftp stuff; and then gives the user |
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| 4 | interactive control over the session. In this case the "bookmark" is to a |
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| 5 | directory on the OpenBSD ftp server. It puts you in the i386 packages |
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| 6 | directory. You can easily modify this for other sites. |
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| 7 | """ |
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| 8 | import pexpect |
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| 9 | import sys |
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| 10 | |
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| 11 | child = pexpect.spawn('/usr/bin/ftp ftp.openbsd.org') |
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| 12 | child.expect('Name .*: ') |
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| 13 | child.sendline('anonymous') |
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| 14 | child.expect('Password:') |
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| 15 | child.sendline('pexpect@sourceforge.net') |
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| 16 | child.expect('ftp> ') |
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| 17 | child.sendline('cd /pub/OpenBSD/3.1/packages/i386') |
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| 18 | child.expect('ftp> ') |
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| 19 | child.sendline('bin') |
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| 20 | child.expect('ftp> ') |
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| 21 | child.sendline('prompt') |
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| 22 | child.expect('ftp> ') |
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| 23 | child.sendline('pwd') |
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| 24 | child.expect('ftp> ') |
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| 25 | print("Escape character is '^]'.\n") |
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| 26 | sys.stdout.write (child.after) |
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| 27 | sys.stdout.flush() |
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| 28 | child.interact() # Escape character defaults to ^] |
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| 29 | # At this point this script blocks until the user presses the escape character |
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| 30 | # or until the child exits. The human user and the child should be talking |
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| 31 | # to each other now. |
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| 32 | |
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| 33 | # At this point the script is running again. |
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| 34 | print 'Left interact mode.' |
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| 35 | |
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| 36 | # |
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| 37 | # The rest is not strictly necessary. This just demonstrates a few functions. |
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| 38 | # This makes sure the child is dead; although it would be killed when Python exits. |
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| 39 | # |
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| 40 | if child.isalive(): |
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| 41 | child.sendline('bye') # Try to ask ftp child to exit. |
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| 42 | child.kill(1) # Then try to force it. |
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| 43 | # Print the final state of the child. Normally isalive() should be FALSE. |
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| 44 | print |
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| 45 | if child.isalive(): |
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| 46 | print 'Child did not exit gracefully.' |
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| 47 | else: |
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| 48 | print 'Child exited gracefully.' |
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| 49 | |
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| 50 | |
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