Sunday, January 23, 2011

how to get python pexpect module on windows?

From quite a long time i was looking for a python module like "pexpect" for windows OS. I have wasted so many hours of mine to get some work around, finally what i got might help you all.

1. We can install pexpect module of python on windows . :) :)  But it requires cygwin installation.

2. Download Cygwin and install from any official site. Eg: http://cygwin.com

3. Once cygwin installation has completed, start cygwin session. (execute: cygwin.bat from installation directory or double click shortcut  of cygwin on your desktop.)

4. All windows directories will be referenced with respect to /cygdrive . Eg: D: directory will be referenced as /cygdrive/d/


5. execute following given below commands: Make sure python is installed on your system if not please install before executing given below commands.

#### assuming your python installation directory is C:/python25 ####
$ alias pythonpath=/cygdrive/c/python25/python
$ export pythonpath

6. Now check all well or not :

$ which python
/usr/local/python

#### if every thing will be ok It will return "/usr/local/python"  other wise go through steps given above and check u did all as mentioned there #############

7. Now get your pexpect.tar.gz file.

$ tar -xvzf pexpect.tar.gz
$ cd pexpect

$ python setup.py build
$ python setup.py install



8. Now you can use pexpect in your python script:

Note: you can use pexpect module on python from cygwin prompt only (For: Windows OS).

For Any Other Assistance Please write me on : jeet27.pawan@gmail.com



13 comments:

  1. you can use it without cygwin session(or prompt) and it works.
    Let your cygwin install directory is :
    C:/cygwin

    so you can use python from cygwin module as:

    c:/cygwin/bin/[pythonxx].exe your_python_script.py

    replace pythonxx with your python version like:
    python25,python26 or python31

    ReplyDelete
  2. Hi,
    I tried ur commands. But i got stuck after the following command:
    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory

    please guide me...

    Thanks in advance

    ReplyDelete
  3. Hi,
    I tried ur commands and got stuck after the following:
    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory


    please guide me

    ReplyDelete
  4. Hi,

    I followed ur commands and got stuck in the following:

    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory

    Please guide me

    tnx in advnce

    ReplyDelete
  5. Hi,

    I followed ur commands and got stuck in the following:

    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory

    Please guide me

    tnx in advnce

    ReplyDelete
  6. Hi,

    I followed ur commands and got stuck in the following:

    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory

    Please guide me

    tnx in advnce

    ReplyDelete
  7. Hi,

    I followed ur commands and got stuck in the following:

    Subbulakshmi@DHC008 /cygdrive/c/cygwin/usr/local/bin/pexpect-2.3
    $ python setup.py build
    /usr/local/bin/python.exe: error while loading shared libraries: python27.dll: cannot open shared object file: No such file or directory

    Please guide me

    tnx in advnce

    ReplyDelete
  8. Which python version are you using ? and your python bin directory has that dll or not ?

    ReplyDelete
  9. I am now using python27. I downloaded pexpect-2.3 and have done all the steps from 1-7. Then I type python to enter the interactive mode and then type "import pexpect", but it returned with "ImportError: No module named resource
    A critical module was not found. Probably this operating system does not support it. Pexpect is intended for UNIX-like operating system."
    Could you help?

    ReplyDelete
  10. Hi,
    I am using python2.7 and I have downloaded pexpect-2.3. After steps 1-7, I type python to enter interactive mode, then type "import pexpect", it returns with "ImportError: No module named resource. A critical module was not found. Probably this operating system does not support it. Pexpect is intended for UNIX-like operating system'
    Could you please help? thanks!

    ReplyDelete
  11. Windows changes many things with every upgrade, above steps were tested with win xp.

    ReplyDelete
  12. Hi,

    After importing pexpect, I am getting this error:
    Traceback (most recent call last):
    File "conn.py", line 1, in
    import pexpect
    File "C:\Python27\lib\site-packages\pexpect.py", line 85, in
    support it. Pexpect is intended for UNIX-like operating systems.""")
    ImportError: No module named resource

    A critical module was not found. Probably this operating system does not
    support it. Pexpect is intended for UNIX-like operating systems.

    ReplyDelete