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



12 comments:

PRATEEK said...

Its working fine ...

pawan kumar singh said...

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

subbulakshmi vinayagam said...

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

subbulakshmi vinayagam said...

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

subbulakshmi vinayagam said...

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

subbulakshmi vinayagam said...

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

Anonymous said...

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

subbulakshmi vinayagam said...

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

pawan singh said...

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

Ying Wang said...

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?

Ying Wang said...

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!

pawan singh said...

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