httplib modifying my regex xml POST message

Question

I try to make a soapclient in Python.

I get an answer, but my Problem is that httplib ist converting my POST:

From

(.)\|WebSphere\|wast/test(.)

in

(.)\\|WebSphere\\|wast/test(.)

What can I do for preventing the code modifying any special characters that I could have in the regex string ?