I can not installing dm package

[dicos]

Hi! I'm using python 2.7. It wirte in console:
$ pip install git+git://github.com/thisismedium/python-sasl.git
Downloading/unpacking git+git://github.com/thisismedium/python-sasl.git
Cloning Git repository git://github.com/thisismedium/python-sasl.git to /tmp/pip-gWIy0m-build
Running setup.py egg_info for package from git+git://github.com/thisismedium/python-sasl.git

Downloading/unpacking md.py (from python-sasl)
Running setup.py egg_info for package md.py

no previously-included directories found matching 'docs/.build'

Downloading/unpacking importlib (from md.py->python-sasl)
Running setup.py egg_info for package importlib
Traceback (most recent call last):
File "", line 14, in
File "/home/dmitry/web/on_day_ru/build/importlib/setup.py", line 6, in
raise Exception("importlib is included in Python 2.7 and newer for 2.x")
Exception: importlib is included in Python 2.7 and newer for 2.x
Complete output from command python setup.py egg_info:
Traceback (most recent call last):

File "", line 14, in

File "/home/dmitry/web/on_day_ru/build/importlib/setup.py", line 6, in

raise Exception("importlib is included in Python 2.7 and newer for 2.x")

Exception: importlib is included in Python 2.7 and newer for 2.x

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Command python setup.py egg_info failed with error code 1
Storing complete log in /home/dmitry/.pip/pip.log